- _T _ _ I E1196 Dominican Republic Samana Toll Road Environmental Impact Study For Construction of Santo-Domingo - Rincon Del Molinillo Roadway l~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ AUTOPISTAS DEL NORDESTE, C por A FINAL STUDIES TO CONSTRUCT THE SANTO DOMINGO - RINCON DEL MOLINILLO ROADWAY ENVIRONMENTAL IMPACT STUDY I.~ ~~~~ . . . . .m i INDEX OF CHANGES Index of Revisions Section Changed Date of Observations Change 01 Chapter 4 2003-01 Original Versi6n Chapter 6 Chapter 8 Inclusion of Chapter 11 REVISION AND APPROVAL Revisi6n Number 00 Responsible for preparation Name Hernan Aristizabal Company Responsible for Revision Name Mauricio Maldonado Ch. Company Responsible for approval Name Jairo A. Espejo M. Project Director Company Date 2003-01 2 TABLE OF CONTENTS 1. GENERAL ASPECTS OF THE STUDY 11 Background history 11 Objectives 11 Scope 11 Study's outline 12 Participating professional group 13 Areas of influence 14 Definition 14 Demarcation 14 3 TECHNICAL DESCRIPTION OF THE PROJECT 16 3.1 General aspects 16 3.1 General CharacterIstics 17 3.2.1 Geometric Characteristics 19 3.2.2 Traffic Estimates 20 3.2.3 Altitude Profile 20 3.2.4 Drainage Works 31 3.2.5 Infrastructures and Intercepted Services 31 3.1 TechnicaL Activities of the Project 33 3.4.1 Preliminary Activities 33 3.4.3 Road Operation and Maintenance Phase 39 3.5.1 Water Demand 40 3.5.2 Demand of Materials and Equilibrium of the Masses 41 3.1 Project estimated budget 41 3.1 Works approximate timetable 42 4. ENVIRONMENTAL BASE LINE 43 4.1 Physical aspect 43 4.1.1 Geospherical Component 43 4.1.2 Hydrologic Component 62 4.1.3 Atmospheric Component 69 4.2 Biotic aspect 83 4.2.1 Flora Component 83 4.2.2 Fauna Component 84 4.23 Hydro-biologic Characterization 94 4.3 Social aspect 110 4.3.1 Demographic Processes 110 4.3.2 Public Services structure 116 4.3.3 Cultural Aspects 125 5. CURRENT NORMATIVE AND INSTITUCIONAL CONSIDERATIONS146 5.1 Legal Considerations 146 5.2 InstituTional Responsabilities 148 6. ENVIRONMENTAL IMPACTS IDENTIFICATION AND EVALUATION 149 6.1 General aspects 149 6.2 Methodological aspects 149 6.2.1 Technical Components of the Project that Can Cause Environmental or Social Affectations 149 6.2.2 Preliminary Identification of the Affected Environmental Elements 150 3 6.2.3 Environmental indicators 150 6.2.4 Impact Identification Matrix 151 6.2.5 Evaluation Criteria and Scales 152 6.3 Evaluative discussion 153 6.3.1 Effects on the physical component. 153 6.3.2 Effects on the Biotic Component 162 6.3.3 Effects on the Socioeconomic Component 168 6.4 Conclusions of the evaluation 175 7. ACTION ALTERNATIVES ANALYSIS 177 7.1 Criteria for this anaylysis 177 7.2 Alternatives considered D 177 8 INTERINSTITUCIONAL COORDINACION AND PARTICIPATION OF THE PARTIES 180 7. ACTION ALTERNATIVES ANALYSIS 180 8.1 Criteria for this analysis 180 8.2 Alternatives Considered 180 9. MANAGEMENT AND ENVIRONMENTAL ADAPTATION PROGRAM 183 9.1 Introduction 183 9.2 Mitigation measures 183 9.2.1 General Management Measures 184 9.2.2 Physical Component Management 184 9.2.3 Management of Biotic Component 205 9.2.4 Landscaping Management plan 222 9.2.5 Social Management Plan 224 9.3 Special Measures 230 9.3.1 Plan for managing the passage though the "Parque Natural Los Haitises" 230 9.3.2 Plan for Relocating Families 235 9.4 Costs and Timetable 244 9.4.1 Costs Analysis for the Environmental Management Plan 244 9.4.2 Timetable for the environmental management plan 247 9 INTERINSTITUCIONAL COORDINACION AND PARTICIPATION OF THE PARTIES 249 10 MONITORiNG AND fOLLOW UP ENVIRONMENTAL PLAN 250 10.1 Environmental supervision 250 10.2 Monitoring water quality 251 10.3 Monitoring air quality 252 10.4 Families relocation accompaniment 254 10.5 Costs of environmental monitoring and follow up 254 10.5.1 Environmental Supervision Costs 254 10.5.2 Water Quality Monitoring Costs: 254 10.5.3 Air Quality Monitoring 255 11. Contingency plan 256 11.1 Analysis of environmental risks 256 11.2 Vulnerability analysis 257 11.3 Institutions Responsible for the Contingency Plan 257 11.4 Action Plan 258 11.5 Contingencies Involving Public Utilities 259 4 12. Bibliografia 261 5 INDEX OF TABLES Pag. Table 3.1 Daily average traffic projected volumes- km40) 10 Table 3.2 Daily average traffic projected volumes (km40-kml06) 10 Table 3.3 List ofthe road's bridges 21 Table 3.4 Interferences of the road with the existing infrastructure 22 Table 3.5 Affectation to urban properties 23 Table 3.6 Source of materials 27 Table 3.7 Plan to use sources to balance supply and demand of materials 31 Table 3.8 Balances of masses 31 Table 3.9 Estimated Budget 32 Table 4.8 Characterization of some faults of the Dominican Republic 42 Table 4.2 Climatic stations used for the study 65 Table 4.3 Rainfall Data by climatic stations 72 Table 4.4 Number of bird species per families in the region 80 Table 4.5 Mammals registered in the zone studied 84 Table 4.6 Reptiles recorded in the zone studied 86 Table 4.7 Amphibious recorded in the zone studied 87 Table 4.8 Fish recorded in the zone studied 87 Table 4.9 Macro-invertebrates collected from the Yuna River 93 Table 4.10 Periphytic algae collected from the Yuna River 93 Table 4.11 Macro-invertebrates collected in the Aglypo project irrigation channel 94 Table 4.12 Periphytic algae collected in the Aglypo project irrigation channel 95 Table 4.13 Macro-invertebrates collected from the Guaraguao River 96 Table 4.14 Periphytic alga collected from the Guaraguao River 96 Table 4.15 Macro-invertebrates collected from the Boyd River 98 Table 4.16 Periphytic alga collected from the Boya River 98 Table 4.17 Macro-invertebrates collected from the Lim6n Stream 99 Table 4.18 Periphytic alga collected from the Lim6n Stream 100 Table 4.19 Macro-invertebrates collected in the Yavi Stream 100 Table 4.20 Periphytic alga collected from the Yavi Stream 101 Table 4.21 Macro-invertebrates collected from the Yabacao River 102 Table 4.22 Periphytic algae collected from the Yabacao River 103 Table 4.23 Towns and population densities 104 Table 4.24 General Population and No. of Homes (1993) 106 Table 4.25 Urban - Rural Population by Province 106 Table 4.26 Urban-rural population according to municipality 107 Table 4.27 Male/Female ratio by province 107 Table 4.28 Population by sex, and male index, according to municipalities 108 Table 4.29 Birth and mortality indicators 108 Table 4.30 Population by place of birth according to province 109 Table 4.31 Private homes occupied and water supply systems 110 Table 4.32 Population in private homes by province and by water supply 110 Table 4.33 Private homes occupied and lavatory service 110 Table 4.34 Type of sanitary services by province 111 6 Table 4.35 Population with electric power service by provinces 112 Table 4.36 Private homes occupied and electric power service 112 Table 4.37 Population and number of homes per province (1993 census) 113 Table 4.38 Health indicators 113 Table 4.39 Health human and physical resources according to provinces (1998) 114 Table 4.40 Morbidity recorded according to provinces (1998) 114 Table 4.41 Morbidity recorded by groups of cause according to province (1998) 114 Table 4.42 Education indicators (1999 - 2000) 115 Table 4.43 Population 5 years of age and over by illiteracy conditions and percentage of illiterates, according to municipality 116 Table 4.44 Population 5 years of age and over by illiteracy conditions, percentage of illiterates, according to municipality, and zones 117 Table 4.1 PEA Recorded in the 1993 census and estimated to year 2000 123 Table 4.46 Agrarian reform project in the region, on December 31, 1999 124 Table 4.47 Quantity of farms and square meters by type of farms, according to provinces 126 Table 4.48 Quantity of producers by gender, according to provinces 126 Table 4.49. Number of producers by land tenancy, according to province 126 Table 4.50 Number of producers of the reform by land tenancy, according to provinces 127 Table 4.51 Total agricultural square meters under irrigation and by producers according to provinces 128 Table 4.52 Sowing, harvesting and production of main cultivations, Provincia de Duarte year 2001 128 Table 4.53 Sowing, harvesting and production of main cultivations, Provincia de Maria Trinidad Sanchez, year 2001 128 Table 4.54 Sowing, harvesting and production of main cultivations, Provincia de Monte Plata, year 2001 129 Table 4.55 Sowing, harvesting and production of main cultivations, Provincia de Samana, year 2001 129 Table 4.56. Contribution of hotels, restaurants and bars subsector to the gross domestic product (GDP) 1993-1998 (millions of US$) 129 Table 4.58 Currency generated by tourism, and main export headings, years 1996-1998 (millions of US$) 130 Table 4.9 Room offer in tourist accommodation institutions, according to number of rooms, year 2001 130 Table 4.59 Market segmentation, guests distribution by origin according to zones. Year 2001 (Values in %) beach areas 131 Table 6.10 Evaluation of environmental effects on physical components 147 Table 6.11 Pollutant emission factors for vehicles 151 Table 6.12 Volume of emissions due to traffic (Per km traveled, km 0 - km 40) 152 Table 6.13 Volume of emissions due to traffic (Per km traveled, km 40 - km 106) 153 Table 6.5 Evaluation of environmental effects on the biotic component 156 Table 6.6 Evaluation of environmental effects on the 7 socioeconomic component 161 Table 9.1 Characteristics of source materials 192 Table 9.2 Source of materials 192 Table 9.3 Recommended species for Reforestation 212 Table 11.1 List of important institutions for the Contingency Plan 242 8 INDEX OF FIGURES Pag. Figure 3.1 Project Location 8 Figure 3.2 Typical Section Lot 1 11 Figure 3.3 Typical Section Lot 2 12 Figure 3.4 Typical Section Lot 3 Page 1 of 2 13 Figure 3.4 Page 2 of 2 14 Figure 3.5. Typical Section Lot 4 Page 1 of 2 15 Figure 3.5 Typical Section Lot 4 Page 2 of 2 16 Figure 3.6 Typical Section Lot 5 (Page 1 of 1) 17 Figure No. 3.6 Typical Section Lot 5 (Page 2 of 2) 18 Figure 3.7 Altitude Profile of the road. Page 1 of 2 19 Figure No. 3.7 Altitude Profile of the road. Page 2 of 2 20 Figure 4.1 Landscape Figures 54 Figure 4.2 River beds and bodies of water crossed by the road 61 Figure 4.3 Hidrograph of the Guaraguao River Flood 64 Figure 4.4 Hidrograph of the Arroy6n Stream Flood 64 Figure 4.5 Hidrograph of the Yabacao River Flood 65 Figure 4.6 Location of the pluviometric stations 66 Figure 4.7 Multi-annual Average Data 68 Figure 4.8 Multi-annual monthly precipitation 69 Aeropuerto Las America Station Figure 4.9 Multi-annual monthly precipitation, Santo Domingo Station 69 Figure 4.10 Multi-annual monthly precipitation, La Victoria Station 70 Figure 4.11 Multi-annual monthly precipitation, Monte Plata Station 70 Figure 4.12 Multi-annual monthly precipitation, Abadesa Station 71 Figure 4.13 Multi-annual monthly precipitation, Barraquito Station 72 Figure 4.14 Multi-annual monthly precipitation, Abadesa Station 72 Figure 4.15 Multi-annual monthly temperature, Santo Domingo Station 75 Figure 4.16 Multi-annual monthly temperature, Aeropuerto Las Americas Station 76 Figure 4.17 Multi-annual monthly temperature, Estacion Bayaguana 77 Figure 4.18 Multi-annual monthly temperature, Aeropuerto La Victoria Station 77 Figure 4.19 Political-Administrative Division and Socioeconomic Area of Influence 105 Figure 4.20 Location of National Reserves in Los Hiateses National Park 135 Figure 6.1 Environmental interaction matrix 146 Figure 6.8 Daily emission levels of S02 and NOx in the stretch K 0 - K 40(Ag/m3/ per km of the route) 154 Figure 6.9 Daily emission levels of S02 and NOx in the stretch km 40 - km 106 (ig/m3/ per km. of route) 154 Figure 6.10 Daily emission levels of CO (g/m3/ km of route) 155 Figure 9.1 Typical design of grease traps 173 Figure 9.2 Typical design of sediments trap 174 Figure 9.3 Typical design of a septic tank 175 Figure 9.4 Spillage control dike 176 Figure 9.5 Typical design manual sanitary fill 177 Figure 9.6 Irrigating Roadways 187 Figure 9.7 Repositioning Taluses 203 9 Figure 9.8 Protecting water banks 213 Figure 9.9 Hedges 214 Figure 9.10 Reforestation in dampening strip Los Haiteses Park 223 Figure 9.11 Landscaping Design and management of the Los Haiteses Park 224 Figure 9.12 Observation area in the riding zone by ecological trails 225 Figure 9.13 Landscaping viewpoint at the park's exit towards Guaraguao 226 Figure 9.14 Environmental management plan timetable 233 10 1. GENERAL ASPECTS OF THE STUDY BACKGROUND HISTORY The Public Works and Communications Secretariat ("Secretaria de Estado de Obras Puiblicas y Comunicaciones"), SEOPC, through the concession modality, awarded to Autopistas del Nordeste C por A, the design, construction, operation, and maintenance of the new road between Santo Domingo - Cruce Rinc6n de Los Molinillos, with 106 km in length. The first stage of the concession has to do with the execution of final designs and road details, starting from a pre-design, which was prepared by the Consortium Inarsa Tecnoamerica, in 1999, for SEOPC. The final studies are: Topography and geometrical design, geology for engineering, geotechnics for the foundations, geotechnics for pavements and materials, structures, hydrology, hydraulics and drainage, quantity of works, budget and specifications as well as environmental studies. The first phase corresponds to studies that must be performed will last nine months, the second phase, which corresponds to construction will last 26 months; the third phase will last 30 years. OBJECTIVES The fundamental objective of the study is to evaluate the environmental effects that can be foreseen, directly or indirectly caused by the project activities, in order to be able to design an environmental management plan for the project, involving preventive measures, specific mitigation measures for those effects that can be mitigated, as well as compensation for those effects that cannot be mitigated. SCOPE This study's scope is the one contained in the Terms of Reference issued by the for the Environment, and Natural Resources Secretariat of State ("Secretaria de Estado de Medio Ambiente y Recursos Naturales"). The scope is the following: - Characterizing and analyzing the biotic, abiotic and socio-economic means by which the road will be developed. - Defining the environmentally critical, sensitive and environmentally significant areas and identifying especial management areas which should be excluded, or managed in a particular way in developing or executing the project. - Assessing the offer and vulnerability of resources used or affected by the project; determining the size and evaluating the environmental and social impacts of the project in order to determine their severity, as well as determining measures and actions that should be taken in order to prevent, control or correct them. - Establishing deficiencies in information that generate uncertainty in respect of impact assessment. 11 - Designing prevention, mitigation, correction and compensation of impact measures and the environmental management that may be required. - Evaluating costs and preparing an investment and execution timetable for the works and the environmental management actions. - Designing follow up and environmental control systems that allow the user to evaluate the behavior, the efficiency, and the Environmental Management Plan. STUDY'S OUTLINE The study has the following chapters: * Chapter 1 contains the general aspects, objectives and scope of the project. * Chapter 2 presents the boundaries and description of the area of influence of the road project. * Chapter 3 presents a technical description of the road, in which emphasis is made on those activities which may cause negative or positive environmental effects. * Chapter 4 presents the environmental description including physical, biotic, social, economic and cultural aspects. * Chapter 5 analyzes the norms and institutional aspects enforced related to environmental issues of the road. * Chapter 6 presents the analysis of environmental impacts caused by the construction and maintenance of the road. * Chapter 7 presents an analysis of action alternatives. * Chapter 8 presents inter-institutional coordination and participation. * Chapter 9 presents the environmental management measures structured as an integral environmental management and a series of management plan cards, which allow the contractor to understand the plan. An analysis on the cost of the Environmental Management Plan is included as well as the corresponding execution timetable. * Chapter 10 presents The Environmental Monitoring and Follow-up Plan, and it is aimed at verifying that constructors apply the measures included in the Environmental Management Plan, and aimed at environmental supervision by the Public Works and Communications Secretariat of State. * Chapter 8 presents the Contingency Plan. 12 PARTICIPATING PROFESSIONAL GROUP The following professionals participated in preparing the Environmental Impact Study: Civil Engineer Jairo Espejo M., in charge of general direction of final design studies for the road. Biologist Hemrnn Aristizabal G. was in charge of the environmental study direction Revision of the environmental study was under the responsibility of Civil Engineer Mauricio Maldonado Ch. Hydrology issues were developed by Eng. Mayra Sanchez Geology and geo-technical issues were under the responsibility of Geologist Osiris De Le6n Forestry Engineer Gonzalo Jimenez developed forestry and landscape issues. Economist Jose Alfonso Rojas developed social aspects. Engineer Liliana Orejuela developed the technical description of the project. 13 AREAS OF INFLUENCE DEFINITION The environmental area of influence for the project is defined as the physical, biotic and socioeconomic space prone to suffer alterations as a result of the construction and operation of the project. It is described as the area of direct or indirect influence according to the type of impacts and the coverage area where possible effects may be produced on the natural renewable resources and on the human population. If the effects are produced as a consequence of one or more technological activities of the project, it is considered that the site where they are produced is a part of the direct area of influence. Where effects are induced by the presence of the project, but not as a consequence of one or more specific activities, it is considered an area of indirect influence. The definition of the project's area of influence will allow to perform a specific interpretative analysis of the physical, biotic, and socioeconomic parameters affected by the project's construction and operation. In order to evaluate the environmental impacts and to describe the environment, two main areas of influence will be taken into consideration as follows: Physical Environment - biotic: Area of influence referring to the following aspects: climate, atmospheric quality, hydrology, soils and geo-morphology related to the physical component. With respect to the biotic component, it covers issues related to the various ecological systems, vegetation, fauna as well as the biotic quality of the water. Socioeconomic Environment: Area of influence referring to the population, services, production activities, institutional and regulatory issues such as zoning the use of the soil. DEMARCATION In respect of defining the influence on the vegetation component, it is established as the corridor of the grading and conformation of the embankment of the road, which in this case is 60 meters wide, and referred to as the construction corridor of influence, and it is contained within a wider strip or corridor (of 1,000 m, 500 meters at each side of the road's axis), demarcated as area of direct influence (specification made pursuant to the terms of reference issued by the Environmental Secretariat). Additionally, all bodies of water crossed by the road, downstream, due to a possible contribution of sediments, at a stretch of one km. As corridor of indirect influence considering some synergy effects derived by effects on the vegetation component and by the influence on the area's landscape associated to the fauna and the socio-cultural tradition, it is considered a corridor of two km wide, one km at each side of the road's axis. (See Map 1) 14 I From the socio-economic perspective, the current route of the road will directly affect communities which together exceed 12.000 persons, not because it will cause their displacement, but because it will pass near them (at a distance of 500 meters to two kilometers). The main communities affected are the following: Rinc6n de Molinillo, El Aguacate de Arenoso, Los Platanitos, La Curva de Papolo, La Raya-El Puente, Guaraguo, El Higuarito, Juan Sanchez, Majagual, the Bateyes ("grounds occupied by sugar mills and ancillary installations") Nuevo, Pilago, Juan Sanchez, Enriquez, Gonzalo, Carmona, Sabana Larga and Bara de Capa (Cabrete), Yabacao, el Salado, Las Mercedes, la Altagracia, Mata Indio, Pueblo Nuevo, Hatillo, and las Taranas. From Cabrete, in the community of Guerra, up to Majagual cattle raising is significant, however, from the Macizo of Los Haitises it reaches the Valley of Bajo Yuna, were rice is predominantly grown. The road runs South / North through several municipalities of various provinces which form the area of indirect influence, starting at the Municipal District of Guerra, located within the municipality of Boca Chica-Guerra, which belong since 2001 to the Nueva Provincia de Santo Domingo. The road crosses through the section called Cabreto. Then, the road penetrates the Province of Monte Plata through the municipality which has the same name, and passes through the road which links the Municipality of Bayaguana with Monte Plata and leaves the province through the Municipal District of Majagual, located at the Municipality of Sabana Grande de Boyd; affecting small populations in each of the aforementioned municipalities. After crossing several kilometers through the National Park of Los Haitises, it penetrates part of the Municipality of Arenoso, in the Province of Duarte and leaves through the Crossing of Rinc6n de Molinillo, in the Municipality of Nagua, in the Province of Maria Trinidad Sanchez, just on the border of Municipality of Sanchez in the Province of Samana. 15 3 TECHNICAL DESCRIPTION OF THE PROJECT 3.1 GENERAL ASPECTS The project contemplates construction of the road Santo Domingo-Cruce Rinc6n de Molinillos (between Nagua and Sanchez) with a total length of 106 km. This road will connect the national district of Santo Domingo with the roadway that connects Nagua, Sanchez and Samana, at the northeastern coast of the Dominican Republic.. The road starts at km 15 of the Autopista de Las Americas heading north, within the basin of the Ozama River and its first stretch is conformed by a hard, thick, porous, very permeable coral limestone, allowing a fast vertical natural drainage. After the crossing with the Mella roadway, the road turns northeast up to the crossing with the roadway that links the town of Bayaguana to Monte Plata (approximately seven km from Monte Plata), over clayey strips. Then it crosses the roadway that links Monte Plata to Sanchez and it continues in the northeastern direction until it converges with the existing cart road that links Sabana Grande de Boyd with the sector known as Procad6n (dairy barns), the cart road has an average width of five m with a junction length of approximately 12 km. In its route it passes near the batey Sabanalarga, Gonzalo and Tarana, where the project turns to the north. In this sector of the Ozama River basin, the tributaries that stand out are the Cach6n Stream, the Marucho Channel, the Yabacao River, Hundidero Stream, Palmilla Stream, Socoa Stream, and Toro Prieto Stream. Near the town of Sabana Grande de Boyd and heading towards Majagual it crosses at several points with the Sabana Grande de Boya - Majagual roadway passing near the Batey Enriquillo, Juan Sanchez and Batey Nuevo, an area with karst limestone, and inside the Aras River basin. From Majagual the road follows the existing cart road (nine km) into Los Haitises until it exits near the town of Guaraguao (Bajo Yuna), and it takes the route that links Guaraguao with Rinc6n de Molinillos branching off three km before reaching this crossing, going through La Mata del Aguacate. The area of Los Haitises constitutes a karst relief integrated by isolated domes of very hard reef limestone, separated by depressions or drains filled with laterite ground coming from neighboring residual origin. This last stretch crosses the area of the Gran Esteroun the area of the Bajo Yuna whose main characteristic is bad drainage due to the low slopes that are present in the area, with a flood prairie conformed by fine sediments associated with lenses of 16 sandy slit, sands and fine gravel. The project meets the Yuna River at the town of Reforma, between Villa Riva and El Lim6n, The most critical area from the seismic standpoint along the road's route, is the Bajo Yuna area, from Guaraguao up to the Rinc6n de Molinillo crossing, because the western portion of the Samand Bay is limited by two large active faults. From the geographic location viewpoint, the road crosses the country from the north to the south, as it was described on the above numeral. Figure 3.1 shows the project's location. 3.1 GENERAL CHARACTERISTICS The alignment starts at the Autopista de Las Americas, at km 15, near the current tollbooth that can be found in the direction of the Aeropuerto Internacional de las Americas, it continues heading north passing at the East of the Monte Plata Municipality, continuing up to the municipalities of Sabana Grande de Boyd and Majagual, it crosses Los Haitises National Park and it continues through the Guaraguao Municipality, where the road passes by the great marsh up to the crossing of the current roadway that goes from Nagua to Samana. The road will take advantage of some stretches that are at the road surfacing level, such as the sectors from kmO+OOO to km3+500, from km72+000 to kmlO6+000. The remaining road stretches will be brand new. For its design, the project is subdivided into six lots: * Lot No. 1: From the start of kmO+OOOO up to kml 0+000. * Lot No. 2: From the abscissa of kmlO+OOO up to km3O+OOO * Lot No. 3: From the abscissa of km3O+OOO up to km5O+OOO * Lot No. 4: From the abscissa of km5O+OOO up to km83+900 * Lot No. 5: From km83+900 up to the Rinc6n de Molinillos crossing (kml 06+020) * Lot No. 6: Bridges and Intersections 17 I Figure 3.1 Project Location 18 m~ I 4 ma ro~ ~ ~ ~ ~ ~~~~~~~~~~~~~~~~~~~~~~~~~~LOE4 LT K-5 -7- ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~~~~ -.~~~~~470 2~~~~~~, L'--TE 3 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~~~~~~7- LOCALIZACION GEOCRAFICA ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ LOALZCIN J VA REPUBLICA DISOMINICANAT DMIG ETUIO E MPCT MBENA - LOTE4.LOTE5- -2 3 3.2.1 Geometric Characteristics * Generalities The project's geometric design was prepared by Consultoria Colombiana S.A. based on the corridor defined by the Public Works and Communications Secretariat -SEOPC. Inside the project's corridor there were planimetric and topographical control points placed through GPS each km and some intermediate points (BM) in order to redefine the project's axis through full electronic stations with electronic data collectors, leveled with a precision level. Starting from the redefined axis the transverse sections are taken each 20 m or clouds of points, according to the existing conditions in the field. * Design parameters The road was designed with the following parameters: Mountainous terrain - precipitous Km74-km84 km44-km5O Undulating terrain kmO-km44 km5O-km74 km84-kml 06 Design speed: km74-km84 50 kph kmO -km74, km84-kmlO6 80 kph Right of way 60 m Roadway 7,30 m Sidewalk 2,00 m (general) 1,80 m (Haitises) Shoulders 0,50 m (paved) Maximum slope 6%. Haitises 6.5% Minimum slope -/+ 0.3% Roadway's normal pumping 2% Minimum radius 260 m in general 135 m in mountain Convex vertical curves 35 m Concave 30 m At Haitises 15 m 19 * Typical Section The typical section consists of a crown of 12.30 m in general, conformed by two lanes of 3.65 m, two sidewalks of 2.0 m and two shoulders of 0.50 m, paved. At the cut's stretches a curb of 0.60 m is designed at the base. In Figures 3.2 to 3.6 there are typical sections of the road presented. 3.2.2 Traffic Estimates The traffic study for the road (Integral, 19) presents two clearly defined stretches: the first one of them, from km 0 to 40 and the second one, from km 40 to the final point at kmlO6. For the start of the project a daily average of 4,400 vehicles, of which 2,100 correspond to automobiles, 140 to buses, and the remaining ones to trucks. The final estimate, for the year 2035, is of an estimated traffic of 16,695 vehicles. Table 3.1 shows the traffic estimates for the first sector. Table 3.2 shows the estimate for the second stretch, which shows 2,000 vehicles in the starting year, of which 1,500 correspond to automobiles. Table 3.1 Daily average traffic projected volumes- km4O) Year 2002 2005 2010 2015 2020 2025 2030 2035 Category Automobiles 2,100 2,457 2,989 3,637 4,424 5,383 6,549 7,968 Buses 140 164 199 242 295 359 437 531 Trucks 560 655 797 969 980 1,435 1,746 2,125 Table 3.2 Daily average traffic projected volumes (km4O-kmlO6) Year 2002 2005 2010 2015 2020 2025 2030 2035 Category Automobiles 1,500 1,775 2,135 2,598 3,160 3,845 4,678 5,692 Buses 100 117 142 173 211 256 312 379 Trucks 400 468 569 694 843 1,026 1,246 1,518 3.2.3 Altitude Profile The road starts at 10.66 mosl in kmO+040 an its reaches its maximum height in km63+480 in the elevation 304.65 mosl and in kmlO5+360, it meets its minimum elevation, in 0 mosl. In km 106+0.20, at the end of the road it meets in 3.17 mosl. Figure 3.7 shows the altitude profile of the road.. 20 Figure 3.2 Typical Section Lot 1 21 CARPETA ASFAITICA -=0 10, B.ASE GRANUUR E0 25-80 C86 >= 80% SUB-BASE GRANULAR -0 30-. CER >- 40% CAPA DE CORONACION e0.40m CBR -= 20% DETALLE DE PAVIMENTO EJE 12.30 7.3 266 003 .5 605 0020 0 6(o0 4 OX 2.0 ~ ~~~~~~~~~2. 0 .0 4.0X TELA D0FLAT SANTETCA T6800 0 EOUCIALENTE COLOCOA SOLO ENTRE K7+600 - K10+000 SECCI6N TIPICA EN RELLENO LOTE 1 t EJE _____ ____ ____ ____ _____ ____ ____ ____ _____ ____ ____ ____ 12.30 ________________7.30 i.. 8COERMA PASEO PASE0 8ERMA/ 20% 2~0% 40 \ ;-~~- 2-- ''''9//. 2.0%40 40X % SECCI6N TIPICA EN CORTE K CUNETA LOTE 1 CUNETA FIGURA 3.2 SECCION TIPICA LOTE I I Il Figure 3.3 Typical Section Lot 2 22 CARPETA ASFALTICA -=0 10, ,5E GRANULAR e=0 25T. CUR .= 806 SU8-8AE CRANULAR e= 3,,. - ~~~~~~~~~~~~CBR > 406 CAPA DE CORONACION e-0.40-. CBR >- 20% DETALLE DE PAMMENTO t EJE __~~~~~~~~~~ 730 O SO 2.00 3.65 3.65 2^0 0^c ¢.5 BCRMA PASCOl .PASE - E, 4 OX 2.0% 2 X4.0X 2 ',- .''^'''^' 2 o IX SECCI6N TIPICA EN RELLENO I\. DESCAFOTAR LOTE 2 \ \ 2 ESAIZA CON SUEL /_CAL 3e_ 030m -3 COLOCAR PEDRAPLENHN 050,,...... _ EJE 12 30 7.30 250 .150X 200 3.65 .0 050 2.50 eER4AI PASE3 PASEO BERNA FIGURA T3.3 SEC EN CORTE C.NETA-LOTE 2 I DESCAPOTA -------------------------LT-2\CUNETA \ .. £STABIZAR CON, SUJELO /CAL 36 0 030,, \_3._COLOCA2R PEDRA7LENH =00, FIGURA 3.3 SECC16N TWPICA LOTE 2 I Figure 3.4 Typical Section Lot 3 Page 1 of 2 23 CARPETA ASFALTCA e=0 1o, BASE GRANULAR 0 25,,,. CBR 4= 80% SUB-BWSE GRANULAR e=0 30, CBR -= 40% CAPA DE CORONACION -0 40m, CBR >= 206 DETALLE DE PAMMENTO ______ ______ ______ ______ ______ ____ 7 .30 __ _ _ _ _ _ _ _ _ _ 050 200 365 365 2.00 0,50 6ERMA PASEO PASEO BLRMA 4 06 2 OX 2 0X 4.0O Tr='A' , . 0T SECCION TIPICA EN RELLENO K29+295.31 - K36+500 LOTE 3 ESCALA 1:50 CUNETA ~~~~~~~~~~~~SECCION TIPICA EN CORTE CNT K29+295.31 - K36+500 LOTE 3 ESCALA 1:50 TABLA DE TALUDES BERMA PASEO PASE~~ ~~~~~~~~~~~~~~OT TERAMCOT RELN Ei0 2.0% 2.0%~~~~~~~~~OE3 BE491-9.1 L66--0.0 FIGURA 3.4 SECCION TfPICA LOTE 3 HOJA 1 DE 2 Figure 3.4 Page 2 of 2 24 m m m ~~~~ UCARPEA ASFALTIC o-0.1Om B1SE RANUILAR -0.20m SUB-EASE GABULAR e=0 30-. CAPA OE CORONACKN. -=0 40 __ ~~CBR >- 20S DETALLE DE PAVIMENTO 050~~~ 200 265 ~~~~3.65 2.00 050 ERIM PASEO | PASEO BERMA 2.O2X --.o |~~~~~0 I - D, . == SECCI6N TIPICA EN RELLENO K36+500 - K50+000 LOTE 3 ESCALA 1-50 OBSza ' 365 7 30 ' .. -s r\ ....... _ 2.00__ ~~~~~~~~~~~~~~~~~~~~~~3.65 3585 2.0 1°°250 .i.... >s.' \ERMO A5EO PASEO BERBA F 20% 00% 0~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ %T CtINETA SECCION TIPICA 2 EN CORTE 2 K36+500 - K(50+000 LOTE 3 ESCALA 1:5O TAELA DE TAWDES TALUD TALUD TALUD LOTE TRAMO CORTE RELLENO INTERIOR I I ~ ~ ~~~~~~~~I (TO) (To) CUNETA (TI) LOTE 3 DEL K36+500 00 AL K50000.O 3 2 2 FIGURA 3.4 SECCION TIPICA LOTE 3 HOJA 2 DE 2 I I Figure 3.5. Typical Section Lot 4 Page 1 of 2 1 i i I i i i i 1I i i i i I i i I i i j I i i i i i i I i 25 I CARPETA ASBALnCA o-O I0m -. BAE GRBBULU 2-O0, CBR >- BO% SUB-BAE GRASUL A-U 30A,. .. . .CBR - CAPA DE CORONACON r-0.0m. CBR > 20% DETALLE DE PA1MENTO 7, 1230 - 2.0 - ----- -- - 3.5 Z00 O.50 BERMA PASEO PASEO BERMA 2.0% 2 0% % / _ _~~4.0 - _ 40 ==%~_o SECCION TfPICA 1 EN RELLENO 1 K50+000 - K74+000 LOTE 4 2 00 BERMO PREOCPOO E CUNFTA SECCI6N TtPICA 2 EN CORTE 2 CUNnA K50+000 - K74+000 LOTE 4 FIGURA 3.5 SECCION TiPICA LOTE 4 HOJA I DE 2 Figure 3.5 Typical Section Lot 4 Page 2 of 2 26 CETA AYA -A O 0,.- . . .BASE GRAMOUl R 2-03 CBR> BOB ' . ' . .,, , ' ' A' ~~~~~suo-EaSE GRANUI e-o 30. WAP8 0E CORNAaSN .3.40m. CBR>- 20X DETALLE DE PAVAMENTO 7.30 nrn. ner 3.65 3 65 ; 80 OM 800040 POSEO P83EO BEROB 2.0X 2 0% .0X SECCION TIPICA 3 EN RELLENO K74+000 - K84+000 LOTE 4 305 365 080 050 30 t ,,, ., n I 7~~ ~ ~ ~~~~~~~~.50 I.S 1,8 3.tS36 .o I .G255 ,>,,,,, .~1 BERM- PSEO2 PSiEO '3ERMA E EV _ _ \ xN __,,_,,,.__-___,__\: SECCION TIPICA 4 EN CORTE cu0E7A K74+000 - K84+000 CONETA LOTE 4 FIGURA 3.5 SECCION TIPICA LOTE 4 HOJA 2 DE 2 - ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Figure 3.6 Typical Section Lot S (Page I of 1) 1 ~ ~ ~ ~ ~ ~ ~ _I CARPEUA ASrALTICA eO.lOAm. _ASE GRANULAR -=0.20m . ' E . . .. ~~~~~~~~CAR >= 802 SUB-BASE GRANULAR e=0.30-. BCR >- 40% CAPA CE CORONACION s=O.40m. DETALLE DE PAVIMENTO EJE _ - OVAR ABLE 12.30 VARIABLE VARIABLE 7.30 BEU 1 2.00 3.53,65 ED0 l EM BERW RASEO PASEO AERMAI MINIUMO 4.0X2 2.02 4 OX l §40b MINIMO CANAL DE rCANAL DE ORENAJE DRENAJE __________ ~~~~1 5 01.5 1.5 W ' r / <- < g ; . S *0./ . 11 \ REMOVER MATERIAL EXISTENCE II W E CE FILTRO SA CECAIL2Th CO PEOA.LE I TERREN O NAR A L CWALENTE CUA8DO 0 TG 800 0 [QOVAL-ENTE ABSCISAS h(m) (n DEL K83+910 AL K84+800, DEL K87+000 AL K87+850 0.50 1.00 DEL K88+750 AL K89+100, DEL K90+330 AL K91+950 0.AO 1.00 DEL K89+100 AL K89+300 _ - 1.0 3.00 DEL K89,300 AL K89+500 _.SO .00 DEL 1(92+70 AL K92+927. DEL K83+525 AL K93+750 0.6 .00 DEL K93+875 AL K94+650, DEL K94+700 AL K95+200 O.m0 00 SECCION TIPICA 1 NUEVA UEJ 6.6 BERW PASEO B RE ERMA CARRETERA AMPLIACION AVEVO EX,STENTE TERRAPLEN M.0== __ 2 _ ,, 2.0%,_ 2.02 / _ 4.02_ 2 , - ____==_ _ . --- - = ----------=- - . ---=- --- -~t|sU _-_ < ___ _____________ . _ _ _ _ __________________ | ' , l CANAL CE OREBRIE ..--- - . - MO RELO~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~2 11CAUIZADO TERREN NA T F__ R ____-'.. X REMOVER MATERIAL EATENTEA.CE RE_E \ELA CE FILTRO SJNTETICA ' REEMPLAZAR CON PEORAPLEN EXISTENTE TC 880 O EWULALENTE ABSCISAS (-) (0) DEL K84+800 AL K87+000, DEL K87+850 AL K88+750 0.50 I 00 DEL K89+500 AL K90+140, DEL K91+950 AL K92+700 001 00 DEL 092+927 AL K93+525 DEL K93+750 AL 09397:506i.00 DEL KE4+650 AL 094+700p DEL K95+200 AL K96+700 TOAO 1.00 DEL K96+700 AL K96+970 2.00 3.00 DEL K98+970 AL K100+610 O0A0 1 00 SECCI6N TIPICA 2 EN AMPUACION FIGUPA 3.6 SECCION TiPICA LOTE 5 HOJA I DE 2 l * * S gI | |I I Figure No. 3.6 Typical Section Lot 5 (Page 2 of 2) 28 -~~~~ EBPS SALIEBC .-U O*- BAE GBAUlLAS -0.20-, SUB-BASE EBANULAB C~0.30~~ DA E O CUOUBNCION *OAO, : R - 20% DETALLE DE PAVIMENTO ESCALA 1:10 FJE BEB. PASEO AE E * 402 1 2.0X 2.0X ___40X SERAA ETSBBAIOAUOA S. . . _ .- - 2 SRABBB E5TASI 12AOORA CU.ETA BE BEBE.L-.E7 &A BE CUENJET D <|UB |//DENAJE f~~~~~ S 1=L5 / ,,,,=_=_=___=__,,___, .__15I1 -- '' F2 \* --X_ --__4-- l l /ALT~~~~~~~~~~~~~~~IURA TOTAL DE EB\BEAC VAT REBUEBPLASA -in:', EONN _ VARIA9LEE\ TBBCAPLCEN GRANULAR EONFATD CUANDO h S0BDm MAUN JO SELU PRO1ORSIUO SEAD AASBISAS i,) | DEL K1034800 AL K1<03+-SOO ABOj DEL K(103+900 AL K<104+400 O DEL K1104+400 AL K1<05+500 000 DELK 1<054500 AL Kt | W 4 X + 0 0 500 1000o 1- - 21000 2500 r 4450 I I I ____________ _ SIALA 250 tSCH 4450 7.DO l t F l , l t 7.00~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 5 5 ; 0 2 |___________________ __________ 4n ESCALA 25 V , , NSI ANCS ,ABSCISA ELEVAC16IN --1 ----AIILN EN METROS I _ _ _ _ _ _ _ _ NMTO I PLANOS DE REFER NC A| 675 14D 0 5LT5 Al PERF L 3 145A K1 020 1 76 9DG7LT5 E M 25 DE 2 0 ___________ ___________ ___________ ___ ___- I 1 t 7750~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~775 4000 _ _ _ I_ 4000 RASANTE DE DISE80 DEL TERRENO jS O 10 1 200 50ro _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 _ _ _ _ I _ _ _ _ _ _~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~9 1~o t~O20020 | t 9 | | | | * ESCALA 1:250C H [ i t t - 0 0 0 ' ' ' C 2; OC 7S 1-OO- ;25 ;;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~02 50)5 10 2 LOTE 5 K83+914.50 AL K1 6+020 ESCALA 1 125 ABSCISA ABSCISA COnso,cif, 5000401504 ~ ~ ~ ~ ROB6 000150 400IFl0ACl0NES~~~~ ESOA+0 440540+0- FICACLONEECPROYECTO L SECRETARA DE E~~ ADO Consomo R JAPR4. A00ENAO- CA LMOD 2AAEOJ0.SCALS002101 A 2000FS0DOIGOCTHI DE OBRAS PUBLICAS Ao e , INARSA - 7ECNOAMERICA EODSUROr4O ESPEbonasO 04M40 40-OoM.0 ZokALD0O1 AD- coo lmjJ-QPR-EJN-IR~ 2 0 o 1250F CARRETERA SANTO DMNOET IODE IMPACTO AMELENTAL 0Ct0br. d, 2002 2 E2 C CAO r lanto | SE80 aPBuJO. AOis0s - NTT CRUCE RINC6N DE MOUINILLOS PERFIL ALTITUDINAL DE L VIA FIGURA | RepbilOcaDommicana I I RL P. TARAZONA S | A 004-02 REPOBUCA DOMINICANA 3.7 COMUNICACIONES I IZ~~~~~~~~~~~~~~~~~~~~~~~~~~~~0 . 3.2.4 Drainage Works Construction of 14 bridges has been contemplated for the road, as well as the reconditioning of the bndge over the Yuna River (km90+ 147), this bridge is 167 m long. All of these bridges have a bidge clearance of 5.5 m. For the superstructure, the structural system was selected according to the clearance dimension of the bridge, as follows: * For clearances greater than or equal to 20 m the bridge deck of the bridges is supported on prefabricated, pre-stressed in situ concrete beams and subsequently hoisted. * For clearances under 20 m., the bridge deck of the bridges is supported on reinforced concrete beams fabricated at the final site. Table 3.3 shows the list and the main characteristics of these bridges. Table 33 List of the road's bridges Abscissa Bridge's name Type of Length (m) crossing Km8+ 160 Carretera Mella Intersection 30 km8+474 Arroyo el cach6n Fluvial 40 k14+898 Marucho Fluvial 40 kml 5+250 Yabacao Fluvial 30 kml 5+840 Cafio Nuevo Fluvial 15 km36+275 Carretera Monte Plata Interseccion 40 km39+500 Socoa Fluvial 35 km43+450 Carretera a Ant6n Sanchez Intersecci6n 15 km59+560 Puente Gonzalo Fluvial 25 km83+602 Guaraguao Fluvial 25 km87+984 Dren Mayor Fluvial 15 km89+893 Dren Cascarilla Fluvial 15 kmlO4+300 Dren Parcelario Fluvial 20 Other minor drainage works are conformed by pipe and box culverts of different sections, whose location and characteristics are shown in Annex A. A total of 164 works have been a projected. In is worthwhile to emphasize as important sites, the site of Laguna Clara, at km22 + 600 to km22+800 and at kmlO4+500 to kmlO5+500; at the Rinc6n del Molinillo a series of works has been proposed in order to guarantee an adequate hydraulic link from one side of the road to the other, in order to prevent erosion phenomena and drainage problems in any of the two sides. 3.2.5 Infrastructures and Intercepted Services Table 3.4 shows interferences with the existing infrastructure. Annex B shows interferences of the road with rural roads and farms entrances. 31 Table 3.4 Interferences of the road with the existing infrastructure Abscissa Interference Observations kmO+000 Intersection with Autopista Las Americas It will be done through a leveled Intersection. kmO+000 Main aqueduct pipe that goes towards Santo 30" Pipe Domingo. k8+160 Intersection with the medium voltage electric power line of 34.5 kV. km8+160 Intersecci6n con Carretera a Mella. It will be done through a bridge km36+275 Intersection with Road to Monte Plata. - Bayaguana It will be done through a bridge km36+250 Intersection with the low voltage electric power line, It requires relocation. of 13.5 kV. Km36+275 Intersection with the medium voltage electric power It requires relocation line, of 34.5 kV km43+450 Intersection with Road to Ant6n Sanchez. It will be done through a bridge 90+000 - Intersection with the medium voltage electric power It requires relocation 100+000 line, of 34.5 kV. km85a km9O Parallel to current cart road there is a 12" aqueduct It requires relocation pipe. km87+984 Intersection of the Main Drainage of the Aglypo It will be done through a bridge Irrigation Project system. km89+893 Intersection of the Lot Drainage of the Aglypo It will be done through a bridge Irrigation Project system. km89+500- Interference with telephone lines It requires relocation km89+900 km89+500 - Intersection with the medium voltage electric power It requires relocation km89+900 line, of 34.5 kV. km9O-km 96 There are three pump houses of the irrigation It requires demolition and system. . relocation km95+347 Crossing works of the Aglypo irrigation Project. It requires demolition of the km97+675 They are recently built structures blades, extending the header, and kmlOO+182 constructing the blades. kmlOl+595 km96- Channels of the irrigation system It requires relocation km1O5 km 104+300 Intersection of the Cascarilla Drainage of the Aglypo It will be done through a bridge Irrigation Project system. 3.1 32 3.1 TECHNICAL ACTIVITIES OF THE PROJECT 3.4.1 Preliminary Activities They include previous initial aspects to technical engineering works per se, and they include the following: * Previous studies: They are in their final stage, which include design studies, property studies, and this report is part of them. * Land acquisitions and improvements: SEOPC is in charge of it, and it includes the acquisition of a total of 809 pieces of land, as follows: - Lot 1: 118 pieces of land. - Lot 2: 60 pieces of land. - Lot 3: 32 pieces of land. - Lot 4: 239 pieces of land. - Lot 5: 360 pieces of land. The urban properties add up to 379, and are broken down by lots in Table 3.5. Annex C shows the pieces of land inventory. Table 3.5 Affectation to urban properties Town Name Initial Final Observations Abscissa Abscissa Batey Nuevo km57+680 km57+850 Contemplates properties 21 to 30 - Stretch 4 Batey Carmona km59+150 km57+410 Contemplates properties 32 to 51 - Stretch 4 Batey Tarana km62+210 km62+410 Contemplates properties 64 to 73 - Stretch 4 Majagual km73+050 km75+550 Contemplates properties 106 to 149 - Stretch 4 Lim6n del Yuna km89+900 km9O+170 Contemplates properties 1R to 1 IR, 19R, and 45R La Raya km9O+290 km9O+450 Contemplates properties 48R to 52R La Raya km92+580 km92+750 Contemplates properties 12R to 18R Los Platanitos km93+540 km94+750 Contemplates properties 80R to 108R and IP to 28P La Mata del Aguacate km95+000 km96+700 Contemplates properties 36P and 37A to 87a La Mata del Aguacate km96+720 km97+600 Contemplates properties 87A to 97A and IC and 15C Cuba km97+950 km99+950 Contemplates properties 18C to 207C 3.4.2 Construction Phase It covers all aspects directly related with the construction activities, and it follows all ofthe SEOPC'S M-014 general specifications for roadway construction, which comprise the following activities: * Labor contracting: The personnel required for the construction is defined pursuant to the requirements of the front, and prior to starting the activities. It is 33 estimated that the following personnel is required, with an estimation of eight construction fronts: - 1 Head Engineer (per each two fronts) - 1 Resident Engineer - 1 Mechanical Engineer - 1 Quality Control Engineer. - 1 Control Engineer for work quantities, budget, and programming. - 1 Professional partner - environmental (1 per each two fronts). - 1 Administrator. - 1 Warehouseman - 1 Industrial Safety Chief (per each two fronts). - 1 General Inspector. - 1 Work of Arts Inspector. - 1 Pavements Inspector. - 1 Dirt Moving Inspector. - 1 Laboratory worker. - 2 Laboratory Assistants. - 10 Machinery operators. - 25 Drivers. - Topographic Commission (6 persons). - 1 Secretary. - 25 unskilled workers Which makes a total of 82.5 persons per front, for a total of 660 temporary jobs, during the construction In addition, the following personnel is required for constructing the bridges: - 1 Head Engineer. - 4 Resident Engineer. - 4 Topographic Commissions (24 persons). - 4 Soil Laboratories (16 Persons) - 28 Machinery operators per bridge - 14 inspectors per bridge - 1 secretary - 140 workers Therefore, around 196 persons are required for constructing the bridges. This means that the construction stage of the road will generate a total of 856 jobs. * Adaptation and operation of machinery yards: These are sites destined for parking machinery at night, which normally have equipment maintenance shops, both for vehicles and for heavy machinery, thus they have a machine shop, fuel deposits, and lubricant oil storage. 34 In these shops normally there is liquid waste produced, such as burnt oils, fuel losses, brake fluids, (acid oils), solid waste collection, such as scrap, burlap office paper, and cafeteria or restaurant waste, as well as sanitary residue from people who work in such shops. A machinery yard is required per construction stretch as minimum. * Machinery Operation: It is estimated that the following machinery will be required, although the specifications depend on the constructors: - Dump trucks for transportation. - Tractors. - Bulldozers. - Loaders. - Motor Graders. - Backdiggers. - Compactors - Pneumatic hammers - Milling machines. - Compressors. - Hydraulic concrete mixers. - Electricity generating plants. - Vibrators. - Minor equipment Operating this machinery generate noise and gaseous leaks, which will be analyzed at the chapter of impacts evaluation. * Cleaning, clearing, cutting trees: It consists of cleaning, clearing, cutting down trees, clearing, eliminating and removing all vegetation and waste within the project's corridor. * Excavations and cuts: Mainly classified as rock, unusable, unclassified material, and borrowed fill. Depending on the particular characteristics of the materials cut, it may be used for fills for embankment or be disposed of at sites defined within the corridor or the garbage dump. The slope cuts have been designed as follows: - Lot 1 Slopes 1:1 V:H. - Lot 2 there are no cuts. - Lot 3 Slopes 4:1 - Lot 4 the area of Haitises slopes 4:1, with banks two m wide each 10 m of altitude - Lot 5 there are no cuts. 35 * Transportation of materials: It comprises transportation of materials from the sources and asphalt plants up to the construction sites, and from the site of the cuts up to the surplus material sites of disposal. * Exploitation of materials: The sources to be used in the project are required to supply materials for the filler, crest layer, sub-base, base, asphalted concrete and works of art. Figure 3.8 shows the location of the sources of materials, and Table 3.6, shows the relationships of such sources, which are currently operating. * Disposal of materials cut: It consists of the final location of waste cuts that cannot be used as fillers. Since the law allows sites to be used at the contractor's discretion, authorized by the owners of the properties, the specific disposal sites have not been determined yet. However, in the Environmental Management Plan Chapter there are important details shown regarding handling such materials, in order to prevent serious environmental impacts that could be generated trough this activity. Table 3.6 Source of materials Lot Type Asphalte Granular Granular Sub-grade Embankme No d Base Sub-base Improved nt Concrete 1 S Trinidad Bocachica Bocachica San Isidro San Isidro 0 II 2 U Trinidad Bocachica Bocachica San Isidro San Isidro R II 3 C Trinidad Trinidad II Sabana Sabana Sabana E II Grande de Grande de Grande de Boya Boya Boya 4 Trinidad Trinidad II Sabana Sabana Sabana II Grande de Grande de Grande de _ _ _Boya Boya Boya 5 1 1 Civilcad Civilcad Civilcad Civilcad Civilcad * Forming embankments and the bank: It consists of placing the compacted material that elevates the road with respect to the surface of the natural terrain, specifically in the low areas. In this areas there is a an embankment talus of 1:2 left. This activity can generate problems of generating sediments to the natural drainage; in addition, and more significantly, a serious drainage alteration. * Base and sub-base construction: It consists of extending the embankment and placing such layers. To that effect, it requires compacting with heavy machinery and use of borrowed filler. There can be solids contributed to the natural drainage 36 during this stage, but there are solids contributed towards the atmosphere, in a greater proportion. * Constructing drainage works: These activities include constructing minor works such as sewers, box structures, which were described before. This activity can contribute solids to the drainage system. * Constructing bridges: Reinforced concrete bridge abutments were chosen for the infrastructure, with fence walls and caisson type foundations, with diameters between 1.4 y 1.5 m and lengths between 12 and 15 m. This produces some excavation mud, subsequently, a steel frame is introduced and concrete is injected. For the bridges of the Cach6n and Marucho streams, there will be self-fluxed boxes made, of an area of eight m long, four m wide, and 8 m deep, which requires a lot of dirt moving from the excavations. 37 I Figure 3.8 Location of sources of materials 38 This activity presents impacts far more important than the aforementioned activity, since it requires adapting and clearing a lateral area at the bridge's site, including a small work camp for prefabricating beams. There will also be works constructed for protecting banks. This activity can cause serious environmental effects, especially regarding the sediments contribution to rivers, but also from house sewage, greases, as well as waste materials considered hazardous, which are welding tailings. * Asphalt plants set-up and operation: It is foreseen that the asphalt will be set- up in some of the sources of construction materials, which allows to minimize some of the environmental impacts generally produced, such as cleaning and clearing. However, this activity generates impacts on the air quality, such as a series of atmospheric emissions, including solids and gases (SO2, NOx, CO). * Placing the wearing surface: It implies paving the already formed or compacted bank. This activity implies a first priming with liquid asphalt and subsequently applying an asphalt layer. It can contribute solids and hydrocarbons to the natural drainage system. * Demarcation and road signs: It consists of placing traffic signs required for the safe operation of the road, and painting the signs required on the pavement. 3.4.3 Road Operation and Maintenance Phase Once the road starts its service, three activities will be present, which could generate environmental and social effects, that can be both positive and negative These activities are: * Tollbooths operation and collection: This activity implies permanent operation (24 hour service) of toll personnel and offices, including, therefore, washrooms and toll collection. Three groups of tollbooths are required, located at the following abscissas: km 7+900 km36+900 km84+500 This activity requires the following personnel * 1 Administrator. * 1 Secretary. * 2 Supervisors. * 6 Collection clerks * 2 Security guards 39 Therefore, 12 persons are required to operate each tollbooth, for a total of 36 persons. * Traffic circulation: In corresponds to transit of vehicles through the road. This transit has the following main environmental affectations: noise generation, atmospheric emissions of gases, and possible running over the fauna. * Road maintenance: The activities related to road maintenance imply some dirt and asphalted concrete movements, and the possibility of generating solids and hydrocarbons to the natural drainage system, possible affectations from vehicular traffic, and some atmospheric pollution. These activities imply the presence of: - 1 Road administrator. - 1 Road inspector - Drainage works maintenance crew (20 persons). - Clearing and cleaning crew (20 persons) 3.1 NATURAL RESOURCES DEMAND 3.5.1 Water Demand The following water demands have estimated during the construction phase: * Water for human consumption: Water consumption estimation for this heading has been estimated, taking into account that personnel camps should not be required, on a total of 30 I/person/day, for a total of 25,680 1/day, of drinking water * Industrial water: Industrial waters required are the following: - Irrigation water. 32 m3 per front, for eight fronts per day, for a total of 256 m3/day - Waters to produce concrete = 80 m3 per bridge average, * 14 bridges = 1120 m3 total. During the operation phase the same 80 V/person/day are required, for the tollbooth personnel and the road's maintenance personnel, for a total of 6,.240 1/day, of drinking water. 40 Table 3.9 Estimated Budget Lot No. Cost (RD$) 1 186,615,760 2 373,231,520 3 373,231,520 4 634,493,584 5 410,554,771 Bridges and 21,487,795 Intersections Total Cost 1,999,614,950 3.1 WORKS APPROXIMATE TIMETABLE Work's construction must be carried out in 24 months. Figure 3.9 shows this timetable. 42 4. ENVIRONMENTAL BASE LINE 4.1 PHYSICAL ASPECT 4.1.1 Geospherical Component 4.1.1.1 Geology and Geomorphology Methodological Aspects The geologic characterization was based on the project's topographic cartography, scale 1:50.000. The location of each description point was attained through the GPS system. Each outcrop was described according to its stratigraphic, lithological, geomorphological, and/or structural characteristics, including the weathering and/or alteration level, karsticity, erodibleness, permeability, difficulty or easiness for the cut and removal, etc. In some cases, this information was extended with data taken from previous studies; and new data obtained from test pits and test drillings, based on geo-electrical exploration and seismic refraction programs developed for some bridges of the project. Electrical georesistivity measurements were also taken, which is a method whereby an electric current is sent to the substratum through two electrodes of current, and it generates a potential difference that is measured through two intermediate electrodes. This is how rapid information about the subsoil characteristics can be obtained. In addition, the seismic refraction meted was applied, in order to define the stratigraphic profile of the Mella Road and the Cach6n Stream, as well as the physical condition of the rocks and/or underlying sediments, as a function of the longitudinal waves propagation velocities * General geology Recent calcareous sedimentary rocks that emerged from the oceanic bottom ,in the last 200,000 years, are linked with calcareous clayey sediments, as well as to granular, soft organic, and red lateritic soils from a residual origin, to constitute the first half of the road's route, that is, the Santo Domingo-Monte Plata strip. From Monte Plata up to Sabana Grande de Boyd gray greenish volcanic rocks crop out, of which andesites and basalts stand out belonging to the Upper Cretaceous, and marly limestone belonging to the the Cevicos Formation. From Sabana Grande de Boyd up to Guaraguao, marly limestone and cavern reef limestone crop out that define the most extended and best developed karstic morphology in all the Caribbean Region. This area is known as Los Haitises, and it constitutes the most important National Parks of the Dominican Republic. This region of Los Haitises is characterized by isolated limestone domes, which are separated by depressions, dolines or drains that serve as the way for rapid infiltration of meteoric waters that fall over the area at a rate of 2,000 millimeters per year. This 43 explains the absence of surface rivers and streams, and the extraordinary volume of groundwater stored there. From Guaraguao up to the crossing of Rinc6n de Molinillos, there are only fine soils, generally soft and firm, that alternate with alluvial soil dragged by the river currents of the Yuna River. * Geo-morphological Units The following geo-morphological units can be observed in the area of the study. - Marine terraces Eight levels of calcareous marine terraces crop out along the southeastern coastline of the Dominican Republic, which are clearly exposed at elevations 3-6 masl, 8-9 masl, 16 masl, 30 masl, 40 masl, 50 masl, 67 masl, and 80 masl. All of these terraces were developed by the action of waves against the reef limestone that emerged from the oceanic bottom, this limestone has been classified as a remnant of ancient marginal reefs, with a internal lagoon facies. These calcareous terraces exhibit extensive coral banks, of which the following coralline species stand out: Acropora cervicornis, A. palmata, Montastrea annularis, Diploria strigosa, Porites porites and others. Within the group of marine terraces, hundreds of holes and caverns can be observed, which are the product of karstic solution. They will be dealt with when their position coincides with the road's route. - Alluvial plains Most of the area comprised between the Mella and Monte Plata Road is an alluvial plain conformed by marly limestone, sands, red lateritic soil from a residual origin, and small gravel deposits. Fine soils, with a very low permeability, prevail in the area, which contribute to forming small lakes during the rainy periods. This plain is the product of the deposit of marine clays, the subsequent erosion, as well as the transport of alluvial sediments throughout the area. It defines a soft relief, that -sometimes- is interrupted by small and medium size hills from a volcanic origin, where intense weathering processes have contributed to forming thick layers of residual lateritic soil, with a high content of ferric oxide that gives it an intense red brick type color. - Hills The strip covered between Monte Plata and Sabana Grande de Boyd is conformed by a sequence of low morphology hills. These hills are lithologically by andesites, basalts, tuffs, and pyroclasts; and, in a minor proportion, by reef limestone that is sometimes marly. Due to its greater resistance to the elements and to erosion, they 44 stand out over their neighboring plains, and are easily identified in aerial photographs. Inspection of the hills reveals that, in the past and also in the present, many of these hills have been exploited in the form of open cast quarries, in order to obtain granular and filler materials for roads and paths, both in the construction stage and the subsequent road maintenance stage. - Karstic or haitises domes The most important and more extended geo-morphological unit in all the area of interest is formed by a regular rhythmic sequence of cavern limestone domes and karstic drains. The majority of the domes have similar topographical elevations and very regular inverse conic morphologies. This karst is perfectly developed along the Majagual-Guaraguao strip, specifically between km65 and km77 of the road's route. The region of Los Haitises has a surface extension of approximately 1,600 square km, and with the exception of the Payabo River, that crosses the region from the south to the north, there is hardly any surface drainage. The greatest portion of waters is collected by the dolines and the solution cavities, to be included in a in a complex underground network. - Floodplain All of the Bajo Yuna area, from Guaraguao up to the Crossing of Rinc6n Molinillos, is a floodplain, dependent of the fluvial currents of the Yuna River, which is one of the longest and most important rivers of the Hispaniola island. Since this is a strip that is very close to the mouth of the Yuna River, the sediments transported to this point are generally fine sediments. Since this is the river's low basin, its kinetic energy is minimum, and practically it cannot transport thick granular materials, such as gravel. In this stretch, the rivers goes into a state of oldness that is evidenced by the great amount of wide meanders, some of them still active, while many of them have been abandoned, and can only be seen in aerial photographs. * Stratigraphy The following stratums were determined: - Basalts and andesites The regional basement rocks are conformed by volcanic rock deposits of a basic nature, of which porphyritic basalts, aphanitic basalts, andesite toffs, pyroclasts, aphanitic greenish andesites, and porphyritic greenish andesites stand out These last ones, although they look very weathered and partially altered on the surface, they 45 look very fresh under the weathering profile, especially at the Ant6n Sanchez quarries, where exploitation has removed most of the weathered material, leaving fresh volcanic flows exposed. * Without a doubt, most of these volcanic flows have a submarine origin. That is how is evidenced by the pillow lavas, in the quarry fronts, as well as the spherical blocks with an onion structure, typical of submarine volcanic flows. Brouwer (1980) considers that this basalt is conformed by well formed phonocrystals of calcic plagioclase and clinopiroxenes, where the olivine is replaced in 80% to 90% by serpentine. - Cevicos limestone The name Cevicos limestone comes from a community with the same name, belonging to the Provincia Sanchez Ramirez, since that was the place where it was found for the first time in 1919. It was described as reef limestone, yellow to cream color, with small nodules and a great amount of badly preserved fossils, which have been used to assure it the Lower Miocene age. Some authors are of the opinion that the Cevicos limestone was deposited over the regional basaltic basement rocks, and that suffered almost no deformations or folding. This correlation can be seen in open quarries at the East of Sabana Grande de Boya, where some fronts exhibit basic volcanic flows, while other fronts show a yellowish limestone. - Cevicos Limestone Inside the 1,600 km2 occupied by Los Haitises, there is large surface strip of approximately 1,000 km , which is conformed by thick deposit of karstic limestone and marly sediments belonging to the limestone of Los Haitises, accumulated over the Cevicos Formation. Generally they are massive limestone, although in certain areas they show thin layers or horizontal or lightly inclined stratification. The karstic phenomena - such as dolines, uvalas, karstic towers and underground rivers - are extensively distributed throughout these limestone, that is why it is considered that the region shows the best developed Karst in the whole country. This formation constitutes the main aquifer of the area with a precise karstic flow. The compact and sometimes marly nature of the underlying Cevicos Formation could perform in some places the function of an impermeable base for the karstic limestone aquifer of Los Haitises. Abundant rainfall is recorded in all the area of Los Haitises, reaching 3,000 mm/year, with an underground flow typically karstic in nature ,and with fountains of a tectonic origin that rise at the foot of the escarp of the extension of the Hispaniola fault. It is assumed that an important part of the underground water flows toward the sea in the eastern part. Along the fault that defines the northern limit of Los Haitises, rise numerous fountains, each of them could give birth to an independent karstic 46 system, probably not related to the others, before reaching the fault's plane. Previously, these springs rise above sea level, but, due to the characteristics of karstic springs, which is that elevations decrease with time, currently they surface below seal level, which allows to form a dense population of mangrove swamps. The analysis of the piezometric levels of the two wells located in the area allow to obtain a slope of 1.2% which is considerable for karstic aquifers. It would be logical to assume that the slope moderates towards the source of the streams, as a consequence of the increment in transmissibility in the fault's area. However, this condition is not met, since the remaining height-distance relation to the streams gives a more pronounced slope flow. This is an indication of a flow through a thin layer, or through a karstic system. Aside from the flow toward the North, small quantities of underground waters rise at the foot of the limestone outcrops of the East, recharging the alluvium aquifer in the Valley, as well as to the West and along the Payabo River. The region of Los Haitises was divided into three subareas for the recharge calculations: one in which the recharge for all the area is 710 mm/year; another, of 600 mm/year; and the last one, of 1,000 mm/year. Part of the northeastern boundary of the Cordillera Central drains toward Los Haitises, adding around 400 mm/year to this aquifer. All of this provides a recharge volume of 269 millions of m3/year, obtaining a total flow towards the streams of 265 millions of m3/year. - Recent Reef Limestone The area comprised between the City of Santo Domingo and Boca Chica is formed by two types of limestone. Here, the reef limestone is dominated by extensive well cemented coral banks, of which the following colonies stand out Acropora cervicornis, Acropora palmata, Montrastrea annularis and, to a lesser proportion, Diploria sp, that outcrop mainly in the strip comprised between the Caribbean Sea and parallel 2047000 mN. The reef limestone -hardly cemented, sometimes very marly, white to yellowish cream color- is located mainly towards the northern area, covering the northern half of the San Isidro Air Base. In many places, it is covered by a reddish color lateritic soil, from a residual origin. At the south strip of parallel 2047000 mnN, the coral colonies are completely cemented by calcic carbonate coming from the precipitation of calcareous elements contained in sea water, and the partial leaching of calcic carbonate contained in the coralline structures. The surface relief of this limestone is generally soft and cavernous, with depressions in forms of karstic dolines or drains. It becomes coarse as it reaches the coastal escarped reef, exhibiting strong effects of differential dissolution. When it gets closer to coast, at the surface, it forms what is referred to as "dog teeth" ("dientes de perro"), due to continuous battering of the waves and the tropical climate where the rock is located. All of the coast line is a steep reef that varies between 3 and 10 m. above the average sea level. This coralline limestone shows excellent physical conditions, it is very 47 "hard" and resistant, with sub-horizontal stratification, in layers that vary between 40 cm y 3 m approximately. It is creamed-colored, although it is seen exactly as red, due to the presence of ferric oxide. Coralline limestone are very resistant to erosive processes generated by continuous sea swell; however, at least within the human life scale, currently the persistence of the battering of the waves, along millenniums and scores of millenniums, have caused severe undermining at the foot of the coastal scarp. These effects are more notorious where the sea swell hits with greater frequency. When mechanical erosion is combined with chemical solution, the result is the advancement of the sea into the dry land, although in a quasi-underground way, that is why multiple dissolution cuts can be seen along the coast, leaving the costal surface overhanging or in cantilever. Likewise, within the costal strip it is possible to record important planes of parallel or sub-parallel fractures on the coast line, some around 20 m to the south of the shoulder of the road. Fractures in the coast line have been generated by the tension produced by the weight of the rocky mass that is overhanging. They are responsible for the landslide of multiple blocks that accumulate at the foot of the escarpment, and act as natural seawalls, in addition to forming small bays. * Seismicity The Dominican Republic is located just at the northern edge of the Caribbean Plate, in a strip where the North American Plate penetrates under the Caribbean crust in a continuous subduction. This location constitutes a seismic high risk territory, which obligate us to take all engineering precautions in view of the possibility of a close earthquake of great magnitude. The devastating earthquakes that occurred in 1562, 1783, 1842, 1887, 1904 and 1946, as well as less important ones that have occurred during the last 500 years, destroyed important Dominican cities, mainly in the North and Central Region of the country where households are erected over clayey and sandy ground. They also caused severe damages to many of the buildings constructed in the colonial area of the Capital city. The large earthquakes that occurred at La Hispaniola between 1842 and 1946 were set apart by 59, 45, 17 and 42 years. After 56 years of the last of these disasters - occurred on August 4, 1946 - it can be expected that, in a relatively short time, the island will be affected by a strong earthquake. Due to the very high seismic risk that the country is faces with, constructions of important road works, especially large bridges, require that such bridges are designed to withstand earthquakes. That is why it is essential to establish this as a prerequisite for important works, that, within the geotechnical studies, a horizontal and vertical zoning of the subsoil is included, through geophysical methods. The purpose is to learn with a greater approximation about the soil-structure interaction, define the behavior of the subsoil in view of the eventuality of an earthquake, and to be under 48 the conditions of applying the corrective measures applicable in order to reduce the risk of the structure collapsing. The Hispaniola island is crossed from the northeast to the southeast by eight large regional faults that divide it into four important fragments of plates, described in the following order of importance: - Northern Block Integrated by the Cibao Valley, the Samana, Bay, the Septentrional Mountain Range, the Peninsula of Samana, the Atlantic Coast and the northern insular slope, it is the block that registers the largest seismic activity of the whole island. This is the area where the most devastating earthquakes suffered in the last 500 years occurred. The map of the earthquake epicenters occurred at La Hispaniola between 1900 and 1973 (Bowin, 1975) records in this strip around 105 earthquake with a magnitude higher than 4.6 degress in the Richter scale. Half of these tremors correspond to the Samana-San Juan River sector; and, naturally, all occurred at depths of 0-70 km., levels below the southeastern portion of the island (70-150 km.). Likewise, the large and catastrophic earthquakes of La Hispaniola, occurred on the years 1564, 1783, 1842, 1887, 1904 and 1946, had their epicenters at this northern block. It is important to underline that, within this northern block, most of the urban centers are located over clayey centers, sandy soils or mixtures of clays, gravel and sands, which can cause the effect of expanding the seismic spectrum, which is the product of the slow displacement of longitudinal and transverse waves through the soils. Without a doubt, this could be catastrophic for a great portion of the buildings that have been erected over these soils, especially those located over saturated sandy soils where liquefaction phenomena could arise. - Central Block At the time of analyzing the seismicity of the Santo Domingo-Samana strip, where the new highway will go by, the Central Block is of utmost importance. It is integrated by the Eastern Range, the Eastern Costal Plain, the Central Range and Le Massif Du Nord; and it represents a magnetic arch dominated by igneous and metamorphic rocks, covered along the Eastern Costal Plain by reef limestone of the Pleistocene period. This insular arch fragment started to separate from the American Continent and the end of the Jurassic period, maintaining its dynamism along the geological passage of time, with a movement towards the northeast of around 1,100 km of lateral displacement, such movement has lead this block to collide with neighboring blocks. The records that gather the seismic activity of the island as of the year 1900, show that there is continuous seismic activity in this fragment of the crust that acts as a microplate. This activity, that has its origin at great depths; partially due to the south- 49 north subduction produced along La Trinchera de los Muertos and the San Pedro basin, and, on the other hand, the north-south subduction phenomenon produced along the boundaries of the North America-Caribbean plate. Cities like Santo Domingo, San Crist6bal, San Pedro de Macoris, la Romana, Higuiey, and others with a lower population, are concentrated on the southeastern portion of this extensive block. Among them, the city of Santo Domingo is the zone of the greatest concern due to the proliferation of apartment buildings, located -many of them- in areas that have been hardly studied from the geotechnical point of view. - Sierra de Neiba - M. Noires Block: This block is formed by the Neiba Mountain Range, Martin Garcia Mountain Range, the Neiba Valley, the San Juan Valley and the Azua Valley, in the Dominican territory. Likewise, Le Chaine de Matheaux, Le Plateu Central and Les Montagnes Noires, in Hatian territory. This plate fragment is dominated by tertiary limestone partially cut by volcanic flows of the of the Eocene period. Although there was great dynamism in this block -at least until the Neogean period-, generating lateral uplifts and tears, currently it is presented as a block with very low seismic activity. - Southern Block This plate fragment is formed by the Bahoruco Mountain Range, the south peninsula of Barahona and the Beata hill, as web as the western extension of the Bahoruco, defined in Haiti as Le Massif de la Selle and Le Massif de la Hotte. The northern border of this block is defined by the Duverge-Presqu'ile del Sud normal fault, while in the western end is cut by the steep Easter Fault of Beata, which has allowed to show the regional volcanic basement rocks, which according to radiometric dating through the K/Ar method, has around 105 ± 10 million years. The dynamics of this micro-plate has been considerably reduced, comparing it with the dynamics of the Paleogene and Neogen periods, since history records few seismic events of importance related to the dynamics of this block. Table 4.1 shows the characterization of the main geological faults. Table 4.1 Characterization of some faults of the Dominican Republic Estimated Length of the Richter Name of the Fault Activity fracture (km.) Magnitude North Subduction Very High 3,500 8.2 Jamao - Camui High 100 7.5 50 Northern High 400 7.5 Hispaniola Medium 500 6.5 Hatillo Medium 35 6.5 La Guacara-Bonao Medium 100 6.5 Los Pozos-San Juan Low 350 5.0 Enriauillo-Plantain Garden Very Low 450 4.5 Nizao Medium 40 6.5 South Subduction Medium 350 6.5 - Seismicity along the Santo Domingo-Samana Highway The first seven km of the road's route (kmO+00 to km7+00) are formed by a cavernous limestone reef where compression waves travel at speeds higher than 2,000 m/s. Because of this, no damages are expected in the event on en important earthquake. From the neighboring area of the Mella Road, and towards the north, there is a clayey strip where compression waves travel at variable speeds between 500 m/s and 1,500 mi/s, depending on the consistency of the clays. The bridges over the Mella Road, the Cach6n Stream, and the Yabacao River will have their foundations on these calcareous clays, where eventually seismic amplification spectrum phenomena could arise. This peak acceleration of the terrain could be around 0.25 g to 0.35 g - in other words, approximately from 2.45 to 3.45 m/seg2 -, depending on the conditions of the soils, which vary both laterally and vertically. Along the road's route, the most critical zone from the seismicity standpoint is the Bajo Yuna, from Guaraguao (km. 77+000) up to the Rinc6n de Molinillo crossing (km. 105+990). The western portion of the Samand Bay is bordered by two large active faults, the northern border of this alluvial plain is defined by the northern fault, while the southern border of this plain is marked by the eastern extension of La Hispaniola's faults system. All of this explains that, since the soils are partially granular, loose and saturated, the risk of liquefaction is quite high, in the event an earthquake of a 7.5 magnitude in the Richter scale takes place. - Caverns Inventory An inventory of caverns was performed, which found a total of 58 caverns, described in Annex D. - Conclusions of the geological study The geological and geophysical studies that have been developed on different points of the route of the new Santo Domingo-Samana highway, following the Marbella - Guerra - Monte Plata - Sabana Grande de Boyd -Majagual - Guaraguao - Rinc6n de Molinillos route, allow us to reach the following conclusions: 51 The strip located between km 0 and km 7 of the road's route is formed by a dense, hard, porous, very permeable coralline limestone. Allowing a fast vertical natural drainage that it is also highly resistant to abrasion and uniaxial compression. These limestone are exposed in a system of marine terraces emerged from the oceanic bottom, with abundant large, medium, and small caverns, as well as multiple dolines or drains that facilitate fast vertical infiltration of waters. The rock in the first seven to eight m of depth is very hard, with an extraordinary load capacity, except in the cavernous areas. This characteristic make their excavation difficult and it obligates to use pneumatic hammers, milling machines, pneumatic guns or explosives. In the cavernous reef limestone of the stretch from kmO+00 to km7+00, the compression waves travel at speeds higher than 2,000 m/s, that is why damages in this stretch due to an important earthquake are not expected. Between km 7+500 and km 22+00 stations, 31 test pits were made, in which calcareous clayey materials were found with a variable plasticity index between 12 and 50, almost all classified as CH, pursuant to the unified system. These results confirm that the strip located to the north of the Mella Road is dominated by calcareous clayey materials. These clayey strips don't have the capacity for vertical drainage, due to their low effective porosity, which can be translated into a very low permeability. Because of this reason, drainage in this area has to be assisted by coated lateral flumes, that channel waters towards neighboring streams, ravines, or brooks. The bridges over the Mella Road, the Cach6n Stream and over the Yabacao River, will have their foundations over these calcareous clays, where amplification of the seismic phenomena could arise. The terrain's acceleration peak could be around 0.25-0,35g; in other words, approximately from 2.45 to 3.45 m/seg2, depending on the conditions of the soils, which vary both laterally and vertically. Los Haitises area constitutes a karstic relief integrated by very hard reef limestone isolated domes separated by depressions or drains filled with lateritic soil of a neighboring residual origin. The karstic limestone located between the Batey Nuevo and Majagual are soft marly limestone, generally with low consistency. They can be easily torn with a tractor, since they are crossed by longitudinal seismic waves at speeds below 2,000 m/s. There are multiple karstic drains recorded between the Batey Nuevo and Majagual, many of them along the cart road. These drains are filled with lateric soils, whose thickness exceed five m. The 13 geo-electrical profiles developed between the 66+500 and 73+500 stations confirms that the karstic drains are filled with lateric soils and blocks. In very few instances, there are values registered suggesting hollow caverns. However, in areas not covered by the profiles, there might be hollow caverns. 52 The 13 vertical electrical soundings developed in the different stretches show a typical stratigraphic profile formed by a filler of the soil that occupies the upper portion, and by limestone that varies between soft marly, and hard crystalline limestone. The 13 -S-6 vertical electrical soundings, located at the 71+200 station, and S-12, located at the 72+3 80 station - show sudden and high jumps at depths of 11 and 9 m, respectively. The values obtained could suggest hollow caverns, that is why it could be required, in the future, to perform mechanical test drills. The floodplain of the Yuna River is formed by fine sediments related to sandy mud lenses, sands, and fine gravels. In 14 mechanical test drillings performed, it can be seen that these sediments are present in a consistency state from very soft to soft in the first three meters of depth. Below three m deep, the clay varies from consistent to hard. The most critical area from the seismicity point of view along the road's route, is the area of the Bajo Yuna, from Guaraguao (km77+00) up to the Rincon de Molinillo crossing (kmlO5+990), because the western portion of the Samand Bay is limited by two large active faults. The northern border of this alluvial plain is defined by the Northern fault, the southern border of this plain is marked by an eastern extension of La Hispaniola's fault system, and, given that the soils are partially granular, loose and saturated, the risk of liquefaction is quite high, in case an earthquake with a 7.5 magnitude in the Richter scale occurs. The terrain's acceleration peak could be around 0.45-0.55g; in other words, approximately 4.4 a 5.4 m/seg2. 4.1.1.2 Geo-morphological Zoning The following zoning was derived from geological and geo-morphological studies: * kmO-km7 It corresponds to a marine terraces system, surfaces that emerged from the oceanic bottom and formed by recent coralline limestone, where large, medium and small caverns are abundant. It also shows multiple dolines or drains, that facilitate fast vertical infiltration of waters. The rock on the first seven to eight m in depth is very hard, with an extraordinary load capacity, except in the cavernous areas. In the path from the Autopista de Las Americas towards the North, there are several levels of reef terraces, facing east- west. The first one is in the 15 masl elevation, it has a variable width between 1,000 and 1,200 m., extending from the coast towards the North. In this terrace is km 0+00, corresponding to the new route of the Santo Domingo-Samana highway. Although there wasn't any cavern observed in the excavated strip, there is a large cavern in the northeastern area, which is open to the surface, containing water inside of it. This cavern from the excavation's northeastern area is part of the cavernous system that stretches in depth, which is clearly reflected in the geo-radar images. 53 Within this same terrace, near the surface, there are multiple hollow caverns that have to properly treated, before the highway is constructed. This is being currently complied with in the Autopista de Las Americas, in order to extend it, where GEOFITEC, S.A. developed several studies that evidence karstic solution. The second terrace starts at the 20 masl elevation, and it covers a strip of approximately 800 m. wide, where the new Santo Domingo racetrack is located. The limestone continues being coralline, hard, and cavernous here, and it requires specialized equipment for its excavation throughout the width of the road. The third terrace is immediately to the north of the racetrack, and it covers all the area of the San Isidro Air Base, with irregular elevations that fluctuate between 30 and 40 mm over the average sea level. That is why all coralline limestone of the strip located at the south of the 2047000 mN parallel, is dense, "hard", porous, very permeable. It allows a fast vertical natural drainage; ant it is also highly resistant to abrasion and uniaxial compression However, towards the north of the 2047000 mN parallel, there is a marly coralline limestone with a variable color between cream and yellowish, hardly permeable, coverd mostly by dark red or brick red lateritic residual soil. The thickness of the soil varies from a few centimeters to several meters, being larger in karstic drains or dolines. This coralline limestone, which covers all the perimeter of the San Isidro Air Base is hardly cemented and it alternates with marly, where clayey materials are abundant. They are hardly resistant to the cut, which facilitate excavation and development of quarries where the caliche is extracted. The caverns located at the rocky outcrop at the neighboring zone of the San Isidro Air Base evidence this karstic solution process. From the hydro-geological viewpoint, the limestone of the coralline platform are quite porous and filled with holes, which facilitate fast vertical drainage along the first 3,5 km. * km7-km4O This stretch shows an alluvial plain formed by clayey sediments from a fluvial origin, clayey sediments from a marine origin, and residual clayey sediments that are a product of weathering of preexisting rocks. The area of the Guerra crossing mainly dominated by calcareous clayey sediments, with a very low permeability, where rainwater accumulates very easily. These fine sediments are related to lenses of gravel and sands deposited in the past by temporarily active fluvial currents. A prior geo-electrical study, developed in the same zone through electrical soundings and geo-electrical profiles, allowed to identify a clay layer of 12 Ohm-m and 77 cm thick, and then another clay layer of 14 54 Ohm-m and 50 cm thick, which indicates that the upper horizon of this place is completely clayey and impermeable. Below the upper horizon, there are 58 cm with resistivity of 16 Ohm-m, 90 cm with resistivity of21 Ohm-rn, 1.4 m. with resistivity of 23 Ohm-m, 1.8 m with resistivity of 20 Ohm-m and 22 m. with resistivity of 16 Ohm-m. All the stratigraphy crossed by this electric sounding is totally clayey and calcareous, which indicates that there isn't the possibility of natural vertical drainage in this place. A second electric sounding was performed near the 0422123 mE /2048281 mN coordinates. In this same electric sounding, it was established that the first 75 centimeters have a 25 Ohm-m resistivity; the following 71 cm. a 26 Ohm-m resistivity; and the following 38 cm, a 32 Ohm-m resistivity. This indicates that the first 1.90 meters are formed by a horizon of clayey sand, and another subhorizon of sands, a material with moderate permeability. From 1.90 m in depth, the resistivity reaches 14 Ohm-m per space of2.20 m. It is a fully clayey horizon. From 4.10 m up to 5.90 m in depth, resistivity is 22 Ohm-m, typically sandy clay. From 5.90 m up to 14 m., resistivity is 30 Ohm-m, which suggests marly limestone. In this same zone, a geo-electrical profile was carried out, which showed isolated pockets that cover the upper portion of the profile. They extend up to 90 cm, in some cases, and up to 1.50 m, in other cases. These pockets are formed mainly by granular materials, gravel type, sands and/or limestone fragments. Below the pockets, there are areas shown dominated by clayey materials. They are an indication that most of this transverse section if formed by permeable materials, above, and by impermeable materials, below. Very similar results were obtained through geo-electrical and seismic refraction studies performed at the Mella Road crossing, and on the margins of the Cach6n Stream, where an off-level crossing of the highway and a bridge will be constructed for the Santo Domingo-Samana highway, respectively. Many of the clays in the zone tend to generate extended retraction cracks, that many times extend up to the pavement per se, especially in periods of long draughts where solar radiation fully eliminates the dampness in the soil. These clayey strips don't have the capacity for vertical drainage due to low effective porosity, which is translated in very low permeability. * km4O-km62 Hills formed by basic volcanic rocks (mainly andesites, basalts, tuffs, pyroclasts) are linked to yellowish marly limestone. These volcanic rocks are susceptible to the cut when they are weathered; but they are totally resistant and very difficult to cut when they are fresh. * km62-km71 Karstic relief basically formed by isolated cavernous limestone domes, separated by dolines or depressions that act as drains where weathered waters are drained. This is how, it is possible for dolines to accumulate these deposits from neighboring residual origin. This limestone is easily torn by D-9 tractors, that is why non-conventional methods such as pneumatic hammers or explosives can hardly be used. Thanks to the cavernous phenomena, this strip has a great easiness for vertical drainage. * km71-km77 55 Karstic relief formed by very hard reef limestone isolated domes, separated by depressions or drains filled with lateritic soil from neighboring residual origin This limestone is very hard with a very escarped relief * km 77- km 105 Floodplains formed by fine sediments deposited by the Yuna River currents, sediments that are linked to sandy lenses and fine gravels. This strip's clays and sandy mud show a very soft consistency three meters in depth. Under these three m, the clay varies to a hard consistency. 4.1.1.3 Uses of the soil * Areas of agricultural productivity Four types of soil uses were determined in the road's area of influence: - Sugar Cane A dense cultivation of herbaceous cluster of flowers and roots of three and four m high, which leave main narrow paths for machinery access, and other which are narrower for demarcating lots and for personnel access for their maintenance, it shows, therefore, a foliage filled with medium observation and light green uniform color; its large extensions and uniformity allow to observe the continuity of the terrain's minimum waves. This cultivation has been very important for the economy of the Dominican Republic, being sugar the first line of exportation for several decades, and the agricultural industry with the greatest demand on labor in the fields and sugar mill plants. Within the corridor there are sugar cane plantations in the stretch from km 4 to km 25; medium and undulated terraces can be observed in the terrain, the sorry state of neglect in which cultivation and exploitation machinery are under, the plantations are seen over-ripe and burnt, given way for the resurgence of weeds and grasses, which in turn gives way to cattle pasturelands. This seems to indicate a crops reduction policy due to low demand for sugar in international markets. - African Palm Mass cultivation of high palms that reach heights up to 18 m, with a sow that follows a geometric pattern, maintaining distances from 6 to 8 meters between palms and furrows; plantations also divide the blocks with access to machineries for harvesting and lots of blocks with paths for transit of harvesting carts pulled by axes and buffalos. These plantations allow establishing herbs and grasses under their high canopy (12 - 15 m) in the form of a crest, allowing preservation of the soil in a landscape of coverage that is aligned over a carpet of underwood; the dark green of the leaves of the African palm makes this wooded unit stand out from the level of higher terraces (See Photo 1 of Annex E). 56 The African palm is maybe the cultivation with the greatest agribusiness projection for generating exportable oleaginous products, and for benefiting from the byproducts in preparing food for cattle. Their cultivation area is seen in stages of plantations renewal, and in extending others; thus generating an increment of personnel used in the field, and in the industrial processing plant. This cultivation is affected by the project in the stretch from km 26 to km 33. - Rice cultivations They are dense cultivations of the gramineae in clusters, that as they grow become stronger and fully closed, giving the appearance of an extensive green carpet. These fields have become due to the adaptation of large areas of land in the great alluvial valley of the Yuna River, where water transportation has been done through channels and irrigation of cultivations by inundation; currently the land continues being adapted, and channel networks are being built in parallel for channeling waters. This cultivation that has a high domestic demand makes the agricultural line a semestral and permanent activity, with a great demand for labor, machinery and infrastructure for the industrial process. The project's layout takes maximum advantage of the existing road corridors, as a measure to decrease the impacts, located at the stretch covered from km 84 to km 106. - Miscellaneous cultivations They correspond to plots of land for cultivation of vegetables, banana, cassava, and fruits, commonly referred to as smallholdings ("conucos"); they are located along the project, along with rural homes, "bateys" (group of buildings surrounding sugar mills) and as plots of land in small valleys formed between low hills. * Areas of cattle productivity They are open areas in natural or improved grasses, dedicated to extensive cattle raising. They are located with a greater emphasis from km 34 to km 78, although it was noted that different sugar cane cultivation areas are being converted into cattle grazing lands. It should be noted that in the sector of Monte Plata and Sabana Grande de Boyd, there are surface erosive processes observed, which are generating furrows that are being undermined by runoff rainwater, becoming the main threat for the cattle line. (See Photo 2 of Annex E) * Protection areas The following three type of forests have been characterized as protection areas: Low forest: This unit has been characterized for areas with native coverage with sparse or dense bushes up to five m in height, whose soils do not provide an appropriate depth; they are common in tops of low hills and in terraces with outcrops of rocky stratum. 57 Medium forest: It generally corresponds to strips of small stream banks or areas of woodlands recovery within cultivation fields, with native trees that have heights up to 12 m (See Photo 2 of Annex E) High forest: Defined for native tree areas that have en extensive notoriety, generally related to hydric banks of main currents, where the ground depth is greater than 1.5 m and organic matter contents has favored them. In these strips there ere trees up to 30 m high, with diameters greater than 1 meter, species that can be underlined are the Hura crepitans and the Erytrhinafusca. 4.1.1.4 Landscape According to the consideration of large landscape elements, such as the terrain's geoforms, characteristics and use of the soil, as well as the microclimate's specific conditions, the project's route path identifies four distinguishable sectors: * The first sector (kmO+00 to km 35) Within this sector there are two subsectors observed: characterized by minor differences in geo-morphology, quality or thickness of the productive soil and use of this soil: The first, (kmO - km7), shows a very surface soil, given the outcrop of the rocky layer with a high calcium content. There is low forest vegetation seen with a dry appearance (fine foliages and in horizontal stratums); as well as herbs and natural grasses in clusters that don't allow total coverage of the soil. This subsector is highly influenced by the urban growth of the City of Santo Domingo, being able to see the typical reticulated system of the urban design. The second subsector (km7 - km35) is defined over a flat undulated sector, that also differentiate terrace levels modeled by sedimentary type material transported and some sectors by the gradual and local washing of the parental material, by the karsting process. In this sector the use of the soil is dedicated to agricultural and livestock production, especially in extensive cattle rising by improving plains and basically by establishing hedges, with trees linked to homes and rural and suburban settlements has been done, which have consisted in sowing and preserving fruit and ornament trees as home peripheries. On the other hand, on the banks of strips of bodies of water natural forests have been preserved, which are generally formed by dominant species such as the giant bamboo (Bambusa guadua), the royal palm (Roystonia hispaniola), the majagua (Hura crepitans), (Erytrinafusca), the plum tree (Spondias mombil) and others. * The second sector (km35 al km7l) It is differentiated because it passes over terrace levels, where mild dissections (flat - undulated) to strong (undulated - strongly undulated) can be observed toward the central drainages (See Photo No. 4). The prevailing use is extensive cattle raising in 58 some of the improved plain areas and some plots of land in sugar cane, corn, and other miscellaneous cultivations. The forest coverage is shown as preserved areas in some high hills, and in other areas it has been limited toward the riversides, headwaters of some small basins, coverage related to settlements, hedges, and specific areas referred to as deep dolites or rounded holes that due to the impossibility of agricultural and livestock use are ruled out within the pieces of land referred to as productive areas, containing some dominant species from the sector. Likewise, in this sector we begin to observe the formation of a chain of low and generally rounded hills or with abrupt taluses, with valleys formed in their intermediate areas where traditional cultivation is carried out. The dominant vegetation is characterized by species such as the yagrumo (Cecropia sp.), the royal palm (Roystonea regia) and the majagua (Hura crepitans). * The third sector It corresponds to a dampening mountainous zone and Los Haitises National Park, from km 71 to km 84, that by Decree 239 of the Dominican Republic it was established as a natural preservation area; the interest in the area falls under the framework of the preservation context, such as fauna habitat and endemic vegetation or with a especial importance. Since there isn't an alternate possibility for the project's crossing, the project will use the existing road corridor, aimed at adjusting the design to the minimum width specifications originally considered, in order to prevent cutting taluses, eliminating trees, and aiming not to affect smallholdings as much as possible, which are located in consecutive farmable valleys, with fruit trees, so that the peripheral population continue benefiting from it through the practice of tolerable management for the park's area; this way the road project would become a part of the natural reserve as a required and renovated access in order to welcome the development of eco-tourism. (See Photo 5 of Annex E) In the construction an operation process all environmental mitigation measures proposed should be carried out, in order to prevent the environmental impact consequences as much as possible. In this sector of Los Haitises Park a notable landscape is differentiated due to its particular geoforms, which have been modeled by the karsting process, and which consider, within a sigmoid labyrinth, a series of endless corridors, and deep and concave small valleys inter-isolated, and as a peculiarity infiltrate rainwater that falls in each of these afferent areas that become independent relief units of scenic importance. The vegetation contained in this sector correspond to small and medium size species which have adopted to the steep taluses of these hills and the outcrop of calcareous surfaces with a null or scarce soil profile. However, trees have been established in the small valleys, with heights up to 25 m such as the royal palm, and with large foliage coverage such as the majagua. (See Photos 6 and 7 of Annex E) * The fourth sector It extends from km 84 to kmlO6. It corresponds to a flat zone from an alluvial origin with fertile soils and organic content, which are used in a large percentage for rice production with irrigation implementation by inundation. This sector shows high forest areas in the meandering banks of the main currents. There are three notable 59 species such as the royal palm, clusters of giant bamboos, yagrumo (Cecropia sp.), majagua, balso (Ochroma lagopus), Terminalia sp. and trees of Erytrina. Figure 4.1 describes this landscape units. Within the four large landscape units or sectors described above, the general landscape units contained are specifically defined, in order to take them into account for defining the composition and texture recommendations within each specific area's management of the landscape, among which the following were considered: Hedges unit: Practice of sowing trees or spurs of arboreous species with the capacity of sprouting new shoots, in the lines of isolation fences. Preference of vegetation reproduction commonly used in this sowing practice are species such as Gliricidia sepium, Spondias purpurea y Spondias mombil. Banks and damp environmental preservation unit: Through Law 5856 of April 2, 1962, regarding forest preservation, we can highlight preservation of mountain tops, river banks in a strip of 30 m. wide on both sides, and 20 m. around lakes, lagoons, streams, and springs that serve a community or a neighborhood.. Taluses protection unit: It correspond to exercising activities that comply with the stabilization norm of the corridor, and of improving the aesthetics and scenery of the project. Management unit in the park: It has do with the joint proposal between stabilization and aesthetic improvement of the corridor, combined with promotion development of Los Haitises Park, within the policies of National Parks and specific ecotourism established by the Secretariat of the Environment. 60 Figure 4.1 Landscape Figures 61 DISENO CARREFERA SANTODINO ESTUDIO DE IMPACTO AMBIENTAL CRUCE RINC6N DE MOLJNILLOS PERF1L PAJSAJIST1CO 004-02 ~ REPOJBLICA DOMINICANA41 Rapprochement unit with Los Haitises National Park: It will have to deal with the coordinated management and use of the park's dampening peripheral strip at the project's crossing sites (towns of Majagual y Guaraguao). Road intersection and special crossings area: In these annexed structures or spaces of exchange of specific units of landscape, there will be a proposal submitted for road signs and natural identification. Torrents control area: Defined by the crossings of hydric bodies that presuppose prevention due to the possible increments of water volumes that could cause undercuts or direct hits to support structures. Scheduled natural protection will be proposed, which will achieve mitigation of banks and undercuts overflowing near infrastructure crossings of hydric bodies, on the lung run. Soils biomechanical stabilization unit: It generally corresponds to all control works and talus stabilization, this proposal is made under principles of subjection and control through specific natural anchorage points. Adjustment unit with special adjacent spaces: Considered for peripheral spaces of homes, restaurants and other services in general, contemplating isolation or natural enhancement, as elements attached to the road corridor. 4.1.2 Hydrologic Component The path of the Santo Domingo - Cruce Rinc6n de Molinillos road intercepts in its route the basins of the Ozama and Yuna rivers. The basin of the Ozama River is crossed from South to North, it intercepts in its way the basins of the Yabacao, Socoa, rivers, and numerous tributaries of a lower dimension, while the basin of the Yuna River is crossed by the road in its lower part, a zone that is known as the Bajo Yuna. In many cases the basins identified lack flow measurements, not even sporadically made, therefore, the estimates of flood flows for different return periods are made based on the application of the runoff rainwater model. Basins that have periodic flow measurements, in other words, those that have limnimetric stations are the Yabacao River at El Jobo and the Yuna river at Villa Riva and El Lim6n, the Yabacao station in El Jobo, in addition to be distant from the road's crossing site, it has a very low series of data so as to determine flood flows, that is why it was decided to apply the runoff rainwater model. The Villa Riva and the Lim6n stations are located at the Yuna River at the left and right sides of the road, they have consistent records that go from 1956 to 1988 for the first one and from 1969 up to this date for the second station. This represents excellent information with respect to medium flows available, but with respect to maximum flows they are limited by the flow's capacity in both points. According to the information collected, the Yuna River exceeds its conduction capacity with relative frequency, therefore, the records do not reflect the actual maximum flows verified in that station. 62 * Ozama River Basin The following currents belong to this basin. - km 0 - km 10 Stretch The first stretch of the road, from km 0 up to km 10 is identified, by setting up a camp with the support of aerial photographs interpretation and topographic charts 1:50.000. There are six sporadic natural river beds, that is to say, that they only conduct water in the presence of precipitation, remaining dry during the rest of the time, and the permanent river bed of the Cach6n Stream, which behaves as a Lake in the stretch intercepted by the road, according to the topographic survey carried out. The Cach6n Stream is born near the Cruce de Cuenca upstream of the San Isidro - Guerra road, its is eight km long up to the mouth at the Ozama River and two km up to the crossing with the road; the area of the basin's contribution up to this point is 20.35 km2. With an estimated hydraulic slope in the flow's upper zone of 0.0037 m/m. - km 10 - km 30 Stretch The road's path in this stretch meets a series of river beds, being the most important: Cafio Marucho and the Yabacao River, tributaries of the Ozama River. The Cafio Marucho is a relatively short river bed derived from the Yabacao River upon entering the areas in the proximity of Los Morenos Pump Station at the Guerra Municipality. It flows in parallel to the Yabacao River and it flows into a Lake. The Yabacao River is born at elevation 340 masl in the proximity of the village Cuatrocientas at Los Haitises, it has an area of contribution up to the site of the road's crossing of e 669.48 km2, the river bed's length is 79.67 km. Its main tributaries from its source up to the point of the road's crossing are the Castafno, La Yuca, Guaymarote streams, the Yuvina River, Cafiada Larga Stream, Comate River, Hicaco Stream and the Sabana River, the road in its stretch from K26+500 to K28+000, runs in parallel to the Yavi River, an important tributary of the Sabana River. The basin's area is conformed in approximately 75% by reef limestone, and a conglomerate of around 10% of magmatic rock and sedimentary volcanic rocks predominantly originated in arch of islands with metamorphism in contact areas with intrusive bodies, the remaining 5% is formed by fluvial deposits, alluviums, and low terraces. The basin's vegetal coverage is distributed among sugar cane, grass, latifoliated bush, and coconut palms, being sugar cane the predominant cultivation that reaches around 70% of the area. 63 Of the aforementioned river beds the only ones that have measurements are the Sabana rivers at the place known as El Hidalgo, Comatillo, tributary of the Comate at the site called El Salto, and the same Yabacao River at the Jobo. The most recent measurement period is the one that corresponds to the station over the Comatillo River corresponding to the 1986 to 1994 period, the others are stations that operated for a short time, of which we can count with sporadic measurements, which allow to obtain a overview of the availability in such points. This stretch is basically developed at elevations 20 and 10 masl, with very low slopes which cause the formation of lakes such as Lagunas Claras where the stretch of the road from km 21 to km 23 crosses it. - km 30 - km 50 Stretch In this stretch are the Hundidero Stream in the proximity of its source, Palmilla Stream, Socoa River and Toro Prieto Stream. Of the abovementioned the most relevant river bed is the one in the Socoa River. The Hundidero Stream is born in the proximity of the Batey de los Arroyos at a close distance of the Monte Plata - Bayaguana road, it has a contribution area of 3,22 km2, the river bed's length is 1.16 km, up to the crossing site with the road. The Palmilla Stream is born at the surrounding area of the Hato Nuevo town, next to the Monte Plata - Bayaguana road has a contribution area of 2.31 km2 and 2.02 km long up to the site of the road's interception. The Socoa River is born at the Batey Sabana Larga at an elevation 210 masl, it has a path of around 26 km. up to the crossing site with the road, it has a contribution area of 58.66 km2 up to that point. In its path it receives the contribution of the Arroy6n, Cercadillo, Salsipuedes and Palmilla streams, it then flows into the Boya River at elevation 40 masl. The Toro Prieto Stream is a tributary of the Boyd River that is born near the Ant6n Sanchez village at an elevation of 110 masl, with a length up to the site of crossing with the road of 1.74 km and a contribution area of 1.83 km2. - km 50 - km 80 Stretch This stretch is conformed by a mixture of hydrological zones, the first river bed identified in this stretch is the Arroy6n Stream, which is crossed by the road in two points, it is a tributary of the Boya River and consequently of the Ozama River, while the other river beds identified are tributaries of the Aras River that in turn belongs to the Payabo River basin, a tributary of the Yuna River. The last 8 km of this path is made within the area of Los Haitises where there are no river beds identified, during the field works we only observed the existence of depressions on the terrain at both sides of the existing road in some points of its path, these depressions allow accumulation of water produced by precipitations that could become permanent. 64 The Arroy6 Stream is born at the southeast of the Batey Mejia at an elevation of around 260 masl, the contribution area up to the first crossing with the road proposed is of 2.86 km2 with a river bed length of 1.36 km and of 3.04 km2, with a length of 2.38 km, up to the second crossing point. The first tributary of the Aras River intercepted by the road is a river bed with little importance that is born at the reed- bed at the west of the Batey Aserradero, that is 0.435 km long up to the road and a contribution area of 2.31 km2.The second tributary of the Aras with which the road meets in its path is similar to the abovementioned but it is born at the reed-bed that is located at the east of the road that goes from Batey Enriquillo to Batey Juan Sanchez, its contribution area is lower, just 1.83 km2, although with a greater length (1,73 km). The Piraco Stream, on the other hand, is born at the north of the Batey Juan Sanchez at elevation 260 masl, with a contribution area of 7.80 km2 and a river bed length of 3.96 Km.; it is the most important river bed in this stretch according to the physical dimensions of its basin. * Yuna River Basin The road in its path in the stretch that goes from km 80 - km 105 crosses the last area of its path, corresponding to the Gran Estero zone at the area of the Bajo Yuna whose main characteristic is the poor quality of its drainage due to low slopes present in the zone and to soils still under formation with a high content of dampness present in these soils. This stretch is located at the river bed of the Guaraguao River, which is intercepted by the road in the proximity of its source with an outcrop at the northern hillside of Los Haitises. This river has a contribution area of 25.38 km2 and it is 8.03 km. long; it is a tributary of the Payabo River that in turn flows into the Yuna River a few km downstream of the confluence of the two last rivers. Almost all of the Guaraguao River path is made outside of Los Haitises area, it is a plain with very low slopes which causes the development meanders and frequent overflows due to the low conduction capacity of its river bed. This situations is worsened by the pool effect exerted in chain by the Yuna River over the Payabo River, and in turn by this river on the Guaraguao River. In addition, at this stretch the road intercepts the Cevicos River, in its stretch known as Cafno Pont6n, a tributary of the Yuna River, this watercourse has the peculiarity of being the flow that emerges from the center of Los Haitises after the Cevicos River infiltrates these rivers. This is a conclusion made and based on the observation of the flow's path, this phenomenon could be confirmed by conducting observations with tracers that would allow to determine the location of the inlet and outlet of the river beads to the cavernous zone of Los Haitises. The area of the Cevicos River basin to the infiltration point is of 142.19 km2. The high part of the basin is conformed by volcanic rock of the Higher Cretaceous period, while the remaining area, 60% approximately, is formed by non-consolidated clastic sediments that correspond to pond deposits of the quaternary epoch, ending at the Karst of Los Haitises. As it can be seen the basin starts with a very impermeable characteristic increasing its degree of permeability until it infiltrates in the Karst. 65 On the other hand, the road crosses a series of drainages of surrounding agricultural areas in this stretch, whose flows will depend on the return flows from the irrigation areas. These drains are the Caiio Mai Tomasina, drains that cross the road and serve as unload channels for the floods of the Yuna River, such as the Cafno Nidia and the Cafno Pionono. The estimated flows for these last two rivers will depend on the flood flows of the Yuna River and its conduction capacity in the stretches in question. The road crosses the river bed of the Yuna River in the proximity of the La Reforma village, it also borders the river bed in a stretch of some km in a highly susceptible floods area, for this reason it is essential to determine flood flows for different periods of return at this stretch's level in order to determine the height that the flow will reach and the area occupied by it, in order to prevent damages to the road.. The Yuna River Basin is regulated in two points, one over the same Yuna River with the Hatillo Dam and the other point over its tributary the Jima River through the Rinc6n Dam. Because of this reason, along with the large extension of the contribution area of the Yuna basin up to La Reforma, added to the changeable weather parameters of a zone to another within a basin, is that in this analysis there is an estimate of flood flows by sub-basins and segments of basins, taking into consideration the dampening effect of the dams in order to obtain a better approximation of the values of the design avenue required. The sub-basins that are part of the Yuna basin are: Camu with its tributaries Licey, Bacui, Cenovi, Jaya, Guiza and Jima, Maim6n, Yuboa, Yujo, Maguaca, Chacuey, Cuaba, Cevicos and Payabo. The Yuna River basin is limited by the Septentrional Mountain Range to the North and by the Central Mountain Range at the South, with the Samana Bay to the East where it flows into. The flows at the left banks of the Camui and Yuna are born at the South slope of the Septentrional Mountain Range and the flow in the North - South direction, the elevations in this zone's terrain are not too pronounced, and therefore the slopes are gentle and the flows contributed to the basin are lower than the ones in the right bank. The flows that go into the Yuna and the Camui rivers through the right margin are born at the North slope of the Central Mountain Range, and they flow into the South - North direction, this zone's terrain presents large elevations with sharp variations that consequently produce high slopes, torrential system flows added to the high precipitation values recorded in the area, show flow records much greater than those recorded by the flows in the left bank. Figure 4.2 shows the different river beds and bodies of water intercepted by the Santo Domingo - Rinc6n de los Molinillos road, along its path. For the different river beads identified along the road's path there are estimates of flood flows related to events with periods of recurrence of 25, 50 and 100 years. These estimates were made by applying a parametric Model of Rainfall-Runoff based on the Method developed by the Soils Preservation Service of the United States, which uses as basic information the Number of the CN Curve that depends on the geo-morphological parameters of the basins, the vegetal coverage, type of soil, and the prior humidity records of the basin. 66 Figure 4.2 River beds and bodies of water crossed by the road 67 Ro. 'o~ ~ ~ ~ ~ ~ ~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~- Alt -. I~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - .'-, N N~~AIK Y,5r l~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l XWS~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ / , '~ . 3 ti\ . /1 .- - - N I KO K2 IT l+~~~~~~~~~~~~~* I- ~~ 1 . ........ ..k.- \ 0-~~~~~~~~~~~~~~ 16 K82 K84 86 *,41 .4 Y, U2 < - ' ' S~~~~~~~~~~~~~~~~~~I' r~ - r.:,- Xo -rf 2.~- N f SECRETMIA ~~DE ESTADO DIER _ARTR SANT DOMINGO , DEBAPUBLICAS C............ ;tw .. ;* r,nw=r$ no~iana e.a. CAUS9OC NOESR YEM N CRUEDSpoRPOSDRE AGUA77 i E Y~~~~COMUNICA ,,CI |l[ 040 REPOBUCA DMINICANA 4.2|0| SECRETARIA ~ ~ ~ ~ ~ ~ ~ ~ ~ -IN DE OBRAS~0 (2¾ NES 004-11 CR4T- This model determines the effective precipitation and the values of the synthetic unitary hydrograph in order to determine the flood hydrograph. The model uses as an inlet parameter maximum precipitation in 24 hours for different periods of return obtained from the frequency analysis conducted and based on the probabilities distribution curve that produces the best adjustment for the series being analyzed. With this method you obtain the flows related to maximum precipitation in 24 hours for 25, 50 and 100 years for the Period of Return for the river beds intercepted by the road. The km 0 - km 10 stretch is the only river bed with a permanent nature in this stretch, which has the characteristic of behaving like a lake at the site where it is crossed by the Santo Domingo - Cruce Rinc6n de Molinillos road, according to the longitudinal profile of the Cach6n River. You can observe the existing depressions at the bottom of the bed that allows it to have a retention capacity, the flow movement only occurs starting at 5.5 m with respect to the lowest point measured in the stretch. The km 10 - km 30 stretch is crossed by the Cafno Marucho and the Yabacao River, the first one is a diversion of the Yabacao River that feeds a Lake and therefore the flood flows of this small river bed are going to depend on the flood flows recorded at the Yabacao River, and by the levels reached at the interception of both. The stretches of km 30 - km 50, km 50- km 80 have the presence of small river beds whose areas are basically conformed by reef limestone, sand and conglomerate, the predominant vegetal coverage is sugar cane. At the km 80 - km 105 stretch there are contributions of the Guaraguao and the Yuna rivers. The analysis of this stretch is conducted within the full analysis of the Yuna River basin. In order to perform this flood analysis the basin is broken down into sub-basins that because of their size do not allow a general analysis of such basin, furthermore, it is regulated by two pints whereby it is required to take into consideration the effects of the dams over the lamination of the avenues. The Yuna River starts to spill at a point upstream of the Villa Riva site, known as Las Verdes, and it continues spilling in several points along its path. Therefore, the flows measured both at the Villa Riva station and at El Lim6n station, don't contemplate the volumes spilled upstream. The flood measurements made are performed after the flood has passed, consequently, there are not adequate structures to measure flood flows, therefore, average flows are always lower than actual flows conducted through the river bed, at the time the Flood passes. Either way, the maximum flows measured provide an idea of the river bed's conduction capacity at these points, but not of actual floods, because of all of the reasons stated above. According to the regional development plan of the Cibao conducted by the INDRHI (1981), it was concluded that maximum annual floods coincide with the natural imbalance due to its geographic location, for the Villa Riva, El Lim6n, Platanos/Hatillo and La Bija stations. The overflows of the Yuna River occurred 17 times in 22 years, with a maximum of a six day duration and a minimum of one day duration, being three days an average period. The duration of the overflows do not 68 necessarily coincide with the number of days that the land remain flooded; rather flood durations are higher due to the defenses that have been built in several occasions in the past, elevation of the Yuna River bed due to sediment deposits and bad drainage of the lower areas of the river's neighboring area. At the Payabo River in Abadesa where the measurement station is located, only a 6 hours overflow was recorded in 10 years. Notwithstanding, the same river at the stretches between the Los Haitises mountain range, and the same Yuna River, overflows each time it's flood coincides with those of the Yuna River at Villa Riva, and they last between 12 and 22 days according to information provided by peasants. It is concluded that the estimated flows are the corresponding ones to the response of the basin up to that point. The flows for different periods of return are shown in the hydrographs of Figures 4.3 to 4.5, for the periods of return of 25, 50 and 100 years. 4.1.3 Atmospheric Component 4.1.3.1 Climate * Climatic and pluviometric stations The area of the study has ten pluviometric stations, located at both sides of the road, which were selected according to the extension and consistency of their records. These stations allow us to appreciate the pluviometric behavior of the zone, within this group the La Victoria, Monte Plata, Bayaguana, Nagua and Sanchez stations are thermo-pluviometric stations, that is, they have temperature measurements in addition to precipitation measurements, and the Santo Domingo, El Aeropuerto Las Americas and Barraquito are climatic stations, which implies in addition to the aforementioned parameters, they also measure wind velocity and direction, relative humidity and evaporation. 69 180 140 1 2I 3-l- 4- 5_ 6- 7 81- 9I 10 11 12- 13 120 -_t__ 2~~~~' t-. .< ,Itrv .> ' ' l /'+> Time (min) | 60Tr25-Tr50 Tr=100 Figure 4.3 Hidrograph of the Guaraguao River Flood 140 1 2 3 4 5 6 7 5 9 10|1121i141I6171819 12 2 32 I41262I8230 Time (hour) Tr25 Tr5 T r 1 00 Figure 4 4 Hidrograph of the Arroyon Stream Flood 70 1400 - | - ; - 1200 -: -- -s- -' - 2 ;w- - V; cm11000 - 2 3 4 - - 7 - 9 13 Tuuu __ours) .| 40=2 Tr5 _=_ |- 400~ ~~~3 0 _ 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 Time (hours) -Tr-25 -Tr-50 TrlO10 Figure 4.5 Hidrograph of the Yabacao River Flood The Barraquito and Abadesa stations belong the Hydrological Database of the Hydrology Department of the National Institute of Hydraulic Resources (INDRHI) and the other stations belong to the National Office of Meteorology (ONAMET). Figure 4.6 shows the location of the pluviometric stations and Table 4.2 shows the list and location of these stations. Table 4.2 Climatic stations used for the study Stations Length Latitude Elevation Responsible _______________ ~~~(m asi) Sanchez 435595.50 2126932.80 17 Meteorology Las Americas 429058.00 2038035.50 10 Meteorology Nagua 411540.90 2141051.80 3 Meteorology Villa Riva 404742.90 2120657.75 17 INDRHI Monte Plata 417293.10 2079346.70 56 Meteorology Santo Domingo 408141.90 2043264.90 49 Meteorology Abadesa 402128.30 2103401.30 45 INDRHI La Victoria 410495.10 2055815.10 12 INDRHI Yamasa 392977.10 2076732.10 69 INDRHI Bayaguana 432980.80 2074117.50 76 Meteorology Barraquito 414155.60 2117781.70 6 INDRHI 71 I Figure 4.6 Location of the pluviometric stations 72 1~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 'II L~~~~~~~~~~~~~~LT SA SEhA PWAD so DoE 0o AImr PM, v ) aV W '', _ ~~~~PJ10C~OW0 W~~~~~~~~~~SAIE ftU A.. . inTAm~~~R20 L MONM MOM PROYECTO TfTULO- ESEVJDIO M0 0M0 CTO W8IENTAL \INN DEt X M INILLOS REP A DO ICANAO , DELP PROYSECTO TMTLO ETUDO EAMPCTOAMIET. DISEi' CARRE.RA SANT DOIG CRUC IBCW DELSETC ONE LVMT RINCON DE MONLO REOLC DOMIN .AN -Fu Re. Ap \,,CL Eseilste Fecho r a/X$\ J. ESEOM .AI]ZBA .Otbeo . * Precipitation The average total annual precipitation in the area of the study varies in a range from 1140 to 2200 mm. In order to define the spatial distribution of precipitations an Isohyet map was generated for total annual precipitation in the zone, based on the multi-annual average data recorded at the stations of the area studied (See Figure 4.7). According to this figure, two high precipitation centers were observed, one in the Villa Riva - El Lim6n de Yuna y Nagua zone, precisely where the greatest drainage occurs. And the other center is located at Monte Plata, an area also characterized by low slopes and consequently, zones that can be flooded and with formation of lakes. The lowest precipitations, on the total annual scale, are recorded in Stretch 1 (km 0 - km 10), which vary in a range of 1,140 to 1,780 mm, in the south area, in the proximity of the Caribbean Sea, where the representative stations are the Santo Domingo and the Aeropuerto las Americas stations; the lowest precipitation values are recorded in this last station. In this stretch it can be observed a spatial precipitation variability with a positive precipitation gradient, as it moves away from the coast. Figure 4.8 shows the precipitation histograph of the Aeropuerto de Las Americas Station, with a registration period between 1971 and 2000, and Figure 4.9 shows the respective graph for the Santo Domingo Station, with records between 1956 and 2000. In these stations a clear bimodal trend can be observed, with a dry period between December and April, and a less dry season in June and July, and two rainfall peaks, the first one in March and the second one between August and November.. For Stretch 2 (km 10 - km 30) a positive gradient was verified from the total annual precipitation values in the South - North direction, varying from 1,640 mm up to 1,880 mm at the end of the stretch, the most representative station of the stretch is the Victoria station with an average for the registration period reaching 1,876.4 mm. Figure No. 4.10 shows the precipitation histograph for this station, based on the records from 1956 to 1988. In this zone it can be observed only one dry period (monomodal trend) with the dry period between November and April, and the rainfall peak in the month of August. With respect top Stretch 3 (km 30 - km 50) a high precipitation center was verified around the Monte Plata station where the records report an upward multi-annual average at 2,062.2 mm. This center is located around the middle of Stretch 3, verifying negative gradients of the precipitation values both to the South and to the 73 I Figure 4.7 Multi-annual Average Data 74 7 - -A> g ~~~~~ I)))~~~~~~~~~~~~YV -`~~~~~~~~~~77 ~ ~ ~ ~ ~ . CONVENCIONES LEYENDA E TUDIO DE IMPACTO AMBIENTAL DISER40 CARRETERA SANTO DOMINGO CRUCE RINCON DE MOLINILLOS REPOJBLICA DOMINICANA 180- E F M A M J J A SON D Figure 4.8 Multi-annual monthly precipitation Aeropuerto Las Americas Station 1540 E F M A M J J A SON D Figure 4.9 Multi-annual monthly precipitation, Santo Domingo Station 75 I | | | g " S .0. 300- 250 E F M A M J J A S O N D Figure 4.10 Multi-annual monthly precipitation, La Victoria Station North, in the South being able to reach values of 1,880 mm and 1,.950 mm towards the North. The precipitation histograph for this station is shown in Figure 4.11, with records between 1956 and 1990. 350- 300- 250- 200- E F M A M J J A S O N D Figure 4.11 Multi-annual monthly precipitation, Monte Plata Station This station shows a slight bimodal trend, with two rainfall peaks, the first one in March and the second one in August, but with only one dry period, between November and April. Stretch 4 (km 50 - km 80) has precipitation values ranging between 1,950 mm at the start, and up to 1,880 and they begin to rise at the end of the stretch up to 1,709 mm. at the Abadesa Station. Figure 4.12 shows the precipitation histograph for this station, with records between 1960 and 1998. As in the case above, there is a certain 76 bimodal trend, with two rainfall peaks, the first one in March, higher than the second one in August. 250- 200-4 E F M A M J J A S O N D Figure 4.12 Multi-annual monthly precipitation, Abadesa Station Stretch 5 (km8O - kmlO6), the last one in the road's path up to the Cruce de Rinc6n, on the Nagua - Cruce Rinc6n de Molinillos Road is a zone that records high precipitations ranging between 1,920 mm up to 2,060 mm in the proximity of Villa Riva, a station where the annual average of the series of data available shows a value of 2,210.4 mm, again decreasing to 2,020 mm at the of the Stretch. Figure No. 4.13 shows the precipitation histograph of the Barraquito Station with records between 1975 and 2000, and Figure 4.14 shows the precipitation histograph of the Villa Riba Station, with records between 1956 and 2000, with a blank between 1981 and 1986. In the first station a large rainfall peak is observed in the month of March, and in the second station, an intense rainfall period between March and November, is observed. 300-, 150-_3 0 0 E F M A M J J A S O N D 77 Figure 4.13 Multi-annual monthly precipitation, Barraquito Station 250- 200- O5 - _ E F M A M J J A S O N D Figure 4.14 Multi-annual monthly precipitation, Abadesa Station The data on rainfall distribution by climatic stations is shown in Table 4.3 78 Table 4.3 Rainfall Data by climatic stations Station J F M A M J J A S 0 N D Total Santo 69,0 58,4 59,8 75,0 179,8 128,4 138,8 179 178,8 181,5 109,9 80,9 1.438,2 Domingo Aeropuerto 43,2 48,4 52,7 59,7 130,1 84,2 92,5 133,5 160,8 144 110,7 61,9 1.120,9 La 50,5 70,7 71,2 117,1 205,9 204,4 227,2 274,9 226,8 213,4 124,3 90 1.876,4 Victoria Monte 60,9 73,5 102,3 120,1 256,1 240,3 232 327,6 252,4 211,7 181,1 67,2 2.062,2 plata __.___ Bayaguana 46,4 63,1 75,5 131,0 240,8 214,1 218,1 270,1 223,9 196 112,2 58,5 1.849,7 Yamasa 70,1 70,5 72,7 113,0 200,0 162,8 185 227,8 193,1 177,5 120,3 74,3 1.667,2 El cacique 61,4 67,6 83,1 117,9 211,0 180,6 180 227,2 192,6 168 104,9 66,8 1.660,8 El cerro 51,9 68,9 83,8 127,4 224,2 225,9 202,2 267,7 207,9 186,2 109,4 71,6 1.828,1 Abadesa 63,2 58,4 83,6 117,3 235,6 203,5 181,3 223,7 195,6 155 112,3 79,9 1.709,4 Cevicos 98,3 96,5 110,7 135,9 268,8 234,2 228,3 276,6 208,4 206,6 158,7 115,3 2.137,7 Villa Riva 150,9 120,6 110,3 165,9 231,0 202,8 180,1 220,6 217 189,5 220,7 170,6 2.179,2 Barraquito 114,4 93,9 117,0 142,6 287,9 169,1 185,3 192,6 180,4 183,6 205,2 128,3 2.000,3 Nagua 142,7 117,5 112,2 146,1 217,8 112,3 128,2 148,4 160,1 227 242,2 192 1.945,9 Sanchez 109,4 97,8 95,4 131,8 198,7 135,3 176,9 170,6 174,4 178,8 198,3 141,9 1.808,6 79 * Temperature The monthly temperature at the stations of the study range between 24.3 to 27.6 'C. The monthly average temperature behavior is well marked, with two different seasons. The months of November to April record temperatures below average, while in the remaining part of the year temperature is above the annual average temperature. The differences with respect to the annual average reaches up to two degrees below between December and February and two degrees above in July and August, coinciding with the climatological winter and summer In Stretch 1 (km 0 - km 10), according to the data at the Santo Domingo Station, the minimum temperature varies between 20.8 and 21.8 'C, while the maximum temperature ranges between 28.7 and 30.7 'C, the highest values being recorded at the Aeropuerto Las Americas Station. Figure No. 4.15 shows the temperature histograph for the Santo Domingo Station and Figure 4.16 shows the temperature histograph for the Aeropuerto Las Americas Station. 27,5 27- 26,5 - 26- 25,5- 25- 24,5- 24- 23,5 23 - I I E F M A M J J A S 0 N D Figure 4.15 Multi-annual monthly temperature, Santo Domingo Station 80 27.5 27- 26.5- 26 - 25.5- 25- 24.5- 24 - 23.5 - 23 - 22.5- l l E F M A M J J A S 0 N D Figure 4.16 Multi-annual monthly temperature, Aeropuerto Las Americas Station For Stretch 2 (km 10 - km 30) and Stretch 3 (km 30 - km 50), the station used for the climatic description of the zone was the Bayaguana Station. The minimum temperature varies between 18.7 and 22.4 degrees Celsius, verified at Bayaguana (See Figure 4.17) in the month of February, and in La Victoria Station in the month of July, respectively (See Figure 4.18). On the other hand, the maximum temperature ranges between 27.2 and 33.4 °C, the highest values were recorded at La Victoria Station. For Stretch 4 (km 50 - km 80) and Stretch 5 (km 80 - km 105), the climatic station used was the Barraquito Station. The average temperature varies between 23.8 and 27.2 °C, the months of January and February checked the lowest temperature, and in August the highest temperature. * Relative Humidity Relative Humidity values recorded at the Santo Domingo and Aeropuerto Las Americas Stations are quite high due to the sea's influence in such stations, the values recorded range from 84.4% to 78.4% for both stations. The Relative Humidity values recorded at the Bayaguana Station range between 73.2% for the month of March, and 82.7% for the month of October, these high 81 relative humidity values recorded at the different stations reflect the characteristic of the subtropical humid climate of the area studied. 27,5 - 27- 26,5- 26- 25,5- 25- 24,5- 24-- 23,5 23 - 22,5 - E F M A M J J A S 0 N D Figure 4.17 Multi-annual monthly temperature, Estaci6n Bayaguana 29- 28 - 27- 26 - 25 - 24- 23- 22 E F M A M J J A S 0 N D Figure 4.18 Multi-annual monthly temperature, Aeropuerto La Victoria Station 82 The Relative Humidity values recorded at the Barraquito Station range between 78.4% for the month of April and 85.7% for the month of November, these high relative humidity values recorded at the different stations reflect the characteristic of the subtropical humid climate of the area studied. * Hurricanes In order to determine the possible influence that hurricanes have in the area studied, the existing information about the occurrence and the effects suffered before the presence of a hurricane was reviewed. From the information provided by the National Office of Meteorology it can be observed that in the north coast only two atmospheric phenomena were recorded since 1873 to the date: a tropical storm in 1887 which entered the country by Nagua, and the storm Eloisa which impacted by Cabrera in 1975 that is 88 years later. The regions most affected by hurricanes are the East, South and Southwest while the less impact is found in the Atlantic Coast. 4.1.2.2 Air Quality Given that the road follows in all its length rural areas and that it gets close to an oil palm factory in the 3rd plot, a good atmospheric quality is assumed and only in this zone one can foreseen a significant pollution. Therefore, the effects of constructing and operating the road will be analyzed in the Chapter of evaluation of environmental impact, taking into account the estimates of pollutant production by the vehicles as per the fuel type. In the chapter referring to the Environmental Management Plan, we have designed mitigation measures of these effects during the construction and a monitoring and follow up plan of the quality of the air during the operation. 4.2 BIOTIC ASPECT 4.2.1 Flora Component * Vegetation The topsoil was determined based on a section of the corridor and by identifying the various classifications of wooden areas to be affected during the construction stage 83 I~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ of the project. The baseline identified the outstanding species and those of frequent composition in each sector of landscape unit described. The dominant vegetation within the transect plotted by the route, correspond to variables by usage of soil, topographic and edaphic limitations, climate conditions and by practices to preserve woods due to institutions and citizens in general of the Dominican Republic. Among the current soil occupation, one observes four (4) significant areas used for farming production, that is which sugar cane, African palm, rice crops and open areas as plains for cattle raising exploitation, which represents within the corridor area of direct influence of the project 27% 17% in rice crops, 22% in sugar cane, 5,3% in African palm and 12% in sundry crops. The rest is defined among areas of special preservation such as the Natural National Park Los Haitises with 4,7%, in high forest, 5,3%, middle-size forest, 1%, low forest 4,7%. Map No. 2 presents the soil and topsoil. During the field visits we observed 140 plant species, which are listed on appendix F 4.2.2 Fauna Component To evaluate the fauna we revised the existing information, and made direct and indirect field observation (footsteps, warrens/burrows and nests, excrements, etc.) and to non- formal enquiries with the inhabitants of the zone studied. Initially, fauna was suffering mainly by the competition with other species and by the mechanisms used by the plant species which consists of developing chemical substances of bad tastes and even toxic ones that prevent them from being eaten by animals or covering their stems, leaves or fruits with thorns. The pressure over the fauna was greater when the pre-historical men stop being nomadic hunters to become sedentary farmers, as hunters moved when there was an animal shortage in a region. In that way resources had time to recover, while the sedentary communities fauna was overexploited, so producing in many cases the local extinction of endangered animals. * Birds This taxonomic group of vertebrates is the most evident and relatively easy to observe due to its daily habits and its brilliant colors. From the bibliography revised it can be pointed out that records of the road region show a total of 1 1 1 species, some 84 of which are migratory birds. Table 4.4 lists the number of species per family, where on can observe that the group of passeriform has the greatest diversity of species, being the Parulidae family the most representative, with 19 species, all of them from the forest, although there are species frequenting also the open areas. Table 4.4 Number of bird species per families in the region Order Family Common Name No. of species Podicipediforms Podicipedidae Zambullidores and tiguas 2 Pelecaniforms Pelecanidae Gannets I Sulidae Bubi I Phalacrocoracidae Coruas I Fregatidae Earwigs i _ Ciconiiform Ardeidae Herons 9 Anseriform Anatidae Ducks 2 Cathartidae Vultures I Falconiform Pandionidae Guinchos 1 Accipitridae Eagles and hawks 2 Falconidae Falcons 2 Galliform Numidae Guineas Phasianidae Quails 2 Aramidae Caraos I Gruiform Rallidae Coots 5 Caradriform Charadriidae Beacher- Playeros I Scolopacidae Playeros 3 Recurvirostridae Viudas, wadding I Laridae Seagull 3 Columbiformn Columbidae Doves 8 Psittaciform Psittacidae Parrots, parakeet 2 Cuculiform Cuculidae Cuckoos 5 Strigiform Tytonidae Owls Strigide Eagle owls I Caprimulgiformes Nyctibidae Mirapalcielos 1 Caprimulgidae Gallinacean and bujios 2 Coraciiform Alcedinidae Herons Pisciform Piscidae Woodpecker 2 Plocidae Madam sagA I Todidae Barrancoli I Tyrannidae Venus flytrap 3 Hirundinidae Swallows 3 Corvidae Raven 2 Passeriform Dulidae Cigua palmera I 85 Mimidae Nightingales I Turdidae Thrushes 3 Vireionidae Vireos 2 Icteridae Golden oriole & troupials 2 Parulidae Cigiiitas 19 Coerebidae Azucareros 1 Embericidac Ciguita cabeza rallada I Thraupidae Goldfinchs 2 Fringillidae Herringbone 3 Trochilidae Buzzers 3 Total 111 In this zone, in areas neighboring sources of water, we could observe with some frequency cattle-herons (Bubulcus ibis) that are shown in Picture no. 8, although they do not abound. In areas close to the trees we observed "pestigres" (Tyrannus dominicensis), a very common species that hunts insects while flying; Picture no. 9 is an example of it. There are eleven species protected by law, one endemic: "cigua palmera" but none of the bird species is endangered. In the Second zone there is a greater number of bird species, as it has larger topsoil, there are 68 species, among which we could observer abundant ciguas palmeras and woodpeckers. In this area also a kestrel (Falco sparverius) was observed, abundant cattle-herons, aura tinosa (Cathartes aura), which can be seen in picture No. 10, many "rolitas" feeding themselves on the road ad some flocks of parakeets flying (Aratinga chloropotera). A fisher- heron was also observed (Ceryle alcyon) in the Boyd river. In wooden areas ravens and 'caos' were present (Corvus leucognaphalus and C. palmarum); one of these species was observed at a distance but could not be identified. In this forest we listened to the nightingale singing (Mimos plyglottos), but we did not see one bird. Another specie observed was Ciguita mirta (Dendroica coronata), but in these forests there are new additional species of the same gender. In the second zone 14 species registered are protected by the Hunting law, four endemic species, the little goldfinch (Euphonia musica), and the cigua palmera, endemic to Dominican Republic, and the 'wolf-bird' (Saurothera longirostris) and the 'little buzzer' (Mellisuga minima), endemic of the Caribbean and an endangered species: the raven (Corvus leucognaphalus). 86 For the third zone, corresponding to the hilly area of the Haitises, a total of 62 birds have been registered, most of them endemic of wooden areas. In the surroundings of the road there are not many, but one may suppose that they are more common in the internal areas. In this zone we observed 'auras tintosas', a 'guaraguao' (Buteojamaicencis), several species of unidentified (but belonging to the Dendroica gender) flying 'ciguas' which are listed in Appendix F. In this area there are four species of doves registered, among which we could observe a couple of 'rabiches' turtledoves (Zenaida macroura). In this area we could also see parakeet flying, although the parrot (Amazona ventralis), registered in these hills was not visible. In open intra-mountain areas were crops are grown we could observe a 'judlo' (Crotophaga ani), near the old exploitation of construction materials. Picture 11 shows this animal. National Park rangers informed that occasionally one could observe owls (Asio stygius) and eagle-owls (Tyto alba) during the nighttime. They also mentioned that it was possible to observe once in a while 'barrancoli' (Todus subulatus) and they have seen at least two types of swallows, although three species have been reported. Likewise they mentioned having seen at least two types of 'buzzers': the big one (Anthracothorax dominicus) and the little buzzer (Chlorostilbon swainsoni). There is a third species registered for the area: the green buzzer (Mellisuga minima). This species of hummingbird feed itself mainly with flower nectar and is important in the pollination of some forest species. Occasionally they eat insects. In this area, all the existing species are covered by the protection status. Besides, three endemic species are registered: the 'ash-dove' (Columba inornata), ranked as locally vulnerable, the 'bobo bird' (Saurothera longirostris) and the 'little buzzer' (Mellisuga minima). Furthermore, endangered species are: the sparrow hawk (Buteo ridgwayi) and the raven (Corvus leucognaphalus). The fourth zone has features of flooding areas, former swamps that are currently used for growing rice; this is very related to the abundance of bird species, namely aquatic ones. A total of 25 bird species have been registered in the zone, including marine birds of the coastal region, which will not be directly affected when constructing the road. During the field visits we observed many gannets (Pelecanus occidentalis), which may be seen in picture No. 12, as well as 'man-of-war bird' (Fregata magnificens), 87 shown in picture No. 13, the blue heron (Egretta caerulea) observed in picture No. 14, the 'white beak gallareta' (Fulica americana), the 'water cocky' (Jacana spinosa), the 'yellow-leg beacher' (Tringa flavipes), the 'widow or wading (Himantopus mexicanus), priory erroneously registered in Stockton, (1978) as Himantopus himantopus, very commnon in rice fields.. In the coastal region there are three species of gulls and in the inner zone, four species of doves, associated with pasture areas with forest spots. One could observe a fishing heron in action (Ceryle alcion). Fifteen of the birds observed are protected by the hunting Law in the area of direct influence of the road in this sector. But farther away even, in the area corresponding to the park, all species are protected. Two endangered species are registered for this zone: the mangrove swamp duck (Dendrocygna arborea) and the hawk (Buteo ridgwayi) and a vulnerable species: 'the ash-dove' (Columba inornata), endemic to the Antilles. * Mammals Terrestrial mammals native of Dominican Republic are six species, reason for which the analysis is not presented by road sections. Among these species, we find the solenod6n (Solenodon paradoxus), a small insectivorous that can be found in the forest areas of Los Haitises and occasionally, in the wooden areas of the second area near Monteplata. This is an endangered species and is endemic to the island. Table 4.5 lists the terrestrial mammals of the direct influence area of the road. A species of wild rodent is the 'jutia' (Plagiodontia aedium), also from the wooden areas of Los Haitises and of Monteplata woods. This species has been considered as vulnerable; law protects these two species. Four additional species of this gender have disappeared. In addition, four species of bats have been registered: the fishing bat (Noctilio leporinus), found in the northern zone, in the low Yuna. The fruit bat (Artibeus jamaicensis) and the big- ear bat (Macrotus waterhousii), both species eat fruit and insects. These two species are registered along the entire road. A fourth species of bat is the (Monofillus redmani) eats wild fruits, nectar and insects. This species is endemic to the Caribbean Islands. Besides, there are other species of terrestrial mammals that have been introduced to the island; they are the ferret (Herpestes aeropunctatus), two species of rats (Rattus 88 rattus y Rattus norvegicus) and one of mouse (Mus musculus). These four species have become wild and are considered harmful. Also some cats (Felis catus) and dongs (Canis familiaris) have become wild. Domestic mammals are considered the following: cats, dogs, horses and cattle along the road. Another type of mammals which will not be affected by the road are the marine/ sea mammals found in the seaside of the National Park Los Haitises, in Samana Bay. They are mentioned here because of the importance of the park and of these mammals for the eco-tourism. These species are: the hunchbacked whales (Megaptera novaeangliae), a migratory species coming from the north and which comes to give birth to the Samand bay. This species appeals to tourists in the April to June season. In this bay there are also two species of dolphins: the common dolphin (Delphinus delphis) and the bottleneck dolphin (Tursiops truncatus). 89 Table 4.5 Mammals registered in the zone studied Area Order Family Species Common 1 2 3 4 Habitat Observations name Capromyidae Plagiodontia Jutia * * 1 Vulnerable aedium Rodentia Mus musculus Mouse _ a _ * 1, 2 Introduced Muridae Rattus Rat 1 _ _ * 1,2 Introduced norvegicus _______ Rattus rattus Rat * * * * 1,2 Introduced Insectivora Solenodontidae Solenodon Solenodonte _ _ 1 Endemic paradoxus Noctilionidae Noctilio Fishing bat _ 2, 3, 4 leporinus Chiroptera Artibeus Fruit bat * a * * 1, 2 jamaicensis Phyllostomidae Macrotus Big-ear bat * * * * 1, 2 waterhousii Monofillus Bat * _ _ * 1, 2 redmani Canidae Canisfamiliares Wild dog _ _ * 1, 2 Introduced Camivora Felidae Felis catus Wild cat * * _ 1, 2 Introduced Herpestidae Herpestes Ferret _ _ 1, 2 Introduced aeropunctatus _ _ _ Marine mammals of the National Park Los Haitises Ballenopteridae Megaptera Hunchbacked * _ 4 Migratory novaeangliae whale Cetacea Delphinidae Delphinus Dolphin _ * 4 delphis _ _____ Tursiops Bottleneck * 4 truncatus Dolphin Sirenia Trichechidae Trichecus Manatee * * 4 Endangered manatus Notes: Habitat: I = Forests. 2 = Open areas. 3 = Water. 4 = Marines and estuaries. 90 Similarly, in this zone the manatee has been registered (Trichecus manatus), an endangered species, very rare in the zone. It is also considered of great importance for eco-tourism. * Reptiles The group of reptiles is represented in the influence are of the road by six species of wall lizards, tow of which were observed on the road. The first of them, the common wall lizard (Ameiva chrysolaema) belongs to the Teidae family, abundant in open areas and of low plants (See picture 15) and by the green lizard (Anolis chlorocyanus) of wooden areas and belonging to the Iguanidae family (See picture 16); to this same family belong the four other species (Anolis distichus, Anolis cybotes, Anolis baleatus and Leiocephalus personatus). Three species of snakes have been recorded (Antillophys parvifrons, Uromacer castebyi and Epicrates striatus). All these species are widely distributed along the road. We can also find hicatees (turtles) (Chrysemis decusata). Table 4.6 shows the list of reptile species. * Amphibious Three species of amphibious have been registered for the ponds and other bodies of water in the region. They are the common toad (Bufo marinus) and two species of frogs. (Hyla pulcrilineata and Osteopilus dominicensis). These species are abundant and present a wide distribution. Table 4.7 presents the list of amphibious species * Fish In the region studied two species of endemic fish have been recorded: the Guabina (Gobiomorus dormitatus) and the Mampete (Dormitator maculatus). Besides, there are other species as the eel (Anguilla rostrata), 'tilapia' (Tilapia mossambica), introduced and the 'mirror carp' (Cyprinus carpio), also introduced and cultivated in ponds and lakes. These species are a source of proteine for the peasant population. Table 4.8 lists the species of fish found. 91 Table 4.6 Reptiles recorded in the zone studied Area Order Family Species Common 1 2 3 4 Habitat Observations Name Teiidae Ameiva Common lizard * * * 1, 2 chrysolaema Anolis Green lizard * * * * 2 chlorocyanus Lacertilia Anolis distichis Wall Lizard * * * 1, 2 Iguanidae Anolis cybotes Lizard I . _ 1, 2 Anolis baleatus Salta cocote * _ Leiocephalus Marigulanita * * 1 personatus Chelonia Emydidae Chrysemis Hicatee- turtle * _ _ 3 Threatened decusata Colubridae Antillophys Plain snake * _ * 2 parvifrons Squamata Colubridae Uromacer Green snake * * * 2 castebyi _ _____ Boidae Epicrates striatus Javada snake * * * * 2 92 Table 4.7 Amphibious recorded in the zone studied Area Order Family Species Common 1 2 3 4 Habitat Observations name Bufonidae Bufo marinus Toad * * 2, 3 Anura Hylidae Hylapulcrilineata Frog * * _ 3 Osteopilus Frog * * * 3 dominicensis Table 4.8 Fish recorded in the zone studied Area Order Family Species Common 1 2 3 4 Habitat Observations name Gobiomorus Guabinal * * * 3 dormitatus Dormitator Mampete * 3 maculatus I Anguilliformes Anguillidae Anguilla Eel _ * a 3 Introduced rostrata Percomorphida Cichlidae Tilapia Tilapia * 3 Introduced mossambica Cypriniformes Cyprinidae Cyprinus carpio Mirror Carp * _ _ 3 Introduced 93 4.23Hydro-biologic Characterization * Conceptual Framework All living organism have some preferences or demands regarding the various physical-chemical and biotic factors of the environment. Animals and plants that show the same preferences are gathered in associations called biocenosis. Aquatic means are so colonized by animal and plant populations, which structure responds to a certain balance, under normal conditions. When there is a disruption in the means, a deep disorder in the population structures takes place, disorder which is stated by a change of the relative dominance of the different species, accompanied by substitutions in fauna and flora, which may reach the complete disappearance of the biocenosis, when the disruption is to drastic. One of the main causes of such degradation in the eco-systems is the pollution resulting from human activities that produce some waste that cannot be eliminated without causing serious harm to nature. With an excessive frequency freshwaters are used as a means to dispose the useless products coming from industry, agriculture and human and animal metabolism. Given the importance of water for life and in general for humankind, it is vital to preserve its quality and to do so it is necessary to detect the sources of pollution and to determine their incidence on the recipient means, so as to establish the measures to take in order to solve these problems. Constant progress of industrial chemistry and of the industry in general, lead to the formation of residual products which chemical nature is difficult to identify, even with the help of the most advanced analytic methods and techniques. On the other hand, when waste is sporadically dumped or when waste quality is variable, said detection implies a series of essays and longer time of analysis, with higher economic costs. The study of the biocenosis structure that survive in a polluted means in general does not provide information of the exact nature of the perturbing agent, but it allows to suspect from one or several contamination sources in those cases in which the 94 physical-chemical techniques are non operative and at any rate, they are a supplement for the same. In addition, biological data provide a base to calculate the antibiotic quality of the affluent and therefore, it provides a valid appraisal of its toxicity. Under normal conditions, in aquatic eco-systems there is a series of organisms that exploit different food possibilities, forming a complex trophic network, of especial complexity in the tropical eco-systems. In each biocenosis, there are species with strict demands regarding one or several factors of the means, that is, that can stand only small variations of said factors, being for this reason, considered as stenoic. On the contrary, organisms able to adapt to great changes of the same factor are called eurioic. Therefore, a natural or accidental disturbance may cause a disorder of the trophic networks, in such a way that changes in the biocenosis are produced and even some species may completely disappear, simplifying thus the biodiversity, as said changes produces a selection against the stenoic organisms and in favor of the eurioic, which proliferate. The diversity of the biocenosis therefore allows evaluating the quality conditions of the waters where they live. * Methodological Aspects To evaluate the biotic quality of waters supplementary methods were used: the first was the diversity indexes and the second, the biotic indexes. The method of the diversity indexes is based on the premise that under normal conditions biocenosis present a structure made up of a relative bid number of species, represented by relatively few individuals each one. When disturbances occur, this balance is broken, disappearing first the most sensitive species, and the most resistant one start to proliferate. Under critical conditions, biocenosis presents very few species with an important number of individuals of each one, having passed therefore from communities with high biodiversity to another with low or very low biodiversity. 95 To quantify biodiversity several mathematical indexes are used. The consultant prefers to use the Brillouin index (Cited in Margalef, 1978) that should be compared then with the Indexes of maximum and minimum theoretical diversity, proposed by Tuffery and Vemeaux (1979), so as to determine the real diversity, according to the following equations: Where: B = Brillouin's Diversity Index. D. max. = Maximum theoretical diversity. d. mim. = Minimum theoretical diversity. R = Tuffery & Vemeaux Coefficient of Redundancy. N = Number of individuals. S = Number of species. Ni = Number of individuals of species i Index 1-R varies between 0 and 1, the higher the value means that the quality of water is better. The method has the advantage that identifying the organisms does not require to know exactly the names of the species for its application, but it has the limitation that 96 in some groups of organisms, there is a great similarity in species related, then, there may be a trend to underestimate the indexes, when these species are present. On the other hand, the method of the biotic indexes is a synthetic process of characterizing water quality and not to make the relevant analytic research of auto- ecology of aquatic organisms. The water quality study in a given point is made based on the macro-invertebrates that colonize the substratum, the column of water or they live in the superficial film of the same, and which are subject to eventual fluctuations in the quality of the aquatic environment. No biotic indexes have been established for the algae of the plankton or Periphyton, and for this reason they are not used for the analysis. The following step is to determine systematically the organisms, previously establishing, when applicable, the family, the gender or species, previously defining the precision limits as systematic units. Depending on the various taxonomic groups the limits are established, taking into account, on the one hand, the diversity of genders and species in the order, in the regional fauna, and lastly, the difficulties for their taxonomic determination Once the identification is made, indexes are calculated using double entry tables, placing in the columns the number of systematic units by ranges, and in the rows the fauna groups, which are classified based on their survival in polluted waters. The method has the advantage of being relatively easy to apply and combine indirect biodiversity measures with the bio-indicators as such. One of its disadvantages for its use in the Dominican Republic is the ignorance of the exact systematic units, and the fauna groups to be used as water quality indicators, since standard tables are built based on organisms existing in European rivers and there amn't any for tropical countries. The opinion regarding the biotic quality of water after analyzing each flow, corresponds to a synthesis of prior methodologies, and does not necessarily correspond to the physicochemical quality of the water analyzed in terms of potability, irrigation use, or other purposes that may be required. 97 Samples of aquatic macro-invertebrates of the benthos, surface film or neuston were carried out by means of an entomological 'jama', collected from the substrata when it was sandy as well as from rocks, in both cases in an area of 625 cm2 (a square with 25 cm sides). In addition, a Periphyton sample was obtained by scraping the substrata in an area of 400 square cm. These samples were preserved in a solution of 70% ethyl alcohol and then transported to the laboratory for microscopic analysis. The following source materials were used for the taxonomic identification of organisms: Aristizabal (2002), Polhemus (1997), Merrit & Cummins (1996). In the case of the Periphyton, for identification to the level of genus, the keys from Fernandez (1980), Parra et. al. (1983) y Loretto & Tell (1995) were utilized. * Places from which samples were obtained: Samples of these organisms were taken from the main currents that cross or border the road. These currents were as follows: - Yuna River. - The Aglypo project irrigation channel. - Guaraguao River. - Boyd River. - Lim6n Stream. - Yavi Stream. - Yabacao River. * Analysis of the results The results are as follows, first for the aquatic macro-invertebrates and then for the Periphyton alga, so that an opinion may be rendered with regard to the biotic quality of the waters of each of the currents sampled. - Yuna River Representatives of nine species of aquatic macro-invertebrates were taken from this body of water. Two of these are normal inhabitants of the water's surface film, or neuston, one species is a common inhabitant of the water column or nekton while the rest are inhabitants of the sediment or benthos. Among the former, the hemipteran Limnogonus franciscanus has been recorded by Niesser (1970) in the Antilles; the other species is the coleopteran Dineutus sp. The presence of these organisms in the surface film indicates very clearly that there are no problems with pollution in these 98 waters from substances such as detergents, because these animals could not survive on waters having a reduced surface tension. Nor is there pollution from grease and oils, which tend to form monomolecular layers on the water's surface film and, therefore, very small quantities occupy large surface areas, thus leading to physical occupation of the habitat of these organisms. The list of macro-invertebrates collected is shown in Table 4.9. In this table it may also be observed that there is a relative dominance of dipterans of the Chironomidae family, which generally tend to be abundant in waters having high levels of organic material, and are thus indicators of mesoeutrophic waters. However, this dominance is not very large in this case. Table 4.9 Macro-invertebrates collected from the Yuna River Class Order Family Species No. % Indicates water is Insect Hemipteran Gerridae Limnogonusfranciscanus 6 6.59 Mesotrophic Naucoridae Limnocoris sp. 3 3.30 Oligotrophic Trichopteran Hydropsychidae Hydropsiche sp. 9 9.89 Oligomesotrophic Coleopteran Gyrinidae Dineutus sp. 2 2.20 Not used Elmidae Ampumixis sp. I 1.10 Not used Cylloepus sp. 4 4.40 N. D. Dipteran Chironomidae (Chironominae) 21 23.07 Mesoeutrophic I____ _______ (Podonominae) 43 47.25 Mesoeutrophic Gastropod Bassomatophora Physidae Physa sp. 2 2.20 Not used Total 91 100 In the case of the periphyton alga, there is dominance by the Chlorella alga sp., which is generally an indicator of waters that are eutrophic or have a high organic content. However, there are also organisms that are indicators of oligotrophic and oligomesotrophic waters. Table 4. 10 shows the list of periphyton organisms. Table 4.10 Periphytic algae collected from the Yuna River Class Order Family Species No. % Indicates water is Cyanophyceae Nostocales Nostocaceae Lyngbya sp. 163 9.57 Oligotrophic Oscillatoria sp. 147 8.63 Oligomesotrophic Bacillariopyceae Pennales Diatomaceae Synedra sp. 25 1.47 Mesotrophic? Naviculaceae Navicula sp. 64 3.76 Oligomesotrophic Chlorophyceae Chlorococcales Oocysteaceae Chlorella sp. 898 52.73 Eutrophic Zygophyceae Zygnematales Desmidiaceae Cosmarium sp. 134 7.87 Oligotrophic Closterium sp. 93 5.46 Oligomesotrophic Zymemataceae Spirogyra sp. 179 10.51 Oligotrophic 99 Total 11.703 1100 The rates of diversity found for the macro-invertebrates were as follows: B = 1.43 B = 2.02 D = 0.39 1-R = 0.63 The biotic rate for the sample is 6 The diversity indexes found with respect to the periphyton alga are as follows: B = 1.54 B = 2.06 D = 0.31 I-R = 0.74 From these results it may be stated that the biotic quality of this water is acceptable and that while there must be some organic charge. there are no worrisome signs of pollution. These waters may be classified as being mesotrophic. - Aglypo project irrigation channel The waters sampled from this irrigation channel come from the Yuna River and. with respect to the category of surface film (or neuston) organisms. show the presence of the hemipteran Hidrometra sp.. which as a bio-indicator has the same characteristics as the species referred to for the surface film of the previous sample. A total of seven representative species were collected. among which the dipterans Stilobezzia sp. and Culex sp.. indicative of mesoeutrophic waters. are dominant. Table 4.11 gives the taxonomic list of the organisms found. With regard to the periphytic alga. organisms from 18 species were found. among which the dominant member is the chlorophyceae Selenastrum sp. whose value as a bio-indicator has not been determined in the available literature. Alga that are representative of different trophic typologies were found. which is interpreted as the manner in which these species show wide ranges of tolerance. The results of this sample are given in Table 4.12. Table 4.11 Macro-invertebrates collected in the Aglypo project irrigation 100 channel Class Order Faniily Species No. % Indicates water is Insect Hemipteran Hydrometridae Hydrometra sp. 5 7.35 Mesotrophic Odonata Corduliidae Somatochlora sp. 2 2.94 N. D'. Gomphidae Gomphus sp. 7 10.29 Oligomesotrophic Coleopteran Hydrophilidae Tropisternus sv. 1 1.47 Not used .~ ~ ~~~~~~~~ ~P No use Dipteran Ceratopogonidae Stilobezzia sp. 39 5 7.35 Mesoeutrophic Culicidae Culex sp. 12 17.65 Mesocutrophic Gastropod Bassomatophora Physidae Physa sp. 2 2.94 Mesoeutrophic Total 68 100 N. D. Not determined. 2: Refers to organisms that are normally very adaptable to different conditions and are thus of little use as indicators of water quality. The diversity indexes found for macro-invertebrates were as follows: B = 1.18 B = 1.78 D = 0.37 1-R = 0.58 The biotic indicator for the sample is 5 The periphyton indexes obtained for the periphyton alga were as follows: B = 1.97 B = 2.87 D = 0.05 1-R = 0.68 Despite the fact that we are dealing with water from the Yuna River. the significant differences between the results obtained from the river and those of the channel are for the most part due to the change in the more mature substrata. with sediments coming mostly from the basin and in the annals of the earth. with a substrata not yet enriched with these sediments. as well as changes in the hydraulic conditions. It may be concluded that this water has an acceptable biotic quality. Table 4.12 Periphytic algae collected in the Aglypo project irrigation channel Class Order Family Species No. % Indicates water is Cyanophyceae Nostocales Nostocaceae Lynb 67 2.60 Oligotrophic 101 Spirulina sp. 82 3.19 N. D. Bacillariopyceae Centrales Talassiosiraceae Aulacoseira sp. 155 6.02 N. D. Pennales Diatomaceae Ceratoneis sp. 62 2.41 N. D. Fragillaria sp. 12 0.47 Mesotrophic Synedra sp. 1 7 0.27 Mesotrophic? Synedra sp. 2 38 1.38 Mesotrophic? Nitzschiaceae Nitzschia sp. 247 13.49 N. D. Naviculaceae Amphora sp. 35 1.36 Fast-flowing waters Gomphonema 49 0.54 N. D. Sp. Navicula sp. 1 46 1.79 Oligomesotrophic Navicula sp. 2 100 3.89 Oligomesotrophic Navicula sp. 3 11 0.43 Oligomesotrophic Chlorophyceae Chlorococcales Oocysteaceae Selenastrum sp. 256 43.88 N. D. Scenedesmaceae Scenedesmus sp. 34 1.32 N. D. Zygophycacae Zygnematales Zygnemataceae Spirogyra sp. 79 3.07 Oligotrophic Ulothricopycaceae Chaetophorales Chaetophoraceae Chaetophora sp. 311 12.09 N. D. Ulothricales Ulothricaceae Ulothrix sp. 44 1.71 N. D. Total 2.573 100 Guaraguao River: Samples from this current were taken at the outlet of the mountainous area of Los Haitises, downstream the town of Guaraguao. No samples of surface film organisms were found or observed in this area. thus indicating possible spillages of sewage waters containing detergents and grease. In this current it was found dominance of dipterans of the Chironomidae family. making up nearly 90% of total organisms. These are indicators of mesoeutrophic conditions. Are shown in Table 4.13. Table 4.13 Macro-invertebrates collected from the Guaraguao River Class Order Family Species No. % Indicates water is Insect Lepidoperan Pyralidae N.D. 3 1.81 Not used Odonata Corduliidae Somatochlora sp I 0.60 N. D. Coleopteran Elmidae Neocylloepus sp. 4 2.41 Not used Limnychydae N.D. 7 4.22 Not used Dipteran Chironomidae (Chironominae) 34 20.48 Mesoeutrophic (Orthocladinae) 115 69.28 Mesoeutrophic Mollusk Bassomatophora Physidae Physa sp. 2 1.20 Mesoeutrophic Total 166 100 102 The diversity indexes found for macro-invertebrates were as follows: B = 0.89 B = 1.86 D = 0.18 1-R = 0.42 The biotic index for the sample is 5. Representatives of 10 species of periphytic alga were collected. The dominant species among these was Navicula sp. with almost 62% of the sample's total. This serves as an indicator of oligomesotrophic waters. Table 4.14 shows the results of the periphyton sample in this river. Table 4.14 Periphytic alga collected from the Guaraguao River Class Order Family Species No. % Indicates water _____________ ~~~~~~~~~~~~~~~~~is Cyanophyceae Nostocales Nostocaceae Oscillatoria sp. 2 0.66 Oligomesotrophic Bacillariopyceae Centrales Talassiosiraceae Aulacoseira sp. 10 3.28 N. D. Pennales Diatomaceae Diatoma sp. 16 5.25 N. D. Fragillana sp. 6 1.97 Mesotrophy Nitzschiaceae Nitzschia sp. 48 15.74 N. D. Achnantbaceae Achnanthes sp. 4 1.31 N. D. Naviculaceae Amphora sp. 22 7.21 Fast-flowing waters Gomphonema sp. 3 0.98 N. D. Navicula sp. 189 61.97 Oligomesotrophic Pinnularia sp. 5 1.64 N. D. Total 305 _ The diversity indexes obtained for periphyton alga were as follows: B = 1.26 B = 2.23 D = 0.17 1-R = 0.53 Using these results, this current may be classified as eficient biotic quality of waters. The washing of vehicles was observed in these waters. This is a very deplorable habit, since it contaminates the rivers, and is quite common in the Dominican Republic. in so far as it was observed in many of the places where current crossings intersect with roads. * Boyi River 103 Specimens of Rhagovelia collaris. were collected in this current. This is a variety already recorded in the Dominican Republic by Polhemus (1998), and is an indicator of good conditions in the surface film of the water. A total of 11 representatives of aquatic macro-invertebrates were found. The dominant species was Probezzia sp.. a ceratopogonidae that is an indicator of mesoeutrophic waters, made up of 50% of the captured population. The majority of the other organisms. however. are species that are indicators of oligomesotrophic waters. Table 4.15 shows the results of this sample. Table 4.16 shows the results of the periphyton sample. Here it may be observed that there is no clear dominance by a single species among the 15 species collected. The most abundant was Aulacoseira sp.. with almost 37%, whose usefulness as a bioindicator has not yet been determined. The diversity indexes obtained for macro-invertebrates were as follows: B = 1.56 B = 2.21 D = 0.44 1-R = 0.63 The biotic index for the sample is 8. Table 4.15 Macro-invertebrates collected from the Boyi River Class Order Family Species No. % Indicates water ______________ ~~~~~~~~~~~~~~~~~~~~~~is Insect Hemipteman Veliidae Rhagovelia collaris 15 13.39 Oligotrophic Naucoridae Criphocricos sp. 2 1.79 Oligotrophic Limnocoris sp. 16 14.29 Oligotrophic Ephemeroptera Leptophlebiidae Tharulodes sp. 5 4.46 Clean n Trichopteran Glossosomatidae Glossosoma sp. 1 0.89 Oligomesotrophic Hydropsychidae Hydropsiche sp. 3 2.68 Oligomesotrophic Coleopteran Limnychydae N. D. 7 6.25 N. D. Dipteran Ceratopogonidae Probezzia sp. 49 50.00 Mesoeutrophic Psychodidae Maruina sp. 4 3.57 Oligotrophic Tipulidae Pilaria sp. 2 1.79 N. D. 104 Aracnida Araneida Pisauridae N. D. I 0.89 N. D. I Total 1105 1100 | Table 4.16 Periphytic alga collected from the Boya4 River Class Order Family Species No. % Indicates water is Cyanophyceae Nostocales Nostocaceae Lyngbya sp. 1 41 3.28 Oligotrophic Lyngbya sp. 2 11 0.88 Oligotrophic Lyngbya sp. 3 14 1.12 Oligotrophic Oscillatoria sp. 10 0.80 Oligomesotrophic Spirulina sp. 1 28 2.24 N. D. Spirulina sp. 2 4 0.32 N. D. Bacillariopyceae Centrales Talassiosiraceae Aulacoseira sp. 461 36.85 N. D. Pennales Diatomaceae Fragillaria sp. 35 2.80 Mesotrophic Synedra sp. 7 0.56 Mesotrophic? Tabellaria sp. 61 4.88 Oligomesotrophic Nitzschiaceae Nitzschia sp. 128 10.23 N. D. Achnanthaceae Achnanthes sp. 1 188 15.03 N. D. Achnanthes sp. 2 44 3.52 N. D. Cocconeis sp. 138 11.03 N. D. Naviculaceae Caloneis sp. 81 6.47 N. D. Total 1251 100 The diversity indexes found for the periphyton algae were as follows: B = 1.91 B = 2.60 D = 0.08 1-R = 0.73 This water could be considered as having good biotic quality. given the bioindicators and the diversity and biotic indexes. * Lim6n Stream Of the total of 11 macro-invertebrate species found. three were hemipterans from the surface film: Rhagovelia collaris. Limnogonus franciscanus and Trepobates taylori. the three recorded in the Dominican Republic. In this sample. there was no clear dominance by any of the species. The greatest number of organisms was for the simuliidae, with 34% of the total, and which are only abundant well-oxygenated waters, having an oligotrophic character. The next most abundant species were the chironomidae with 29%, which serve as an indicator of mesoeutophic waters. Table 105 4.17 shows the results for this sample. Table 4.18 shows the results for the periphyton sample, with 9 species among which none is clearly dominant. The diversity indexes obtained for macro-invertebrates were as follows: B = 1.67 B = 2.26 D = 0.32 I-R = 0.70 The biotic index for the sample is 6. The diversity indexes found for the periphyton alga were as follows: B = 1.90 B = 2.10 D = 0.20 1-R = 0.89 Table 4.17 Macro-invertebrates collected from the Lim6n Stream Class Order Family Species No. % Indicates water is Insect Hemipteran Veliidae Rhagovelia collaris 6 3.87 Oligotrophic Gerridae Limnogonus franciscanus I 0.65 Mesotrophic Trepobates taylori 2 1.29 Oligotrophic Naucoridae Limnoconis sp. 7 4.52 Oligotrohic Ephemeroptera Leptophlebiidae Tharulodes sp. 6 3.87 Clean nI Paraleptophlebia sp. 9 5.81 N. D. Coleopteran Elmidae Heterelmis sp. 4 2.58 Not used Salpingidae N.D. 2 1.29 N. D. Dipteran Chironomidae (Orthocladinae) 45 29.03 Mesoeutrophic Simuliidae Prosimulium sp. 52 33.55 Oligotrophic Psychodidae Maruina sp. 21 13.55 Oligotrophic Total 155 100 Table 4.18 Periphytic alga collected from the Lim6n Stream Class Order Family Species No. % Indicates water is Cyanophyceae Nostocales Nostocaceae Lyngbya sp. 14 6.70 Oligotrophic Oscillatonia sp. 34 16.27 Oligomesotrophic Bacillariopyceae Pennales Nitzschiaceae Nitzschia sp. 21 10.05 N. D. 106 Achnanthaceae Achnanthes sp. 7 3.35 N. D. Naviculaceae Gomphonema sp. 11 5.26 N. D. Navicula sp. 1 9 4.31 Oligomesotrophic Navicula sp. 2 56 26.79 Oligomesotrophic Ulothricopycaceae Chaetophorales Chaetophoraceae Chaetophora sp. 38 18.18 N. D. Microsporaceae Microspora sp. 19 9.09 N. D. Total 215 100 This water may be categorized as being of good biotic quality and oligomesotrophic type. * Yavi Stream Representatives of 11 macro-invertebrate species were collected in this sample, with dominance by the efemeropteran Leptohyphes sp. making up almost 60% of the captured population. These organisms are found in waters that are clean or slightly contaminated. Two species were collected from the surface film: Rhagovelia collaris and Rheumatobates meiner. This last species was recorded for Haiti, but this is the first time that it has been found in the Dominican Republic. They indicate. as described earlier, good quality in the waters in the surface film. Table 4.19 shows the list of the species collected. Indicators for oligo-mesotrophic waters predominate. Table 4.19 Macro-invertebrates collected in the Yavi Stream Class Order Famnily Species No. % Indicates water is Insect Hemiptema Veliidae Rhagovelia collaris 2 2.68 Oligotrophic Gerridae Rheumatobates meinerti 3 1.79 Oli omesotrophic Coleopteran Curculionidae Auleutes sp.? 1 0.89 Not used Elmidae Heterelmis sp. 4 3.57 Not used Stenelmis sp. 6 5.36 N. D. Ephemeroptera Baetidae Baetis sp. 9 8.04 Clean n Trycorythidae Leptohyphes sp. 67 59.82 Slight contamination. Trichopteran Hydropsychidae Hydropsiche sp. 2 1.79 Oligomesotrophic Leptonema sp. 4 3.57 Oligomesotrophic Dipteran Athericidae N.D. 11 9.82 N.D. Arachnoidea Acari Hydrachnidae N.D. 3 2.68 Not used Total 112 100 With respect to the periphytic alga. there is a clear dominance by the bacilariopyceae Acananthes sp.. whose role as a bio-indicator has not yet been determined, and which represents 64.26% of the cells in the sample. Table 4.20 shows he results of this sample. 107 Table 4.20 Periphytic alga collected from the Yavi Stream Class Order Family Species No. % Indicates water is Cyanophyceae Nostocales Nostocaceae Lyngbya sp. 25 2.44 Oligotrophic Bacillariopyceae Centrales Talassiosiraceae Aulacoseira sp. 67 6.54 N. D. Pennales Diatomaceae Synedra sp. 32 3.13 Mesotrophy? Achnanthaceae Achnanthes sp. 658 64.26 N. D. Naviculaceae Amphora sp. 36 3.52 Fast-flowing waters Zygophyceae Zygnematales Desmidiaceae Cosmarium sp. I1 1.07 Oligotrophy? Closterium sp. 54 5.27 Oligomesotrophic Ulothricopycaceae Oedogoniales Oedogoniaceae Oedogonium sp. 2 0.20 N. D. Ulothricales Ulothricaceae Ulothrix sp. 139 13.57 N. D. Total 1024 100 The diversity indexes rates found for the macro-invertebrates were as follows: B = 1.37 B = 2.22 D = 0.42 1-R = 0.53 The biotic index for the sample is 6. The diversity indexes obtained for the periphyton alga were as follows: B = 1.24 B = 2.17 D = 0.05 1-R = 0.56 Given the species collected as well as the diversity and biotic indexes, it can be concluded that this water shows an acceptable biotic quality. * Yabacao River A total of 341 macro-invertebrates belonging to 13 species were taken from this current. One of these, Rhagovelia collaris. is from the surface film, and its value as a bioindicator has already been discussed. The dominant species is a chironomidae with almost 46% of the total. It is an indicator of mesoeutrophic waters and despite the fact that there are other species that also indicate the same, in this case being the 108 dipterans, there is a balance here with respect to the presence of species that serve as indicators for oligotrophic waters and clean waters. Table 4.21 shows a list of the species collected. With respect to the periphyton alga. representatives of eleven species were collected, among which the usefulness of the majority as bioindicators for water quality has not been determined. The dominant species was Melosira sp., with almost 42%, as shown in Table 4.22. The diversity indexes obtained for macro-invertebrates were as follows: B = 1.78 B = 2.40 D = 1.87 1-R = 0.72 The biotic index for the sample is 8. The diversity indexes obtained for the periphyton alga were as follows: B = 1.85 B = 2.33 D = 1.14 1-R = 0.78 Table 4.21 Macro-invertebrates collected from the Yabacao River Class Order Family Species No. % Indicates water is Insect Hemiptema Veliidae Rhagovelia collanis 9 2.64 Oligotrophic Ephemeropteran Baetidae Dactylobaetis sp. 21 6.16 Clean Trichopteran Glossosomatidae Glossosoma sp. 55 16.13 Oligotrophic Helicopsichidae Helycopsiche sp. 4 1.17 Oligomesotrophic Colepoteran Gyrinidae Dineutis sp. 6 1.76 N. D. Elmidae Elsianus sp. 9 2.64 Not used Odonata Calopterygidae Hetarenia sp. 28 8.21 Oligomesotrophic Corduliidae Williamsonia sp.? 14 4.11 N. D. Dipteran Ceratopogonidae Atrichopogon sp. 5 1.47 Oligomesotrophic Chironomidae (Orthocladinae) 156 45.75 Mesoeutrophic (Prodiamesinae) 17 4.99 Mesoeutrophic Tipulidae Limonia sp. 12 4.40 Mesotrophic 109 I | | ~~~~~~~~Molophilus sp. |5 |0.59 |Mesoeurpi I|Total | 341 | 100 | Table 4.22 Periphytic algae collected from the Yabacao River Class Order Family Species No. % Indicates water is Cyanophyceae Nostocales Nostocaceae Lyngbya sp. 42 10.32 Oligotrophic Oscillatoria sp. 16 3.93 Oligomesotrophic Spirulina sp. 25 6.14 N. D. Bacillariopyceae Centrales Talassiosiraceae A ulacoseira sp. 25 8.60 N. D. Melosiraceac Melosira sp. 170 41.77 N. D. Pennales Achnanthaceae Cocconeis sp. 34 8.35 N. D. Naviculaceae Caloneis sp. 39 9.58 N. D. Gomphonema sp. 5 1.23 N. D. Frustulia sp. 18 4.42 N. D. Zygophyceae Zygnematales Desmidiaceae Cosmanum sp. 21 5.16 Oligotrophy? Ulothricopycaceae Ulothricales Ulothricaceae Ulothrix sp. 2 0.49 N. D. Total 407 100 It may be concluded from these results that the biotic quality of these waters is good. 4.3 SOCIAL ASPECT Figure 4.19 shows the political administrative division, and the project's integral socioeconomic influence. 4.3.1 Demographic Processes * Population settled in the area of the study The Dominican population at the year 2000 was estimated in 8,553,744, whereby the provinces directly affected by the project represented 39% of the population (3,393,497), and 16% of all the national territory, this allows to see the importance of the road for the Dominican Republic. The structure of the population for large groups of age and gender corresponds to the region of the study to the same existing population at the national level, where almost one half of the population is under 30 years of age, and where the working population exceeds 50%, prevailing the population between 15 to 64 years of age. The portion of young people in early ages (0 to 14 years) maintains a similar 110 behavior in all provinces with a total 44%, and the ages exceeding 65 years of age range between 3% and 4%. * Population density and urban - rural distribution While the population density at the national level is 149.90, the Distrito Nacional concentrates the largest density. It is important to note that Monte Plata, the province where the longest part of the road goes by, is the one with the lowest population density, with 63.50, well below the national average. Table 4.23 shows populations and densities of the provinces affected by the project. Regarding municipalities crossed by the road, such municipalities have a population of 230,880 people, representing 7% of the general population that have the provinces that form the project's regional zone of influence of the road. But its importance is not only measured by the number of inhabitants but rather, by the preponderant role that the municipalities of Nagua and Monte Plata play on the regional level as heads of their respective provinces, or as subregional heads, which is the case of Nagua with respect to Samana. Table 4.24 shows the populations of these municipalities. Table 4.23 Towns and population densities Provinces Population 1993 Surface Km2 Density (Inhab/Km2) Distrito Nacional 2,193,046 1,400.79 1,565.60 Duarte 281,879 1,605.35 175.60 Samana 75,253 853.74 88.10 Monte Plata 167,148 2,632,14 63.50 Maria Trinidad Sanchez 124,957 1,271,71 98.30 Total Country 7,293,90 48,670,82 149.90 1 11 Figure 4.19 Political-Administrative Division and Socioeconomic Area of Influence 1 i I 0 ~ ~ ~ 0 l~~~~~~~~~~~~~~~~~ t- ' VF CONVENCION ES F.'.' .) I~ , ', - -, ~~~~~~~N¶~>.' '?. I I ESTUDIO DE IMPACTO AMBIENTAL DISEFO CARRETERA SANTO DOMINGO CRUCE !1 RINCON DE MOLINILLOS REPOJBLICA DOMINICANA - I j !t,IA1 A .-~~~~~ | , . , . p; i,U A:t'-01!,[ Table 4.24 General Population and No. of Homes (1993) Municipalities Population No. of Homes Monte plata 36,919 36,026 Bayaguana 30,706 29,617 Sabana Grande de Boyd 31,640 30,847 Arenoso 13,871 13,701 Villa rivas 33,514 33,141 Nagua 60,749 59,786 Sanchez 23,481 23,091 Total 230,880 226,209 With the exception of the Distrito Nacional, all provinces have the greatest level of population in the rural zones than in the urban zones, but with such a low population density that allows its settlers to distribute and disperse themselves all over the territory, with just small concentrations in the most important urban centers, such as the administrative center of Monte Plata, Bayaguana, Sabana Grande de Boyd, Don Juan and Espetalvillo; in the case of the province of Monte Plata. Table 4.25 shows the urban and rural population ratios. Table 4.25 Urban - Rural Population by Province Provinces Population 1993 Urban |_% Rural % Distrito Nacional 2,193,046 1,609,046 73 583,080 27 Duarte 281,879 147,129 51 137,750 49 Samana 75,253 23,159 30,5 52,094 69,5 Monte Plata 167,148 51,393 31 115,755 69 Maria Trinidad Sanchez 124,957 41,499 33 83,458 67 Total country 7,293,390 4,094,263 56 3,199,127 44 The municipalities studied have a high rural element in their population, as a common denominator. Sanchez y Sabana Grande de Boya have the lowest level, and they have 55% of their population in the countryside, the Municipio de Villa Rivas has the largest percentage with 86% of its population residing in the countryside, followed by Monte Plata with 66%. The urbanization process has grown, but it has been very slow, which indicates predominance of agricultural and livestock activities in this populations, and the low specific weight that other activities such as the agribusiness, trade and services have. Table 4.26 shows the rural indexes by municipality. 113 * Composition of population by gender The national index of manes recorded in the census of 1993 was 95 males for 100 females Maria Trinidad Sanchez y Samani have a higher portion of men with respect to women, in the same provinces there is an inverse ratio, in other words, more women than men. The migratory process study indicates that women emigrate in a greater proportion than men, and in addition, the growth rate of the Provincia Duarte (1.43) is higher than the rest, which provides emigrations to the other provinces, this evidences that the province is the head of the country's Northeast Region. Table 4.26 Urban-rural population according to municipality Municipalities Urban % Rural % Monte plata 12,594 33 24,325 66 Bayaguana 12,704 41 18,002 59 Sabana Grande de Boyd 14,334 45 17,306 55 Arenoso 3,021 22 10,850 78 Nagua 26,013 43 34,736 57 Sanchez 10,714 45 12,767 55 Villa Rivas 4,688 14 28,826 86 Table 4.27 shows the ratio between gender by provinces Table 4.27 Male/Female ratio by province Provinces Population 1993 Males Females Male Index Distrito nacional 2193046.00 1,015,462 1,177,584 86 Duarte 281879.00 136,430 145,449 94 Maria T. SAnchez 124957.00 63,851 61,106 104 SamanA 75253.00 38,362 36,891 104 Monte Plata 167148.00 83,074 84,074 99 114 All of these municipalities have a male index higher than the national average, which is 95 men per 100 women. In other words, municipalities have more men than women. Nagua and Sanchez stand out with an index of 103. This phenomenon can be explained my the migration process of women towards the country's large urban centers. Table 4.28 Population by sex, and male index, according to municipalities Municipalities Total Males Females Index Monte Plata 36.919 18.293 18.626 98 Bayaguana 30.706 15.423 15.283 101 Sabana Grande De Boyd 31.640 15.843 15.797 100 Arenoso 13.871 6.825 7.046 97 Nagua 60.749 30.799 29.950 103 Sanchez 23.481 11.933 11.548 103 Villa Rivas 33.514 16.932 16.582 102 * Population Dynamics There are three components that have a bearing on population changes: births, deaths and migrations: On the decades of the 50s to 1981 the province of Samana had a moderate growth rate of 2.22, those who were born alive per 1,000 inhabitants (gross birthrate) allowed to see an extended fertility represented by 33.88% with a 3.81 mortality, that clearly evidences a deficient registration of this data. For 1981 census, migratory movements indicate that 90% of the population comes from or is native from Samana. This percentage is similar, and it is currently maintained in all provinces studied. Table 4.29 shows the births and deaths indicators, and it shows that for each death there are more than three births, the same happens in the remaining provinces, including the province of Samand for each death there are four births. Table 4.29. Birth and mortality indicators Provinces Live births 1998 Deaths 1998 115 Distrito Nacional 41,386 9,089 Duarte 4,070 1,504 Maria T. Sanchez 2,102 673 Samana 1,331 389 Monte Plata 1,690 585 But assuming that the migration flow of the provinces indicated is quite similar among them, with approximately a 30% emigration, then, it is seen that the net growth rate of the population is kept above the national average rate that is 2.3%, with the exception of Samana (1.33%) and Monte Plata (0.61%). Such high emigration rate is due, mainly because the provinces indicated are amongst the poorest provinces in the country and therefore, their population preponderantly young emigrates in order to search for a better standard of living (to study and to work). * Population by place of birth according to province Around 90% of the residing population was born in their province, this explains the great sense of belonging that exists in the population and the strength of local principles, such as the way of protecting and reproducing their socio-cultural identity Table 4.30 shows the population by place of birth according to province. Table 4.30 Population by place of birth according to province Provinces Population In the In this In another Abroad 1993 country province province Distrito Nacional 2,193,046 2,161,955 1,841,166 320,789 31,091 Duarte 281,879 279,821 253,632 26,189 2,058 Maria T. Sanchez 124,957 124,373 112,864 11,509 584 Samana 75,253 74,862 70,078 4,784 391 MontePlta 167,148 162,775 144,186 18,589 4 4.3.2 Public Services structure * Aqueduct 116 Of the 1,629,616 homes recorded in the 1993 national census, 67% received water supply through aqueducts; of these ones, 51% had installations inside the house, and 16% received water through community tap water (faucets), outside the house. 33% were not provided water by aqueduct. Table 4.31 shows the particular cases of the provinces studied. Samana and Maria Trinidad Sanchez have 37% of their households with aqueduct water and 63% without aqueduct water, this is self-explanatory. Provincia de Monte Plata followed the above with 41% of houses with aqueduct water, the Provincia Duarte with 59% and the Distrito Nacional with 87%. Table 4.32 shows the values of the population attended. Therefore, the aqueduct service is quite deficient for the region being studied. Table 4.31 Private homes occupied and water supply systems Water supply system Duarte % Maria T. % Sam:an % Monte Plata % Distrito % S~inchez Ncoa From aqueduct 36.267 59 11.055 37 6.414 37 15.043 41 442.072 87 Iside the house 31.672 86 9.245 84 4.527 70 11.730 78 321.682 76 Public faucet 4.595 14 1.810 16 1.887 30 3.313 22 120.390 24 From other place 25.279 41 18.465 63 10.950 63 21.568 59 70.629 13 TOTAL 61.546 _ 29.520 17,364 36,611 512.701 Table 4.32 Population in private homes by province and by water supply Water service Duarte Maria T. Samana Monte Plata Distrito Nacional Sanchez From aqueduct 166,886 48,154 27,959 68,508 1'871,650 Iside the house 146,763 40,653 19,755 55,340 1,388,683 Public faucet 20,123 7,501 8,204 13,168 482,967 From other place 109,500 75,032 46,107 92,394 283,794 TOTAL 276,383 123,186 74,066 160,902 2*155,444 * Lavatory and sewer service Of all houses recorded on the national level, 87% had lavatory in the following modes and percentages: * 34% individual lavatory * 9% collective lavatory * Individual latrines 117 * 14% Collective latrines. In order to see the situation of the provinces studied refer to Table 4.33. Table 4.33 Private homes occupied and lavatory service Lavatory Service Duatrte Maria T. Samani Monte Plata Distrito Nacional SAtnchez __ ___ With lavatory 53,883 24,502 14,536 23,151 485,293 Individual use lavatory 14,559 4,021 2,436 3,989 291,227 Collective use lavatory 2,765 575 541 685 80,778 Idividual use latrine 30,147 16,076 9,070 14,110 58,439 Collective use latrine 6,412 3,830 2,489 4,367 54,849 Does not have lavatory 7,663 5,018 2,828 13,460 27,408 Total 61,546 29,520 17,364 36,611 512,701 Of all homes recorded, 89% in Provincia Duarte, 86% in Maria Trinidad Sanchez, 86% in Samana, 67% in Monte Plata, and 93% in the Distrito Nacional, all of these have lavatories. The Provincia Duarte, Maria Trinidad Sanchez and Samana are around the national average, but Monte Plata is 20% below the national average, this reality places it in a very delicate sanitary situation. Table 4.34 shows the current situation of the sanitary service for homes occupied. Table 4.34 Type of sanitary service by province Lavatory Service Duarte Maria T. SamanA Monte Plata Distrito Nacional Siinchez With lavatory 68,093 17,759 10,592 18,127 1,273,674 Individual use lavatory 11,902 2,233 2,284 2,875 312,119 Collective use lavatory 140,012 70,055 40,806 68,859 259,708 Idividual use latrine 27,340 15,529 10,187 17,793 209,181 Collective use latrine 247,347 105,576 63,869 107,654 2,054,682 Does not have lavatory 29,039 17,610 10,197 53,248 100,762 Total 276,386 123,186 74,066 160,902 2,155,444 After several trips through the zone, it was verified that none of the municipalities and Municipal Districts that are part of the project's Direct zone of influence have any sanitary sewers or even sewage treatment. In the urban and rural zones there are latrines built over holes, which in many cases, are broken, that is why excrements are disposed into ground waters. 118 Therefore, in addition the aforementioned, inexistence of Treatment Plants in these municipalities, become an important source of contamination of surface and ground waters. * Solid Waste Collection, Disposal and Treatment A typical operation of all town councils is partial collection of solid waste and placing such waste into an open municipal dump, located in a distant zone, which is not located to far from the town. Normally, garbage is collected in three meter open trucks, one or two days a week. There isn't any classification made, except that waste is occasionally burnt, in the same dumps, bringing about, without this being intentional, the expansion of environmental pollution through the air. This system also brings about the presence of rodents and plagues of insects, that are potential vectors of infectious-contagious diseases, causing a serious sanitary problem. * Electric Power There has been great deficiency in the electric power service provision. In the Provincia de Duarte, 25.76% of the population lacked electric power service in 1993, in the Provincia Maria Trinidad Sanchez, the population that did not have this service reached 31.55%, in the Provincia de Samand this population without this service reached 47.43%, while in Monte Plata it reached 50.74%, which highly contrasts with the total of the Distrito Nacional, with 2.27%. Table 4.35 shows the values of the population by province and by type of electric service. Table 4.35 Population with electric power service by provinces Maria T. Monte Distrito Electric power service Duarte Plata Nacional With electric power service 205,185 84,323 38,936 79,264 2'107,586 Of the CDE 202,573 83,647 36,914 77,916 2,105,046 Electric plant 2,612 676 2,022 1,348 2,540 Without electric power 71,201 38,863 35,130 81,639 47,858 TOTAL 276,386 123,186 74,066 160,902 2'155,444 By homes the situation is as follows: Of all homes recorded, 73% in Provincia Duarte, 66% in Maria Trinidad Sanchez, 51% in Samana, 46% in Monte Plata, and 97% in the Distrito Nacional homes have electric lighting service. The Provinces of Monte Plata and Samand are the ones with the worse supply of electric power 119 service, followed by Maria Trinidad Sanchez, and lastly the province of Duarte. Less than half of te homes of Monte Plata have electric lighting service, as it is shown in Table 4.36 Table 4.36 Private homes occupied and electric power service Duarte Maria T. Samn, Monte Plt Distrito Electric power service Sanchez amana aa Nacional With electric power service 44,950 19,620 8,827 16,918 499,085 Of the CDE 44,425 19,483 8,402 16,647 498,495 Electric plant 525 137 425 271 590 Without electric power 16,596 9,900 8,537 19,693 13,616 Total 61,546 29,520 17,364 36,611 512,701 * Homes The national average established by the 1993 census is 4.37 persons per private home. All provinces studied are slightly below the population ratio by home, only in the province of Monte Plata the ratio is higher with 4.50 persons per home. Photograph 17 shows the typology of a rural home. Table 4.37 shows population and home ratios in the zone of the study. Table 4.37 Population and number of homes per province (1993 census) Private Ratio Provinces opulation __ Homes % P/H Distrito Nacional 2,193,046 30.07 512,701 31,46 4,28 Duarte 261,485 3,59 61,546 3,83 4,19 Samana 75,253 1,03 17,364 1,07 4,33 Monte Plata 167,148 2,2 36,611 2,2 4,50 Maria T. Sanchez 124,957 1,75 29,520 1,8 4,23 Total country 7,293,390 100 1,629,616 100 4,48 * Health In the Provincia de Duarte there is a health center for each 4,667 inhabitants; in the Provincia de Maria Trinidad Sanchez one for each 6,536 inhabitants, in the Provincia de Samand one for each 4,719 inhabitants and in Monte Plata one for each 6,888 inhabitants. While in the national level there is one Physician for each 935 120 inhabitants, in the aforementioned provinces is even greater, which demonstrates the low coverage that medical services have in these provinces. Table 4.38 shows the health indicators ratio. Table 4.38 Health indicators Provinces Population Health centers Physicians & paramedics Distrito Nacional 2,161,955 281 9,489 Duarte 279,821 66 1,483 Maria T. Sanchez 124,373 21 695 Samana 74,862 17 376 Monte Plata 162,775 25 554 In relation to other health indicators, it was established from the provinces studied, that Monte Plata is the province with the lowest number of physicians for each 10,000 inhabitants (13), followed by Maria Trinidad Sanchez and Duarte, both with 16 physicians for each 10,000 inhabitants. Those that have better conditions are Samana with 21 physicians and the Distrito Nacional with 23 physicians. Table 4.39 shows the health indicators. Table 4.39 Health human and physical resources according to provinces (1998) Provinces Physicians Nurses Bioanalysis Beds rovmces__________ (10000 people) (10000 people) (10000 people) (10000 people) Hospitals Distrito Nacional 23 26,0 5,0 9,0 24 Duarte 16 14,5 2,4 12,6 5 Maria T. Sanchez 16 22,2 3,9 12,2 4 Samand 21 50,6 1,6 20,8 4 Monte Plata 13 17,3 1,2 7,3 4 With respect to morbidity, it is presented with high values due to dengue fever, and tuberculosis and malaria to a lower extent. In newborns, the high index of low weight upon birth is worrisome, reflecting mothers' malnutrition. Table 4.40 shows the main causes of morbidity. Table 4.40 Morbidity recorded according to provinces (1998) Cause of morbidity Dengue Fever Malaria I Menin-g-itis I Leprosy Provinces Cases Rate/b Cases Rate/b [Cases Rate/b Cases Rate/b Distrito nacional 45 42.0 57 2.2 | 58 | 2.3 78 3.1 121 Monte Plata 67 31.9 2 1.2 5 2.9 8 4.6 Duarte 128 26.0 6 1.9 2 0.6 0 0.0 Maria Trinidad Sanchez 159 94.0 1 0.7 1 0.7 1 0.7 Samana 9 8.7 2 2.5 1 1.2 2 2.5 Continuation Cause of morbidity AIDS Tuberculosis Low weight upon birth Provinces Cases Rate/b Cases Rate/b Cases Rate/b Distrito nacional 204 8.0 858 33.8 3.262 78.8 Monte Plata 7 4.1 33 19.2 194 114.8 Duarte 2 3.0 - - 129 126.2 Maria Trinidad Sanchez 25 18.2 22 16.0 - - SamanA 5 6.2 13 16.2 161 12.0 With respect to morbidity rates, cardiovascular diseases are established as the first cause. Table 4.41 shows a list of such causes. Table 4.41 Morbidity recorded by groups of cause according to province (1998) Causes Deaths I caused Cardiovascular Transmissible causes Dsae Provincias No. No. % No. % No. % Distrito nacional 9.089 805 8,9 2.489 30,0 1.250 15,1 Monte Plata 585 80 10,3 178 33,0 100 19,0 Duarte 1.504 41 2,7 586 40,1 137 9,4 Maria Trinidad Sanchez 673 29 4,3 218 33,9 83 12,9 Samana 389 18 4,6 137 36,9 51 13,7 Continuation Causes Neoplasias Originated in the External All others auses________________ _______ perinatal period Causes Provincias No. % No. _ No. % No. % Distrito nacional 1,111 13.4 550 6.6 694 8.4 2,190 | 26.4 Monte Plata 64 12.2 12 2.3 28 5.3 143 27.2 Duarte 210 14.4 18 1.2 112 7.7 400 | 27.3 Maria Trinidad Sanchez 89 13.8 46 7.0 38 5.9 171 1 26.6 Samana 43 11.6 17 2.0 35 9.4 101 - 27.2 * Education For 1981, the illiteracy rate on the national level was 26%, the highest level is in the rural zone, a characteristic that is present in the provinces being studied. The illiteracy rate in Maria Trinidad Sanchez was 35.29% in 19811, the Provincia Duarte 122 has a similar percentage, and the Provincia de Samand has an even greater percentage. Illiteracy in men is higher than in women. According to the figures of the year 2000 there is a teacher for each 35 students in the Provincia Duarte, 37 in Maria Trinidad Sanchez, 43 in Monte Plata and in the Distrito Nacional, and 45 in Samana. All these are below the national average, except Samana that just has the national average, as it can be seen in Table 4.42 Table 4.42 Education indicators (1999 - 2000) Teaching Students Education Provinces staff Enrolled Centers Distrito nacional 17,357 752,612 2,282 Monte plata 1,376 58,894 514 Duarte 1,758 61,496 363 Maria trinidad Sanchez 504 18,881 154 Samana 392 17,788 134 TOTAL 21,037 909,671 3,797 The teacher / student ratio has substantially improved in the last 10 years, since at the beginning of the nineties the ratio was of one teacher for each 65-75 students. Especially, in Samana, Monte Plata and Maria Trinidad Sanchez. These provinces have traditionally shown high illiteracy rates, as a result of lack of investment in the school infrastructure. In the last two years, however, a schools construction process is shown in almost all communities that are part of these provinces, which will change, without a doubt, the fate of the residing population. There are adults literacy programs, supported by the State Education Secretariat, but they require to be extended in order to significantly reduce the existing levels of illiteracy. Municipalities have an illiteracy average of 29%, way above the national average. Only Nagua with 24%, has a percentage below the national average, which was 24.6% in 1993; the other municipalities have an illiteracy rate well above the national average, Sabana Grande de BoyA is the municipality with the highest illiteracy rate of the region, with 34%. Table 4.43 shows these indicators. 123 The urban level average is 19.43%, and the rural average is 30.5%, with an eleven points percentage difference with respect to the urban zone. Table 4.44 shows the Urban and Rural illiteracy data. There are no Professional and Technical Formation Centers. Demand for this type of training drives displacement processes towards regional or sub-regional urban centers, such as Nagua, San Francisco de Macoris, San Pedro de Macoris and Santo Domingo. Table 4.43 Population of 5 years of age and over by illiteracy conditions and percentage of illiterates, according to municipality Municipalities Total Illiterates Illiterates % Illiterates Monte Plata 31,831 22,552 9,279 29% Bayaguana 26,403 18,935 7,468 28% Sabana Grande de Boyd 27,320 18,140 9180 34% Arenoso 12,092 8,638 3,454 29% Nagua 53,027 40,183 12,844 24% Sanchez 20,310 14,949 5,361 26% Villa Rivas 28,963 20,394 8,569 30% Table 4.44 Population of 5 years and over due to illiteracy conditions and percentage of illiterates, according to municipality, and zones Municipalities Total Illiterates Illiterates % Illiterates Monte Plata 31.831 22.552 9.279 29 Urban Zone 10.875 8.333 2.542 23 Rural Zone 20.956 14.219 6.737 32 Bayaguana 26.403 18.935 7.468 28 Urban Zone 10.919 8.949 1.970 18 Rural Zone 15.484 9.986 5.498 36 Sabana Grande de Boya 27.320 18.140 9.180 34 Urban Zone 12.420 9.649 2.771 22 124 Rural Zone 14.900 8.491 6.409 43 Arenoso 12.092 8.638 3.454 29 Urban Zone 2.644 2.023 621 23 Rural Zone 9.448 6.615 2.833 30 Villa Rivas 28.963 20.394 8.569 30 Urban Zone 4.149 3.402 747 18 Rural Zone 24.814 16.992 7.822 32 Nagua 53.027 40.183 12.844 24 Urban Zone 22.921 19.247 3.674 16 Rural Zone 30.106 20.936 9.170 30 Sanchez 20.310 14.949 5.361 26 Urban Zone 9.271 7.206 2.065 22 Rural Zone 11.039 7.743 3.296 30 On the Higher Education level there are university extension campuses in the provinces of Monte Plata, Maria Trinidad Sanchez and San Francisco de Macoris. Only Samand does not have a university extension campus. 4.3.3 Cultural Aspects The numeral shows the cultural aspects of the existing population within the project's area of influence. It is important to clarify that aspects such as Demography (see numeral 4.3.1), Population's structural composition (see numeral 4.3.1), Settlement (see numeral 4.3.2), Health (see numeral 4.3.2), Education (seer numeral 4.3.2), supply-demand (see numeral 4.3.2), the numerals referred to are in parenthesis. Annex J (Socioeconomic Survey Summary) of this Document. * Community Organizations and Settlement Patterns In the direct zone of influence, the most important community organizations are those that represent rice and "yautia pipiota" (coconut) producers, and different religious leaders. On the south side of the road, the strongest organizations are those that draw together all small, medium and large groups of cattle farmers. Among these stand out: the Association for Small and Medium Cattle farmers, and the Campo Verde Plantations, los Haitises de Sanchez and the Association Yautia Pipiota Producers, also from Sanchez. 125 The main Decentralized agrarian settlement AC-46 of Lim6n del Yuna, as its name indicates, is managed in a decentralized manner, therefore, it requires a high degree of organization at the smallholders association level of la Reforma, Aguacate, Guaraguao and Cristal. All these associations are united under one smallholders Federation. Among these stand out the following: the Association for Small and Medium Size Cattl Farmers and the Campo Verde Plantations, los Haitises de Sanchez and the Association Yautia Pipiota Producers, also from Sanchez. The main office for this project is located at La Reforma, for this reason, this community will be used as the coordination center. However, it is important to point out that due to leadership development, the main leaders of the Federation live in Guaraguao. See Annex 1. * Relevant Historical Facts The communities were initially structured around specific production models, such as, the Sugar Industry, the occupation of land with specific agricultural potential and itinerant farming, and the official township seats of he State through the Dominican Agrarian Institute, in the rice zone. For this reason, the most relevant facts for these communities are the Crisis, and the transformation of the Sugar Industry, which took place towards the end of the 1980's and the 1990's in the 20th Century; and the implementation of the Agrarian Laws of 1972, which created a legal and institutional framework for the settlement of several communities such as Aguacate, la Mata, la Reforma and Guaragua. These communities, which were structured around specific agricultural and livestock production, and the State (IAD) settlement, have grown and have become Suburban towns, without paved streets and water drainage and sanitary sewer systems. Their isolation and difficult communication with the large urban centers, have limited their development, therefore, the construction of the Roadway is visualized by these towns as the most important factor towards promoting their development and integrating the national socioeconomic system. * Valid Elected Delegates Religious leaders, Local Mayors, and community organization leaders are the social leaders and local representatives with the highest credibility within the communities placed under the direct zone of influence of the road. In addition to the 126 abovementioned, the leaders of the rice growers Association and Federation have a high level of organization and representation. The Municipal Trustees, in their environment, act as valid and legal representatives for those communities they represent. A field work was conducted where the aforementioned legal and valid representatives were identified, and the mechanisms for obtaining information, in this case it was answering a questionnaire during the direct personal interviews with household heads. (See Numeral 4.3 of this document). * Origin and Cultural Identity The communities related to the road's rout make up a varied socio-cultural patchwork. There are ethnic Haitian groups, of Haitian origin, Cibaeflos, such as those who live in Majagual, who are mostly from the town of Santiago de los Caballeros, and the Bajo Yuna, coming from different communities in the Northeast. These communities have a clear awareness of their origins, of their cultural identity; they are pioneers in building new and their own communities. The first generation preserve their weight and strength, since they were founded 40 and 50 years ago. Life in these communities is closely linked to the use of natural resources, for such settlers preservation of those natural resources is a matter of life or death. Their lives depend on those resources. * Cultural, Historical and Religious Traditions The fact that there are patron saint's days at each community is not really relevant news, however, but in fact they are. Such is the case of the Monte Plata Province, since it stands for the great amount of typical and traditional dances, such as the Gaga, which is a musical and dance expression of Haitian origin that is performed during the Holy Week celebration. (See Table 44) * The Dance of the Sticks: This dance has been performed in Monte Plata since the end of the I9th Century, and take place in the wakes of different saints, and in the patron saint's holidays. In Monte Plata, for example, stick novenas take place from the 11th to the 21st of January, from the 4th to the 13th of June at the Los Palos community; from the 4th to the 13th of December at the Caique, from the 15th to the 24th of June at the town of Don Juan, and during any other farm community celebration, such as the one celebrated for the Virgin of the Holy 127 monkeys. This type of pottery which would probably be from the most developed Ciguaya zone, fully coincided with the style and form of final pottery in areas such as Macao (East), and with the monkey pottery on the coast of the Samand Bay worked by Dato Pagan Perdomo and Abelardo Jimenez Lambertus, they also found a great amount of sea and land food remains. The researcher Veloz Maggiolo, indicates that this pottery can be found from the area of Macao and the North Coast of Higuey, over all Samana, up to what is today the city of Gaspar Hernandez. And he continues to say that the Ciguayos were neighbors with the Macorijes towards the West and South, and they covered a much larger area than Samana, taking possession of the south of the Samana Bay, which make up the caves where Los Haitises ends on the northern part of Sabana de la Mar. In summary, the zone comprised from the South (Boca Chica) towards the North Samana Bay, in other words the zone of influence of the road, was used by the indigenous settlers for manufacturing a type of pottery that was attractive due to the perfection of the forms, the presence of wide ribbon type handles, the bright and intense colors and the use of anthropomorphous figures. Marcio Veloz Maggiolo, continues stating in his work called The Island of Santo Domingo before Columbus, that on the surface of Anadel and the Galeras, in Samana he found, along with his fellow researchers numerous weights for fishing nets made out of pottery, similar to the very florid style of the Macao and the Jamo, La Llanada and La Caribe, where they found a decorated pipe in the last place mentioned. 4.3.5 Economic Aspects * Economically Active Population The Economically Active Population (PEA) of the Distrito Nacional represents 4.45% of the general population, 41% of the Province of Duarte population, 40.5% of Maria Trinidad Sanchez, 42% of Samana, and 41% of Monte Plata. The lowest ratio is in the Province of Maria Trinidad Sanchez, with a 4% difference with respect to the Distrito Nacional that has the highest percentage. It is important to highlight that the road will directly link provinces that represents 41% of the working population of the country (See Table 4.45). Table 4.3 PEA Recorded in the 1993 census and estimated to the year 2000 130 Provinces Population 1993 PEA 1993 PEA 2000 Distrito Nacional 2'1 93.046 862.159 1,183,447 Duarte 281.879 94.741 126,498 Maria Trinidad Sanchez 124.957 41.447 55,340 Samana 75.253 25.192 33,636 Monte Plata 167.148 52.588 70,422 Total region 1 076.127 1,469.871 Total country 2'657.838 3 '584.975 For 1981, the National PEA was made up of 1,915,388 persons, for the 1993 PEA it rose to 2,657,838, and for the year 2000 it was made up of 3,584,975 persons, representing 34% of the Country's total population for 1981, 37% for 1993, and 41.5% for 2000. Although there have been many changes in the Dominican countryside, in the last 40 years, and since the crisis of the small agrarian property, the majority of PEA of the provinces studied were concentrated in the rural area, on a scale of 45% to 50%, but it is braking down, and there is a high level of unemployment (in all provinces the unemployment rate exceeds 20%) which motivates the migration of the PEA, who are not able to work in the provinces and looks for work in large cities. However, since the beginning of the eighties, the transfer of Haitian seasonal farm laborers, from nearby sugar cane areas, towards agricultural activities, has created a series of small communities or "bateyes" (grounds occupied by sugar mills and ancillary installations"), currently being reproduced in extreme poverty conditions, but who interact, in socio-cultural terms, with the rest of the Dominican communities, especially in the province of Monte Plata. It is clear, that although most of the population lives in the rural areas, the unemployment rate is higher in these areas than in the urban zones. The PEA is predominantly occupied in the agricultural and livestock and agribusiness activities. * Agricultural and Livestock Sector The Bajo Yuma, which occupies a great part of the Samana, Maria Trinidad Sanchez and Duarte provinces, is a part of the country's largest rice production zone. In view of this potential the Project Aglypo II is currently being executed in the agricultural settlements of El Aguacate and El Guayabo, where the following objectives are aimed at: 131 Rehabilitate the soils to dedicate them to rice cultivation Improve life conditions and economic welfare for a large number of people With its implementation, a total of 112,000 sq m. of land will be included to the agriculture aimed at rice production, an area that is currently out of production, due to excess or lack of water. On the other hand, the demand of water foreseen for rice production in the areas that do not have water, will be guaranteed by a diversion channel from the Yuna River. The previous sq m. foresee the incorporation of 59,200 sq m. of grassland and swamps to rice production and to increase from 1,500 to 2,800 the smallholders settled, which represent approximately 45% of the provinces of Duarte, Maria Trinidad Sanchez and Samana, and 23% of the rural population of these provinces. The limitations indicated will be resolved through the construction of a hydraulic and roadway infrastructure that would include: network of channels and drains, longitudinal dikes, derivation channels works and roads. Regarding the agrarian reform projects, there are five important projects in the area in this respect. These projects represent 22% of the total surface, 27% of benefited families, and 26% of the family load, dedicated to Agrarian Reform in the Dominican Republic. In other words, the importance of this project rests on the fact that these projects represent almost one fourth of all agrarian reform projects implemented in the Dominican Republic. In the Provinces indicated there are 40,067 producers under irrigation, registered in 1998, by the Technical Planning Subsecretary (see Table 4.46), and the economically active population in these provinces is about 286,424 persons. Based on the previous data, we clearly see that the producers represent 14% of it, in other words, it has a high specific weight. Table 4.46 Agrarian reform project in the region, as of December 31, 1999 Regional management and/or decentralized Distributed Families Family project surface (tas) benefited Load Nagua 1,223,853 13 ,879 87,892 Monte plata 557,182 7 ,079 42,401 La Altagracia decentralized project 37 ,101 724 4 ,002 Lim6n del Yuna decentralized project 116 ,041 2 ,021 12 ,500 San Francisco de Macoris 315 ,868 2 ,788 17 ,698 132 Subtotal 2,250 ,045 26 ,491 164 ,493 otal country 10,020,303 99 ,285 624 ,508 Therefore, labor supply is characterized by the dexterity of using agricultural and livestock production instruments, required for rice, yautia, cattle and other related crops. Labor demand comes from small, medium and large agricultural companies, which allow greater occupation of the PEA in the rural areas. Their low literacy level and the precarious social services have been the greatest obstacle for their development and transformation. In urban areas, every day there is a greater weight on informal activities, which occupy a large part of the PEA. In the provinces being studied, there is the same level of land tenancy that exists on the national level, where, according to the agricultural and livestock census of 1981, 12% of the producers own 78% of the land, and 88% of the producers own 12% of the land. The above, added to the fact that large and medium size producers occupy the most productive land. However, it can be seen that the national average of farm sizes is about 127 sq m.. From the total of existing farms on the National level, the provinces under study have 18%. They also represent 19% of all the sq m. used for agricultural farming, where 52% are dedicated to cattle farming, and the other 48% is dedicated to agriculture. Which means that, in a general sense, cattle farming has a greater weight than agriculture. This difference is manifested basically in Monte Plata, Maria Trinidad Sanchez and the Distrito Nacionalt as shown in Table 4.47 In the Province of Duarte, agriculture has a greater weight than cattle farming. In the Province of Samana, there is practically an even balance between land used for agriculture and land used for cattle farming. However in province of Duarte, agriculture has a greater weight, due to the large amount of land dedicated to rice cultivation. They were capable of producing over 9 million quintals of rice during 2001. Table 4.48 we highlights the fact that men represent 88% of the total national producers, and women the remaining 12%. The Duarte Province is the one that has the highest number of producers, and the largest number of agricultural and livestock companies. The Province of Monte Plata is in second place with respect to number of producers. 133 Table 4.47 Quantity of farms and square meters by type of farms, according to provinces Total Total agricultural Cattel farms Provinces farms sq m. sq m. / types sq m. / types Distrito Nacional 3,084 344,476 122,054 222,422 Duarte 16,223 1,816,596 I'113,437 703,159 Maria Trinidad Sanchez 7,699 1,290,832 462,564 828,268 Samana 4,419 507,811 256,597 251,214 Monte Plata 11,726 1,922,127 895,421 1,026,706 Total region 43,151 5,881,842 2,850,073 3,031,769 Total Country 243,939 30,935,947 13,885,462 17,050,485 Source: Registro Nacional de productores Agropecuarios (1998). Subsecretaria Tecnica de Planificaci6n, SEA. Table 4.48 Quantity of roducers by gender, according t provinces Provincias Total Men Women Companies Distrito Nacional 3.084 2.548 485 51 Duarte 16.223 13.811 2.332 80 Maria Trinidad Sanchez 7.699 6.679 1.009 11 SamanA 4.419 4.154 257 8 Monte Plata 11.726 10.459 1.227 40 Total region 43.151 37.651 5.310 190 Total country 243.939 218.332 24.762 845 Source: Registro Nacional de Productores Agropecuarios (1998), Subsecretaria Tecnica de Planificaci6n, SEA. While on the National level producers that belong to the agrarian reform represent 26%, at a provincial level being studied, the reformed sector represents 45%, showing the weight that projects of the Agrarian Reform have in the provinces under study (See Table 4.49). This situation partly explains, the high dependency that these producers have on actions taken by the Dominican Government. Table 4.49. Number of producers by land tenancy, according to province Land tenancy 134 Provinces Agrarian Reform No Sector Reformed Total Distrito Nacional 1.826 1.253 3.079 Duarte 12.160 4.022 16.182 Maria Trinidad Sanchez 3.638 4.045 7.683 Samand 3.169 1.250 4.419 Monte Plata 9.230 2.465 11.695 Total region 30.023 13.035 43.058 Total Country 192.396 50.560 242.956 From a total of 13,035 producers who hold possessions in the Agrarian Reform projects, only 1,446 had definitive ownership documents for their properties in 1998. In other words, 89% of producers settled in the agrarian projects, in the provinces under study do not have definitive ownership titles to their lands. This reality, places them in a subordinate position, with regards to the State. It is important to note that 70% own provisional ownership title, 165 have taken possession of the lot, and 3% have a Letter of Ownership ("Carta de Constancia") (See Table 4.50). The percentage of producers not included in the Agrarian Reform programs, who have definitive ownership titles for their land are also, lower, compared to those who do not have the required documentation; generating a situation of fear and attachment of the producer to the land, which unable him/her to enter into a formal financial system, and therefore, this becomes its main obstacle that impedes his/her development, and along with him/her the national agricultural and livestock production The provinces of Duarte and Maria Trinidad Sanchez are the ones that have the greatest number of square meters under irrigation, this is understandable for being in the region that concentrates the largest rice production area in the country, as shown in Table 4.51. Table 4.50 Number of producers of the reformed by land tenancy, according to provinces Form of agrarian reform tenancy Provinces Holder Prov. Title Ownership letter Definitive Title Total Distrito Nacional 157 728 65 303 1,253 Duarte 293 3.115 65 549 4,022 Maria Trinidad Sanchez 688 3.020 161 176 4,045 135 Samand 494 513 49 194 1,250 Monte Plata 383 1.797 61 224 2,465 Total Province 2.015 9.173 401 1.446 13.035 Total Country 5.773 34.514 1.873 8.400 50.560 Data from National Records of Agricultural and livestock Producers surveyed in 1998. Subsecretary of Technical Planning. Table 4.51 Total agricultural square meters under irrigation and by producers according to provinces Total sq m. under Provinces irrigation Total producers Distrito Nacional 1,985 3,084 Duarte 289,430 16,223 Maria Trinidad Sanchez 193,369 7,699 Samana 450 4,419 Monte Plata 13,653 11,726 Total Regi6n 498,887 43,151 Total Pais 2,944,812 67,436 Datos del Registro Nacional de Productores Agropecuarios levantados en 1998. Subsecretaria Tecnica de Planificaci6n. The provinces of Duarte and Maria Trinidad Sanchez are the ones that have the greatest number of square meters under irrigation. which is understandable because this region concentrates the largest rice production level in the country. Monte Plata has the largest number of lots dedicated to the cultivation of corn, cassava, white yautia and yam. Samana, on the other hand, occupies its land for yam and coconut cultivation, with a total sowing of around 12,000 square meters each. Samand is the province with the largest production of coconuts of the provinces under study. Tables 4.52 to 4.55 show the records for agricultural production by product in the different provinces studied. Table 4.52 Sowing, harvesting and production of main cultivations, Provincia de Duarte year 2001 Products Sowing Harvesting Production Rice 283,496 562,286 2,232,100 Com Grain 2,058 13,378 22,648 Black beans 1,056 755 826 136 Kassava | 1,287 | 5,747 39,252 |Yautia coconut 997 8,594 232,806 Subsecretaria de Planificaci6n Sectorial Agropecuaria. SEA Table 4.53 Sowing, harvesting and production of main cultivations, Provincia de Maria Trinidad Sanchez, year 2001 Products Sowing Harvesting Production Rice 283,496 298,319 1,147,496 Corn Grain 2,058 2,055 4,491 Black beans 1,056 1,137 1,295 Cassava 1,287 1,105 7,343 Yautia coconut 997 1,918 54,400 Subsecretaria de Planificaci6n Sectorial Agropecuaria. SEA Table 4.54 Sowing, harvesting and production of main cultivations, Provincia de Monte Plata, year 2001 Products Sowing Harvesting Production Com grain 22,013 24,560 49,120 Guandul 13,164 13,490 11,715 Yam 16,240 18,852 169,668 ,Yautia blanca 17,407 22,777 193,405 Cassava 22,070 24,528 196,252 Subsecretaria de Planificaci6n Sectorial Agropecuaria. SEA Table 4.55 Sowing, harvesting and production of main cultivations, Provincia de Samana, year 2001 Products Sowing Harvesting Production Maiz grano 2,228 2,149 3,287 Name 11,766 6,082 60,820 Yautia amarilla 2,798 2,429 18,422 lYautia coco 1,318 1,230 30,750 [Yuca 2,499 2,346 23,460 Subsecretaria de Planificaci6n Sectorial Agropecuaria. SEA * Tourist Sector As indicated in Table 4.56, the tourist sector has remained stable during the whole decade of the nineties in a slow but steady growth, helping with the Gross Domestic Product (GDP) of the country. Table 4.56. Contribution of the hotels, restaurants and bars subsector to the gross domestic product (GDP) years 1993-1998 (Millions of US$) 137 Contribution Years GDP Sector % 1993 4.198,60 218,30 5,20 1994 4.380,70 251,00 5,73 1995 4.591,40 192,70 6,36 1996 4.925,00 325,60 6,61 1997 5.326,40 379,90 7,13 1998 5.712,90 398,00 6,97 1999* 6.188,20 395,6 6,39 2000* 6.632,70 454,0 6,80 Source: Dominican Republic Central Bank Table 4.57 shows that tourism maintains its contribution in foreign currency to the National economy, going from a 30.0% in 1996 to 34.3% in 2000, while the other economic activities dropped gradually. This growth is also seen in the Duty Free Zones that represent 56.5% of the foreign currency obtained by the country. Regarding the road that links Santo Domingo with Samana and Maria Trinidad Sanchez, what it does is to directly influence tourist areas that will strengthen the national tourism offers, making the different regions more complementary among themselves, from the international tourism perspective. It will also facilitate doemstic tourism from the Capital towards Samana and Maria Trinidad Sanchez. Table 4.58 Currency generated by tourism, and main export headings, years 1996-1998 (Millions US$) Headings 1996 % 1997 % 1998 % 1999 % 2000 % Sugar and byproducts 169.4 2.9 203.8 3.1 143.5 2.1 88.2 1.2 89.6 1.1 Coffee & its manufacturing 64.9 1.1 67.9 1.0 66.7 1.0 30.4 0.4 33.0 0.4 Cocoa & its manufacturing 65.0 1.1 61.0 0.9 89.1 1.3 31.6 0.4 26.1 0.3 Tobacco & manufacturing 43.6 0.7 91.2 1.4 66.2 0.9 72.5 1.0 44.7 0.5 Minerals 271.1 4.7 243.8 3.7 150.1 2.1 150.8 2.0 237.4 2.8 Other exported products 207.5 3.6 216.8 3.3 232.4 _3.3 321.1 4.3 352.2 4.2 Duty free zones 3.262.2 55.9 3596.4 54.7 4.100.2 58.7 4.331.5 57.4 4.770.6 56.5 Income from tourism 1.747.1 30.0 2.099.4 31.9 2.141.7 30.6 2.524.0 33.4 2.895.0 34.3 Source: Dominican Republic Central Bank Santo Domingo-Boca Chica represent 10.2% of the room availability in the Dominican Republic, for business and conventions tourism; the East region (San Pedro de Macoris, Romana and the Province of Altagracia) represent 47% of the Dominican tourist offer (beach tourism), and Samana and Maria Trinidad Sanchez represent 7.3% (beach tourism and ecotourism) as shown in Table 4.58 Table 4.4 Room offer in tourist accommodation institutions, according to 138 number of rooms, year 2001 Province Total Share Sto. Domingo - Boca Chica 5,507 10.2 San Pedro de Macoris 4,171 7.7 La Romana 1,444 2.7 La Altagracia (Higiiey - Punta Cana, Bavaro) 19,762 36.6 El Seibo - Hato Mayor 133 0.2 Samana 2,041 3.8 Maria Trinidad Sanchez 1,886 3.5 Puerto Plata 16,745 31.0 Montecristi 100 0.2 Barahona 480 0.9 San Crist6bal - Peravia - Azua 154 0.3 Santiago 699 1.3 La Vega 425 0.8 Otras 417 0.8 Total 53,964 100.0 Source: National Association of hotels and restaurants. ASONAHORES The possibility of using the Santo Domingo infrastructure, to travel to Samana by tourists, will be a reality with the road, since the road will allow movement of tourists from the Las Americas Airport towards Samana, in just two hours. Samana's ecotourism offer will be a great attraction for high and middle income tourists from Santo Domingo, who will be able arrive to Samana in just two hours, through a beautiful roadway that in turn will offer a lovely, new, and unknown landscape for most of the people who live in the Capital. (The Valleys of Monte Plata, part of the East Mountain Range, Los Haitises National Park, and the rice area of Maria Trinidad Sanchez, the Province of Duarte and la Sierra, and the Bay of Samana). Table 4.59 allows us to see that the Samana region absorbs most of the internal tourism, with 26.7% of the total. In second place is the City of Santo Domingo. We know that the proportion of Samana would be even greater if we separate it from Playa Grande, and we also know that the proportion of Santo Domingo is even lower if we discount payment by corporate card, which inflate, and partly biases the national percentage in the City's hotels. Without a doubt, shortening over 100 kilometers for people who live in the capital, would double domestic tourism towards this beautiful region. Table 4.59 Market segmentation, guests distribution by origin according to zones. Year 2001 (Values in %) Beach areas 139 Origin Total City Total Juan Dolio/ Romana/ Punta North Samana/ Playa Beach Boca Chica Bayahibe Cana Zone Grande ______ __ _________B avaro _ _ _ Nationals 14.9 23.3 14.1 19.6 9.9 12.6 10.3 26.7 Foreigners 85.1 76.7 85.9 80.4 90.1 87.4 89.7 73.3 TOTAL 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 Source: National Association of hotels and restaurants. ASONAHORES In summary, an increase in domestic and international tourism flow towards Samand will the most important consequence, from the constructions of the Samana to Santo Domingo Road. And this increase in flow will be the driving force that will increase new private and public investment, in order to increase employment and the welfare of the citizens. Construction of hotel rooms represents new employment, building four hotels with 500 rooms each represents 2000 new jobs for the Dominicans. In summary, the productive structure of the region being studied, has been taking place since the beginning of the 20th Century, up to this day; specializing labor in agricultural and livestock activities, and quite recently, in tourist service activities. (Samand and Maria Trinidad Sanchez). It is an area with low agribusiness development, and in this context the African Palm agribusiness stands out. Sugar cane cultivation, and all related socioeconomic relationships that surround it, are going into a very fast quick disintegration process, with the closing of the San Luis Sugar Mill, which took place at the end of the nineties, with the capitalization process of public companies. In other words, the Dominican workers are goinun into a desperate search for another insertion alternative into job in the market, and Haitian labor or from a Haitian origin is concentrated in small bateyes, inside the Province of Monte Plata, and is inserted mainly into nearby agricultural activities. 4.3.6 Plans and Programs for the Region's Development There are two very important projects being executed, that will be taken into consideration during the construction process of the Santo Domingo-Samana road, to avoid interference and complementary events. 140 * The Celebration of the XIII National Sports Games The games will take place in the Province of Monte Plata, during the third quarter of 2003. For this event, the National Housing Institute is building the Villa which will house athletes, technicians and coaches for the National Games. In the Municipality of Bayaguana 100 apartments will be built to house over 2000 athletes, while in the Municipality of Monte Plata and Sabana Grande de Boya, there will be 50 apartments built at each location. This project will also build sport sites in the Municipality of Yamasa. * Execution of the AGLYPO II Agricultural Development Project This will take place in the agricultural settlements of El Aguacate and El Guayabo, that are communities in the Provinces of Maria Trinidad Sanchez and Samana, respectively. This includes a Tma work from the Rio Yuna with 10.55 m3/sec. by building an: Inflatable Rubber Dike, first of its kind in the Antilles, two units of regulation gates of 5.00 meters wide and 2.00 m high. 4.4 ENVIRONMENTAL ZONING 4.4.1 Protected Areas The protected areas would correspond to the exclusion areas of the terms of reference, where no type of intervention is allowed. This is true for the whole park area, with the exception of the area which forms the corridor for constructing the road. In the areas of influence of the road there is only one protected area, Los Haitises National Park, aestablished as a nature reserve by Decree No. 319 of 1997, with an area of 137,500 Has, which contain a series of mountainous areas made up of different rocks, and a unique erosive process called karstification. The portion of the project that goes through this area will be designed with a minimum paved roadway, maintaining the existing cart way corridor; within the concept of the project and creation of a parkway, there have been several locations identified to highlight the natural environment with a landscape design accepted within the management of the natural areas. 141 Through Law 5856 of April 2, 1962, there is forest preservation established in the higher mountain ranges and elongated hills with different sigmoid layout; at a result of mountains, banks of all rivers and streams, in a strip of 30 m wide on each side; lakes, lagoons and the coastal region in a strip of 20 m wide; river, stream, and water sources that serve any community or neighborhood in the area. In this regard, the project must strive to minimizing the effects of sector two (2), when passing through the river basin of the Boya River, where it runs through low hills peaks and banks of important tributaries, as well as in sector one (1) when passing through small natural water deposit areas which look like the beginning of fountainheads. Figure 4.20 shows the location of the park with respect to the road It is important to highlight that in this sector there has been a drastic reduction of technical specifications of the road, reducing the design speed from 80 to 50 KPH. This was done in order to minimize the cuts in this sector, and decrease other environmental impacts related to high speed, such as the running over the fauna. 4.4.2 Sensitive Environmental Areas We consider the Haitises National Park as an sensitive environmental area. In addition, we consider all wooded areas which will be intervened, especially the forest hills stretches corresponding to K42 to K48. For this stretch it was initially proposed that there be an alternative route so as to affect a smaller proportion of the area, however, this was ruled out because it would have been a longer, and therefore the cost would be higher. Annex H presents this alternative for information purposes. Annex H shows this alternative. The bodies of water affected by the crossings and the parallel stretches (See Annex A). Among these, special attention should be given to a lake area which is located between K22 + 600 m and K22 + 800. Everything which Law 5856 of 1962 declared as public utility, among others, prevention of soil erosion and combating soil erosion, protect hydrographic basins and general communication roads through reforestation. This as a norm in the project's Environmental Management Plan, in the area of direct influence. 142 Figure 4.20 Location of National Reserves in Los Hiateses National Park 143 -s'~~~~~~~~~~~~~~~~~~' IVJ \i 1 31 , + \ C \- a~~~~~~~~~~~~~~~~~~~~~~~~.~ .Cy.' :' .. S . :- I ~ ~ ~ ~ ~ ~ -". ' -.j \~~~~~~~~, ',f. 4~ ~ ~ ~~~~~~~~~10 /;C .- . "1 .' rn--i't1s =~~~~~~~~~~~~~ . J CONVENCIONES ESTU/DID DE IMPACTO AMBIENTALRAE DISERO CARETRA STODOMINGO UBYIC1CIN RESERVAS NACIONALES NATURLE CRUCE RINEOTENRADE MNTOUNILLOS YDEL PARQUE CIAIONAL LOS MI/A/ES - - ~ ~ ~ . .... . .~~~~~~~~ X,4-02 ~~~~REPOBUCA DOMIMNIC/ANA42 4.4.3 Sensitive Social Areas From a social point of view, a sensitive area is considered in a population is affected, regardless of the amount of families, since we are based on the criteria that the road construction would positively benefit the standard of living of the population, in first place the population located in the zone of influence of the project, which has acquired rights, that must be taken into consideration. Due to the above, the sensitive social areas of the road's stretch are: Cabreto, La Altagracia, Las Mercedes, Pueblo Nuevo, Hatillo, La Cueva, Batey Bate de Capa, Sabana Larga, Batey Nuevo, Gonzalo, Batey Tarana, El Aserradero, Batey Nuevo de Majagual, Majagual, La Reforma, Platanito, El Aguacate, La Mata, and El Cruce de Rincon de Molinillo. All of the road's path crosses areas where the population is extremely poor. 4.4.4 Critical Environmental Areas Areas that due to the use they have been subject to are seen from the environmental sanitation point of view as having a high degree of influence over corridor's right of way, which correspond to the suburban and perimeter belt of the city of Santo Domingo, where garbage deposits place a high risk even the construction personnel. On the other hand, the impossibility of preserving an environmental dampening corridor between the road corridor and the urban area, may also cause risks during the operation phase due to pollution or accidents. The decrease of meander wetlands and floodable planes of the Guaraguao and Yuna Rivers, drained as a land adaptation system for rice cultivation. Channeling waters from these rivers to be distributed in the valley of the municipalities that conform the Aglypo Project irrigation district. The wetlands of Guaraguao that have been drained to adapt the land for rice cultivation. Channeling the areas close to the river and taking water for the Aglypo Project irrigation district. The areas close to Santo Domingo, with urbanization and large piles of garbage and construction materials in the roads (See Photo 18) 4.4.5 Critical Social Areas The social areas that are considered as critical are made up by the towns that will receive the greatest impact from the Road's construction, such as the towns of El Aguacate and La Mata, from the Municipality of Arenoso, in the Duarte Province. 144 4.5 CONSULTATIONS AND PUBLIC PARTICIPATION PROCESSES In order to find out the opinion of the settlers of the direct socioeconomic area of influence of the road, an interview was conducted with approximately 300 families located along the road's corridor, that aside of inquiring about their opinion of the road, collects primary information which is summarized in Annex J. In general, the vision that the community has regarding the road is very positive. Only 0.3% of those interviewed responded that they considered the road a bad thing for the community, which demonstrated the high degree of acceptance that the project had within the population that is directly affected by it. 145 5. CURRENT NORMATIVE AND INSTITUCIONAL CONSIDERATIONS 5.1 LEGAL CONSIDERATIONS Environmental regulations of the Dominican Republic are framed within the General Law on Environment and Natural Resources (64-00). With regards to the environmental aspects of the road Santo Domingo - Cruce Rinc6n del Molinillo, the following provisions apply: All the basic principles established in Chapter I, Articles 1 to 14 of the aforementioned law. Article 27 of this law establishes the instruments for managing environment and natural resources, among which the environmental permits and licenses are found. Articles 38 to 48 regulate the environmental evaluation process. Articles 53 and 54 grant powers to the Secretariat to carry out the necessary environmental inspections and vigilance and to take the relevant corrective measures when irregularities arise. In addition, the following laws are enforceable: Law 85 of 1931 referring to hunting, regulated by Decree No. 900 on closed season, of December 27, 1940, and other species included by the Forest, Hunting and Fishing Services of the Secretariat of Agriculture, Industry and Work. Law 1474 of 1938 of road links empowers SEOPC when dealing with national roads and town councils for municipal roads in case of applying land expropriation, according to the Eminent Domain Law. Law 5856 of 1962 on forest preservation and fruit trees declares public utility the prevention of soil erosion, protection of hydrographic basins, by reforesting road links. Pursuant to this law, forest reservations involve all mountain tops, riverbanks of all rivers and creeks and 20 m around lakes, lagoons and marine coastlines, fountainheads or springs of all rivers and brooks that serve any community or neighborhood; in addition, law 305 of 1968 on road links that surround bodies of water, establish it at 60 m. This law was complemented by Law 632 of 1977 on the protection of trees at headwaters of rivers and creeks. 146 Law 318 of 1968 stipulates as part of the monument heritage all monuments, ruins, pre-Colombian enclosures, colonial buildings, urban residential complexes and other constructions classified as historical interest sites, as well as statues, columns, pyramids, fountains, crowns and items intended for public places with a commemorative nature. Laws 123 and 146 of 1971 on exploitations of construction and mining materials that regulate exploitation concessions of the earth's crust components, conformed by sand, gravel, broken stones and rocks. By means of this law a commission is established which is responsible for analyzing the applications for concessions and the SEOPC is appointed to enforce this law. Law 67 of 1974 creates the National Direction of Parks, as an autonomous entity that administers protected areas. Some Articles of this Law provide for the specific prohibition of constructing electric or telephone piping, aqueducts, roads and rail tracks, except when the final destination or purpose of the last two mentioned is to make them accessible for visitors. It is very important to clarify that despite the fact that the road will cut the western end of the National Park Los Haitises, a road corridor already exists and its alignment will be the same as the present one. A small relief road has been proposed to avoid passing through the center of the Guaraguao village, and said relief road will have only have an impact of 1 km on the buffer zone. Law 297 of 1987 declares as natural heritage of the nation all caves, caverns and other underground cavities located in the national territory. Law 83 of 1989 prohibits to dump solid debris coming from the construction of streets, avenues, sidewalks and roads in their sides, green areas, waste lands, squares and public gardens of urban and sub-urban zones of the Republic, with the exception of the areas intended to build landfills, in that case the only requirement will be to have the owner's authorization. Decree 266 of 1990 prohibits dumping chemical and organic scraps and waste into river currents and into their tributaries throughout country. Lastly, by means of Resolution No. 1 of 1997, the Public Works and Communications Secretariat of State declared the "Environment Manual for Designing and Constructing Road Projects ("Manual de Medio Ambiente para Disefio y Construcci6n de Proyectos Viales") written by Aristizabal and Moreno (1996), as an obligatory norm for Design and Construction. 147 5.2 INSTITUTIONAL RESPONSABILITIES Chapter IV of the General Law on Environment and Natural Resources (64-00), created the Environment and Natural Resources Secretariat of State, which has among other, the following duties: formulate the national policy on environment and natural resources, implement and supervise this policy, administer natural resources of public control and oversee to its preservation and protection. It is therefore, the competent environmental authority regarding the project's environmental management. In addition, it established the Environmental Information and Natural Resources National System, which is also in charge of carrying out, organizing and updating the biodiversity and the national genetic resources inventory, and overseeing their preservation. This Secretariat has two subsecretaries directly involved in the project's environmental managements: the Subsecretary of Environmental Management and the Subsecretary of Protected Areas and Biodiversity. The Secretariat has, among others, the following objectives: * Establish the national environmental policy. * Administer the natural resources allocated to this entity * Look after the preservation, protection and sustainable use of natural resources and the environment. * Promote the integration of the civil society to the plans, programs and projects aimed at preserving and improving the environment. * Prepare and guarantee proper implementation of the norms regarding preservation, conservation and management of protected areas and wildlife. 148 6. ENVIRONMENTAL IMPACTS IDENTIFICATION AND EVALUATION 6.1 GENERAL ASPECTS An Environmental effect is considered to be a modification of any environmental element brought about by a specific technological action of the project or by the project itself, analyzing it as a whole. This evaluation was undertaken in an interdisciplinary manner, through evaluation workshops that facilitated wide scale participation of the work group, and thus served to implement the parameters contemplated in the terms of reference in the most effective way. The scope of these parameters was defined in Chapter 1 of this study. 6.2 METHODOLOGICAL ASPECTS 6.2.1 Technical Components of the Project that Can Cause Environmental or Social Affectations According to the project's description given in Chapter 3, the following activities could bring about environmental affectations, which are listed below: a) Preliminary activities: * Previous studies (Activity No. 1). * Acquisition of terrain and improvements (Activity No. 2). b) Construction phase: * Contracting the workers (Activity No. 3). * Installation and operation of machinery yards (Activity No. 4). * Operation of machinery (Activity No. 5). * Cleaning, clearing, and cutting trees. (Activity No. 6). * Excavations and cuts (Activity No. 7). * Transport of materials (Activity No. 8). * Exploitation of materials (Activity No. 9). * Waste disposal (Activity No. 10). * Construction of embankments and banks. (Activity No. 11). * Base and sub-base construction. (Activity No. 12). * Drainage works construction. (Activity No. 13). * Construction of bridges. (Activity No. 14). 149 * Asphalt plants set-up and operation (Activity No. 15). * Wearing surface placement. (Activity No. 16). * Demarcation and road-signs. (Activity No. 17). c) Road operation and maintenance phase. * Tollbooths operation and collection (Activity No. 18). * Traffic circulation. (Activity No. 19). * Road maintenance (Activity No. 20). 6.2.2 Preliminary Identification of the Affected Environmental Elements As a first step prior to evaluating the effects, it was necessary to carry out a preliminary identification of the affected environmental elements. To this end, a list of technological actions contained in the project, both during the expansion phase as well as the operative phase and of the relevant environmental elements or indicators, was drawn up. 6.2.3 Environmental indicators The list of environmental indicators is based on the characteristics of the project's zone of influence. The following terms have been taken into account in order to construct the indicators in an appropriate manner: * Component: This is a wide scale division of the ecosystem, as a result of which the physical, biotic and socioeconomic components were determined. * Element: Each component was divided into a series of elements that make it up and each element was then evaluated. * Indicator: This is a characteristic or attribute of each element, which permits its environmental evaluation. Having defined these terms, we proceeded to select the following environmental indicators: * Physical component: - Soil uses. - Soil quality. - Stability - Water quality. 150 - Drainage patterns. - Sound pressure level. - Particles in suspension in the air. - Pollutant gases. * Biotic component. - Forests. - Grasses and crops. - Protected areas. - Habitats. - Local Migrations - Populations - Biotic quality of the waters * Socioeconomic component - Jobs. - Agriculture and livestock activities. - Land values. - Tourism. - Local and regional trade. - Travel times. - Travel costs. - Rail and transportation infrastructure. - Effects on properties. - Utilities. - Relocating families. - Migratory flows. - Quality of life. - Neighborhood relationships. - Expectations. - Architectural finds. - Cultural heritage. * Perceptual medium - Quality of the landscape 6.2.4 Impact Identification Matrix As a result of crossing the information on the project's actions with the environmental indicators, we will construct a Leopold type environmental interaction 151 matrix. In this matrix, the project's activities will be identified using the same numbers used in numeral 6.2.1, and which will then be used for drawing up the environmental effects evaluation matrix. This matrix is commonly used to identify the environmental elements affected by the projects under analysis, but it does not constitute in and of itself an evaluation of the effects. 6.2.5 Evaluation Criteria and Scales The following is a discussion of the environmental impacts caused by the road's expansion, including their classifications, and in line with which the following criteria and scales of evaluation will be applied: Action that produces it: In this case, the constructive technological action or actions that produce the effect, along with the reasons behind it, will be evaluated, or, if these are the result of the project in and of itself, they will be identified using the same number used in the environmental interaction matrix. Type of effect: This refers to the beneficial or damaging characteristic of an effect. It is graded as a qualitative type of characteristic, as being either positive or negative. Probability of it occurring: This is an analysis of the degree of certainty that the effect will appear or not. It is graded as being either certain, moderately probable or of low probability. Magnitude of the effect: This refers to the degree of affectation of the environmental impact. It is graded in a quantitative form wherever possible. When it is not possible, an adequately supported qualitative grade characterizing it as very low, low, moderate, high or very high will be given. Duration: This is determined by the persistence of the effect over time and is categorized as being very short if it lasts for a few days, short if it lasts for less than a month, moderate if it lasts no longer than the period of construction of the road and permanent if it persists over a number of years. Similarly, the duration may be characterized as seasonal if it is determined by climatic factors. Area of influence of the effect: This is a spatial evaluation of the location of the effect under analysis. It is characterized as precise when the effect is limited to small areas, (i.e. the surrounding areas of the road), local when its area of influence is limited (like the slopes below or above the road; these effects may or may not be 152 lineal), zonal if the area of influence is greater, regional if the area is the same as that being studied and super-regional if its area of influence goes beyond the limits of the area being studied. Degree to which it can be mitigated: This determines whether the negative effects can be mitigated with respect to one or more of the variables used for evaluation and it is classified as not susceptible to being mitigated, slightly susceptible to being mitigated, somewhat susceptible to being mitigated, highly so and totally susceptible to being mitigated. It must be kept in mind that the degree to which it can be mitigated depends as much upon the technical and economic feasibility as the political will to do it. Implications: Due to the existence of effects that in some cases bring about other effects (secondary effects) or that, added to others, demonstrate synergistic phenomena, (greater than the algebraic sum of the effects), it is necessary to analyze the implications of the effect in and of itself on other environmental components as well as to specify them (i.e. biological implications for water quality). Significance: this is an evaluation that brings together the rest of the criteria, thus determining the true importance of the effect upon the environment. This is the most important grade as well as that which requires the greatest amount of interdisciplinary discussion. It is classified as being low, moderate, high and very high. 6.3 EVALUATIVE DISCUSSION Figure 6.1 shows the environmental interaction matrix in which it may be observed that the activities that generate the greatest environmental interactions are Activity No. 6, taking down, cleaning and cutting, Activity No. 9, use of materials, Activity No. 7, excavations and cuts, Activity No. 4, installation and operation of machinery and equipment, Activity No. 5, installation and operation of asphalt plants and Activity No. I 1, construction of the embankment. This does not necessarily mean, however, that the impacts of these activities are the most significant. 6.3.1 Effects on the physical component. Discussion of these environmental effects are summarized in the environmental evaluation matrix in Table 6.1 * Effects on the soil: The following effects on this component have been found: 153 Figure 6.1 Environmental interaction matrix 154 CARRETERA SANTO DOMINGO - RINCON DEL MOLINILLO ESTUDIO DE IMPACTO AMBIENTAL FASE PRELIMINARE FASE DE CONSTRUCCION OPERACION E~~~~~~~~~~~~~~~~~ 3- i o' .opnneEeet Idcdr|N. 2 3 42 F-).1 a. E5 Suelos |Cal idad_ .ll Ji l _____ Uso del suelc _ l 1 lS _ ___ Geoformas |Estabilidad= __ illi l EJ _ll_ ___ Fisico Aguas Cadad de aguas |Patrones de drenaj( ll ll (3 |Nivel de presi6n sonora a _ _ a l _ _ _ Aire |Particulas en suspensi6n al all - _ _ - _ _ - _ I ~~~~~~~~~Vegetaci6n |Bosques = = - Areas protegida_ _ Bi6fico | Habitatss del suel_ Fauna Migraciones locales Poblaciones =-_*1l E1*11=_=1 Fisico Aguas ~Calidad itc de aguas ______ Actividades agropecuarias Valor de la tierra sonora ______ _ Econ6mco |Turismo onta_ nan__ a Comercio local y regional __ ____ __ |Tiempos de viaje__ ____ _ l_ Costos de movlizaci6 _______ ___ B tSocio Infraestructura vial y de transporte Iecn6mico Infraestructura nAfectaci6n de lredios Servicios pblm____ Reiocalizaci6n de famigas Social AFlujos migratoios _I I___ _ Validad de vItla tir Comunidad CExpectativas _ reinl ______ _ Cultural Yaciuientos arqueol6gico= Perceptual Paisale Calidad del Paisaje Figura No. 6. 1. Matriz de interacciones ambientales Table 6.1 Evaluation of environmental effects on the physical components Element/ Action Type Probability Magnitude Duration Area of Susceptibility Significance Environmental that of occurrence influence to mitigation Effects produces effect it _ Physical component Soils: Quality. ofnthesoils. 4,5,15 - High Moderate Moderate Puntual High Moderate Soils: Uses. Disappearance of the soil as a 6 - Certain 160 ha Permanente Local Not Low natural susceptible resource. Geoforms: Stability Generation of phenomena of 6, 7, 9, Low reaosin of 11,13 Low Moderate Punctual High Low instability Waters: Quality Contamination of waters due to bacteria and 4 - Moderate Low Moderate Zonal High Moderate organic material Contamination of waters due to 4, 5, 14, - High Low Moderate Zonal Totally High grease, oil and 15, 16 susceptible I hydrocarbons. Entry of solids 4l 6lt Eintr teo solids , 6,20 - Certain Moderate Short Regional High High drainage. ____________________________ Waters: drainage pattern Alteraci6n del i Hh P Z l Hg patr6n de 11, 13 Ceri H|gh Permanent | Zonal High High Air: air quality Increase in 4, 5, 9, _ Certain Moderate Temporary/ Local Moderate Moderate noise levels 15, 19 -Permnanent Suspension of 4, 5 to 9, MdModerate- solids in the air 11, 12, - Certain Moderate Seasonal Loa HihMdrt 15, 17 Emission of combustion 4, 5, 15, | Certain See text Moderate! Local/ Moderate Low gases into the 19 l Permanent Zonal air_ _ _ _ _ _ _ _ _ _ _ _ _ 155 * Contamination of soils: Activities related to this component include the installation and operation of machinery floors, the operation of machinery in and of itself and the installation and operation of asphalt plants. These undoubtedly generate a type of negative effect given the emissions of heavy gases, and oil and grease spills as well as of fuel, asphalt and residues from washing and maintaining the machinery and equipment. The probability of occurrence of this effect is considered very high. Its magnitude is moderate because it tends to occur in places that are very localized and with respect to which a series of preventive and corrective measures may be carried out. This effect is of moderate duration given that it arises during the construction phase and eventually comes back temporarily during the operational phase whenever maintenance work is carried out. With respect to the area of influence, these activities are considered to occur practically in the center of the roadway itself, thus the area is classified as being precise The degree of susceptibility to mitigation in order to avoid temporary effects or scars from such an effect is high, due to the existence of diverse alternatives and models for management and control of eventual residues or spills of hydrocarbon or asphalt compounds. The significance of the effect on the soil component within the construction corridor is classified as being moderate. * Disappearance of the soil as a natural resource: The loss of the soil as a productive layer due to the activity of removal of vegetation and topsoil is considered a type of negative environmental effect, taking into account that the range of the organic content and meteorological phenomena is permanently affected. These are elements that help to allow the natural vegetation to maintain edaphic and biological equilibrium as well as making it possible for humans to sustain agricultural and livestock raising productivity. The probability that this effect will occur as a result of the project's construction is certain. The magnitude is moderate in that it is calculated based upon coverage of 160 hectares. The duration is considered permanent because it embodies substitution by a hard area. The area of influence is local in that it affects a defined and narrow corridor extending for 106 kilometers. Due to these characteristics, the effect cannot be mitigated but its significance is considered to be low in terms of the influence of the construction corridor, its considerable length and its area of use. * Effects on the geoforms: There will be occurrence erosion phenomena and areas of instability: This component will be affected by the removal of vegetation and topsoil, excavations and cutting of the soil as well as by the disorganized accumulation of waste materials (See photo 19), especially on the hillsides, the use of construction materials, the construction of embankments and drainage works (bridges, box culverts and sewers). These will generate a negative impact 156 |~~~~~~ I effect with a high probability of occurrence and moderate magnitude. The duration of this effect will be moderate due to the normal attention given to this type of project in terms of stabilization. The area of influence is considered local, in that the road corridor will pass through two sectors having hills and terraces. There is a high degree of susceptibility to being mitigated because of the existence of diverse steps for control and recuperation with respect to this effect. Thus, the significance of this effect is moderate. * Effects on the waters: The following effects have been found with regard to this component: Alteration of the drainage pattern: The drainage pattern will be affected in different ways, depending upon the sector of the road: the area of the lake (clear lake) will be affected between kilometers 22 + 600 to 22 + 800 which measures 3 hectares. In the RAMSAR agreements, protected wetlands are characterized as those having an area greater than 6 hectares. In any case, abundant quantities of waterfowl were not observed during the visit and only two species were seen: the cattle-heron (bubulcus ibis) and the royal heron (Egretta thula). Careful drainage work must be carried out in this zone with the aim of preserving the interconnection between the two resulting lakes. In the part of the roadway that passes through two existing forests between kilometers 38 and 48 and where the road passes for the most part through water divisions and affects six springs, the affectation of the drainage pattern is considered to be serious. With regard to this sector, a better alternative from the environmental point of view has been proposed, as set down in Number 4.5.2. Lastly, the throughway over the Bajo Yuna plain, located in a floodable zone with very poor drainage, could give rise to serious water flow problems if a very careful handling of the drainage of the road is not undertaken while ensuring sufficient connections between both sides of the roadway. In general, these negative effects are sure to occur and are considered to be of a high magnitude, permanent duration, with a zonal area of influence, a high degree of susceptibility to being mitigated and high significance. Alteration of water quality: This component will be subject to a series of impacts consisting fundamentally of different types of contamination, depending upon the source. 157 The first and most significant source of water contamination comes from sediments or particle material. This arises during all activities that imply the movement of earth or some type of exposure of the earth that has been temporarily removed and piled up and that could be washed by the rain, thus dragging the sediments into the currents. The production of asphalt also generates waste materials having a relatively high content of finely ground solids. This negative effect, having a high degree of probability, will be of moderate magnitude, short duration, will have a regional area of influence, a high degree of susceptibility to being mitigated and a high degree of significance, especially in the Bajo Yuna area. There will not be a significant amount of domestic residual waters along with the resulting organic and pathogenic materials, especially if the workers are locally contracted and live at home and the relocated workers are lodged in one of the cities near the section of the project on which they are working. Using appropriate measures, as specified in the Environmental Management Plan, these spills will be controlled. In this manner, the probability of occurrence will be moderate, the magnitude will be low, the area of influence will be zonal and there will be a high susceptibility to mitigation along with moderate significance. Additionally, water pollution through oily substances and hydrocarbons from maintenance activities and/or leaks from machinery are predictable. This negative impact has a high probability of occurrence, especially due to the deeply rooted custom of washing vehicles using natural water currents, moderate magnitude and short duration, to the extent that it is hoped that the leaks and/or sources of pollution can be quickly controlled as soon as they are detected. As in the previous case, this effect is totally susceptible to mitigation and has a zonal area of influence, biotic and social implications when there is limited use of recipient waters and also has a high degree of significance. * Effects on the air: With regard to this effect, there will be different effects during the two phases of the project (construction and vehicular traffic): Increase in noise levels: These are brought about to a greater or lesser degree by the diverse construction works and are certain to occur and have a moderate magnitude in general. Although some of the specific activities can generate noise of a high magnitude, this impact will be temporary during the construction phase, especially due to the operation of machinery and equipment, and permanent during 158 the operation of the road due to vehicular traffic. Its area of influence will be local and it will be moderately susceptible to mitigation and of moderate significance. - Suspension of solids in the air: This comes about as a result of the movement of earth and the emission of gases generated by the operation of machinery and equipment, especially during the dry season. This negative effect has a sure probability of occurrence, moderate magnitude, a moderate duration with a seasonal tendency, a local area of influence, high susceptibility to mitigation and a moderate significance. - Emission of combustion gases: Emission of gases into the atmosphere will come from two sources during the operational phase: the operation of construction machinery and equipment and the operation of asphalt plants, located in some of the sources of materials. It is to be expected that this effect will be considerable, given that the movement and pulverization of stone materials along with the production of asphalted concrete generates a considerable effect on atmospheric quality. During the operational phase, there will be mobile sources of emissions due to vehicular hydrocarbon combustion. In order to evaluate their magnitude, the amount of pollutants was calculated for the projected amount of traffic, based on the traffic study and using the emission estimates obtained by Niiio and Ordofiez in 1994 for light and heavy vehicles. In accordance with the data supplied by these two authors, vehicular emissions correspond to those in Table 6.2. Table 6.2 Pollutant emission factors for vehicles Model < 1.980 1.980 - 1.993 H Parameters CO (%) HC (ppm) CO (%) HC (ppm) Heavy 3,7 895 3,5 683 Light 4,0 833 4,0 408 For the purposes of this analysis, it is assumed that all vehicles models will be from 1980 or a more recent model. This calculation assumes a worst case for pollution levels, in so far as vehicles manufactured after that are less polluting. In addition, the newer vehicles tend to be more efficient in the use of fuels and, for this reason the overall consumption per kilometer in this respect will very probably be less than the estimates carried out. Other emissions data have been taken from Weizenfield, (1988) and are as follows: 159 Gasoline S02 = 0.54 ppm NOx = 10.30 ppm CO=3.77% Diesel fuel SO2 = 4.05 ppm NOx = 2.35 ppm CO = 0.97% The densities for fuels are 0.67 g/cm3 for gasoline and 0.90 g/cm3 for diesel fuel. In order to convert the emission values into pollution volumes, the following Weizenfield conversion factors were employed: (op. cit.) Volume (ppm in Vol.) of SO2, multiply by 2.620. Volume (ppm in Vol.) of NOx, multiply by 1.880. Volume (ppm in Vol.) of CO, multiply by 1.150. According to Weizenfield, (op. cit.), 65% of the total atmospheric contaminants emitted in the country are of vehicular origin in the case of Mexico (85% in Mexico City) while this component represents 90% in Santiago Chile and 68% in Brazil. Average fuel consumption for heavy vehicles on the highway according to the engineer Edgar Buitrago (Colombian Transport Ministry, com. pers.) is 0.38 1/km, while that for light gasoline powered vehicles is 0.15 1/km. Cargo vehicles using diesel fuel use 0.20 l/km. According to this same official, 95% of buses use gasoline while 80% of cargo trucks use diesel fuel. It is possible that this data gives rise to a pessimistic view as compared to the proportions for use of diesel fuel in the Dominican Republic and that the real pollution data will be somewhat lower. Using this data along with the estimated traffic projections for the road concession, and which are shown in table 6.3 for the stretch of road from km 0 to km 40 and in table 6.4 for km 0 to km 106, the estimates for fuel consumption and pollution per km traveled were obtained. These are shown in tables 3.1 and 3.2 of chapter 3 for the respective stretches of road (km 0 to km 40 and km 40 to km 106). Table 6.3 Volume of emissions due to traffic (Per km traveled, km 0 - km 40) 160 Overall consumption (1km Types of emis sions Year GV GP DIESEL SO2 NOx CO FUEL ( Ug/M3) (lAg/M3) (g/m3) 2001 315.0 93.1 91.0 1.26 5.66 12.77 2005 368.55 108.98 106.44 1.47 6.62 14.94 2010 448.35 132.41 129.51 1.79 8.05 18.07 2015 545.55 161.01 157.46 2.17 9.79 22.10 2020 663.6 180.98 159.75 2.23 11.59 26.14 2025 807.45 238.66 233.19 3.22 14.50 32.73 2030 982.35 290.45 283.73 4.50 17.64 39.82 2035 1.195.2 353.19 345.31 6.11 21.46 48.44 Table 6.4 Volume of emissions due to traffic (per km traveled km 40 - km 106) Overall Consumption (1/km Emissions Estimates Year GLV GHV DIESEL SO2 NOx Company FUEL qlg/M) qLg/M) (g/m3) 2001 225.00 66.50 65.00 0.90 4.04 9.12 2005 266.25 77.81 76.05 1.05 4.77 10.76 2010 320.25 94.51 92.46 1.28 5.75 12.98 2015 389.7 115.2 112.77 1.56 7.00 15.80 2020 474 140.74 136.99 1.89 8.51 19.22 2025 576.75 170.39 166.72 2.30 10.36 23.38 2030 701.70 207.33 202.48 2.80 12.60 28.44 2035 853.8 252.19 246.67 3.40 15.33 34.60 GLV = Gas consumption for light vehicles. GHV = Gas consumption for heavy vehicles. DIESEL FUEL = Diesel fuel consumption for heavy vehicles. Figures 6.2 y 6.3 show the variations in SO2 pollution. These will go from 1.26 to 4.77 pg/m3 for the first stretch (KO - K40) and 0.90 to 3.40 [tg/m3 for the period upon which the models were based. Nitrogen oxides will go from 5.66 to 21.46 jig/m3 for the first stretch and from 4.04 to 15.33 jtg/m3 for the second stretch. Levels of carbon monoxide pollution, which are shown in figure 6.4, will go from 12.77 g/m3 to 48.44 during this time period for the first stretch of road and from 9.12 to 34.50 for the second stretch. With respect to this point, it is important to clarify that pollution levels would probably be higher if the project did not exist, in that travel times are significantly reduced through shortening the travel distance presently required. In line with this, 161 while the effect is negative with respect to the project's area of direct influence, the over-all panorama will probably be better than it would be if the road were not to be built. 6.3.2 Effects on the Biotic Component The effects on the biotic component are summarized on Table 5.5 and are discussed below: * Effects on the forest component: The influence on the project in its stages of design, construction and operation, allow appreciating the identification of the impacts resulting from the development of activities related to each one of these stages. Within this item of environmental impact, an emphasis is made on the effects and corrective measures to minimize impact during the construction 162 25 20 15 10 5 2001 2005 2010 2015 2020 2025 2030 2035 IS -*- N I Figure 6.2 Daily emission levels of SO2 and NO, in the stretch K 0 - K 40 (Ilg/M3/ per km of the route). 25 - -20 - ,,15 - 10~~~ - 2001 2005 2010 2015 2020 2025 2030 2035 + $S02 -*- NxI Figure 6.3 Daily emission levels of S02 and NOx in the stretch km 40 - km 106 163 (11g/m3I per km. of route) 51 - 41 31 21 11 2001 2005 2010 2015 2020 2025 2030 2035 Aflos |+ KO-40 K40 106 Figure 6.4 Daily emission levels of CO (gIm3/ km of route) activities of the project, as they have the greatest effect on the forest component. In this sense the following effects are produced: * Cutting down trees: The effect produced by the loss of forest layer on a permanent corridor, will not only show the discontinuity, but it will also deprive the natural environment of a normal infiltration area, linearly distributed on the wooded strips that cross the project; this has an impact on the generation of erosion processes, in the regulation of volume of surrounding water flows and in the preservation of the natural landscape and biotic elements associated. Although the road corridor projected intends to preserve diverse sections with the existing roads, the corridor has been considered with a permanent width for the right of way or construction influence of 60 meters; nevertheless it has been foreseen that the effects will pervade this corridor of apparent and momentary influence towards a corridor of balanced influence or direct influence (500 m at both sides of the arterial road). 164 Table 6.5 Evaluation of environmental effects on the biotic component Element/ Action that Effect Probability Magnitude [Duration Area of [ Possibility | Significance environment produces it Type occurrence influence of Effects I Mitigation Biotic Component Vegetation: woods._____ Cutting * 7 Non downtreesg 6, 9 | Certain 73 ha. Permanent Zone mitigating, Very high down trees , f Compensable Vegetation: Pastures & farming Loss of 4 6, 9, 10, 1 NonI pastures and 1 ' - Certain 533 ha. Permanent Zone | n Low cultivation I I Vegetation: protected areas Site: T INon National 6 7, 11 | Certain 30 ha. Permanent Local mitigating, Very high Park Los Compensable H aitises I _ _ _ I _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Fauna: Habitats Habitat 6, 9, 14 a 16 Certain 160 ha. Permanent Zone Moderated Moderate alteratIon , Fractioning Non of wooded 6, 9 Certain Moderated Permanent Zone mitigating, Low habitats Compensable Fauna: Local migrations Fauna is kept 5 a 10, 15 - Moderated Low Moderated Zone Moderated Low away Fauna: Populations Fauna [I [I [ILow to knocked 19 | - Moderated Moderated Permanente Zone Low mowrto down [ l l l [ moderated Biotic quality of waters Changes inf Low to Mdrtd Rgoa ihHg biotic quality 4, 6 a 16, 20 - High moderated | Regional High High of waters. II I I I I I_I Changes in Construction - Certain High Permanent Zone Moderated High 165 For theses reasons the effect of the environmental impact produced on the existing vegetation, by the clearing activities on account of safety and the total and definite elimination of the forest layer to give way to the road corridor is considered negative and of permanent duration, including also parallel strips caused by strong slopes which, for safety reasons should remain clear or with no high vegetation. This effect's area of influence area is considered zonal, because the activities that cause vegetation removal are developed in the right of way specific corridor and in several sectors of the landscape that stretches from the city of Santo Domingo up to the crossing of the Rinc6n del Molinillo. In the sectors where trees associated to housing are planted, usually with fruit trees, the magnitude of the effect is ranked as high as these trees are part of the culture and are an alternative source of food for the population in general. The significance of this effect has been considered as follows: middle in sectors one, two and four, given that the soil use and features allow to carry out an immediate recovery program in the middle term (two years); for the third sector it is considered very high, due to the sensitivity of this ecosystem and to the scarcity of organic soil in the structural surface of low hills that make up the natural area of Los Haitises. The effect on vegetation is immediate because one can forthwith appreciate the consequences of the damage produced: cut down trees, exploitation debris, slope cuts creating rough discontinuities between the foliage curve and the geological shape of the terrain, among others. This effect is considered compensable, provided that the project guarantees a policy to cover taluses and the immediate reposition of the resource with local tree species, able to produce positive effects on the medium term (two years), in areas near to the cleared zones or within the corridor of direct influence. Among the clearing or vegetation removal activities to give way to blaze trails and give a definite shape to the corridor and bench in hilly lands, the following are described: Cutting of trees: it the total elimination of the woods or bushes made using manual tools (machete, axes) or mechanical tools (chain saws), with the purpose of using part of the trees cut. In sites where there is a risk of damaging the premises or the surrounding infrastructure or in cases of steep slopes, this activity must be carried out using fall-pointing strings. One must use equipment suitable to make quick cuts, higher than Imeter diameters; use power saws for cutting the trees and select the timber and the branches. 166 Removal of vegetal lawyer: After cutting trees down, then comes the extraction or total removal of tree roots (base section or trunk neck and root), resulting thus in the definite elimination of adult and young trees, shrubs, grass and pastures. Removal implies cutting down trees, which in general cause the greatest visual impact in wooden areas. Normally the procedure to extract tree necks and roots is made in parallel to the excavations to build the road. Due to the organic nature of the material it should not be dumped into the rubbish dump for excavation material; instead they should be disposed in special sites. Similarly, it is possible to use part of this material for models of biomechanical works. * Effects on pastures and cultivation: Specific effects of this type are found in sections where these cultivations prevail: sugar cane, African palm, trees associated with housing, high vegetation of the Boya river middle basin, low and middle size vegetation of the valleys and hills of Los Haitises natural site, rice and high vegetation protecting the Yuna riverbank. It is advisable to maintain in these sites technical personnel to conduct and coordinate the strict removal of the corresponding vegetation, as well as for handling and recovering immediately the erosion-risky areas caused by vegetation removal. * Effects on fauna: The main effects on terrestrial fauna are: - Changes of fauna habitats: This effect refers to the partial destruction of wooden habitats in 73 ha and a destruction of pasture and cultivation habitats of 533 ha, amounting to a total of 606 Ha, caused by cutting down trees, namely within these coordinates: This negative effect will be certain, its duration will be permanent, as in the road strip vegetation would not be able to grow, its influence area will be zonal along the road corridor, the possibility to mitigate the effect is moderated, given that a decision to vary the road between K42 to K48 could significantly diminish the effect of the wooden area of Monte Plata. Its general significance along the road is moderated to low, although locally in this area it is high - Generation of local migrations by frightening fauna away: Animals are kept away mainly by annoying noises and atmospheric emissions. This effect will be more significant in three areas: Monte Plata wooden zone, Los Haitises zone and in the Yuna river northern plain, where an important population of birds and fauna dwell. In other areas of the road there will be a low magnitude and significance. 167 - Running over fauna: It is foreseen that eventually local fauna populations will be knocked down, especially small mammals and reptiles, and some birds. Although the expected magnitude of this effect will be moderated, it can be greater in Monte Plata wooden areas, in Los Haitises zone and in the Yuna river rice plain. In general, given the features of local fauna, significance will be moderated in these zones and low for the rest. * Effects on the biotic quality of water: Regarding the biotic quality of waters, as stated in Chapter 4, it is considered that all activities affecting the physical- chemical quality of water, that is, sediment, organic and pathogenic loads or hydrocarbons and greases and oil input, will produce an impact on the biotic quality of waters. In this sense, the effect is considered highly probable to occur, of low to moderated magnitude, moderated duration, in a regional influence area, with a high mitigation possibility if the measures proposed in this study are applied, and is highly significant. * Effects on the landscape: The immediate effect caused on landscape by these types of projects is to establish a dividing corridor, which permanently becomes a ribbon that cuts off or fills the continuity line of the natural relief Also the local landscape takes a linear and continuous configuration by the soil usage; the biotic environment associated finds a barrier that prevents vegetal layers linkage, jeopardizing seriously the fauna; erosion focus appear caused by terrain cuts and the quick concentration of rain water falling in the road areas. Therefore, this effect is considered to be negative, with a permanent duration, a zonal influence area, which can be mitigated by applying the proper landscape-handling plan so that its high significance may have softening elements and an approximation to the crossing landscape zones. It will be a permanent effect. 6.3.3 Effects on the Socioeconomic Component Effects on the socioeconomic component are summarized in the evaluation matrix on Table 6.6. * Effects on employment: During the construction there will be positive effects in job generation, amounting approximately to 856 direct jobs, with a moderate duration and during the construction around 78 permanent jobs will be created. These effects are considered highly significant. 168 * Effects on agricultural and livestock activities: The following aspects have been identified in this aspect: Impact on farming lands: Around 533 ha of cultivable land will be subtracted. This is a negative effect, of certain occurrence, permanent duration, and local influence area, non subject to mitigation and of low significance. Increase in agricultural and livestock productivity: Excluding some lands from farming activities to be used in the road will not be translated into a reduction of agricultural and livestock production; on the contrary, in a better access and product transportation which will result in an increase of demand and production. Nevertheless, this is a low magnitude and low significance effect given that, at any rate, farming areas have the proper regional connectivity to transport products. * Effect on the land value: It has been forecasted that one of the most positive effects of building the road is the increase in the land value, which will boost real estate business and will increase production investment. * Effects on tourism: Increase in tourism will be an immediate effect, especially towards the northern coast zone and, eventually eco-tourism will be promoted in the Park Los Haitises, both in its land and sea strips. It will be seen in the gradual but steady increase of the trips of Dominicans (internal tourism). Eco-tourism and/or rural tourism will be the dominant fashion, based on the natural attractions, caves, landscape, rivers and cascades; but especially on the features of so peculiar communities such as the Majagual in Sabana Grande de Boyd, Guaraguaos, in Villa Rivas and Bayaguana in Monte Plata. 169 Table 6.6 Evaluation of environmental effects on the socio-economic component Action that Effect Probable Magnitude Duration Area of Able to be Significance Element/ produces it Type Occurrence influence Mitigated Environmental Effects Social Component Jobs Construction. Construction r + Cera 1 856 Moderated 1 N. A. High Operation. I Operation | [ 78 Permanent Regional N. A High Farming Activities Allocation of Non cultivation 2, 4, 6. Certain 533 ha. Permanent Local °t ti Low lands. Increase of agrarian The project + High Low Permanent Regional N. A. Low activities. Land Value Incd val e e |The project + |Certain Moderated |Permanent [Regional |N. A. J High Tourism Increase of Regional, tourism The project + Certain High Permanent North N. A. | High activity. zone Local trade Increase of01 The project | + I Certain 1 High I Permanent I Regional N. A. High local trade. __ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ Mobilization Reduction of The project + Certain High Permanent Regional N. A. High traveling times. _ _ _ _ _ _ _ _ Reduction of transportation The project + High Moderated Permanent Regional N. A. Moderated costs. _ _ __________ Impact on 7, 11, 14 - Certain Moderated Short Zonal Moderated Moderated vehicle traffic__ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ Infrastructure Improvement in road s The project + Certain High Permanente Regional N. A. High infrastructure &II IIIIII transport. Impact on 14 - Certain 4 roads Short Local Moderated Moderated primary roads. Impact on secondary roads, rural .7 11 | Certain See Temporary Zonal Moderated High paths and l ' Cerain appendix B Permanent entrances to farms Impact on 7, 11, 14 - Certain See the text Short Zonal Moderated Moderated public services _ I I I I ____ Impact on 2 - Certain 809 Permanent Local Low Moderated premises l l l l l l l _ _ Social 170 Generation of 21 Certain Moderated Moderated Zonal High Moderated expectations Relocation of 2 Certain Low Permanent Local Mitigated High Generation of 21 + Certain Moderated Permanent Regional Can be High migratory flows Mitigated Improvement in 2, 21 Certain Moderated Permanent Regional N. A. Moderated life standard t 2 _ _ _ _ _ _ _ _ __ _ _ _ _ _ __ _ _ _ _ __ _ __2 1__ _ _ _ _ _ _ _ _ _ _ Cultural Impact on 4,6 7,9 archeological , 6, 9 Moderated Uncertain Permanent Punctual Moderated Uncertain sites Impact on 4 6, 6, 7, - Certain Uncertain Permanent Punctual Moderated Low heritage 171 The probability that it occurs is certain, high and positive; its duration will be permanent and its influence will be regional. Its growth will be gradual but increasing, because these communities are in an untapped status with all their potential to be exploited yet. It is important to point out that the boost in tourism will be translated into an increase of the demand for agrarian/ cattle raising products and for terrains for investment. * Effects on local trade: The effect on local and regional commerce will be positive and consist of the generation of sales of multiples products for construction, food, drinks, services, and so forth. The effects will be of certain occurrence, their magnitude will be high during the construction stage and moderated afterwards; their duration will be moderated during the construction and is permanent for the demand of products and services associated to tourism. It influence area will be regional. * Effects on mobilization: two types of effects have been detected: - Reduction of traveling times: Once the road is built, the most evident effect will be the reduction of traveling times from and towards the main provinces within the regional influence zone of the project. This will be a positive and permanent effect, with a certain probability of occurrence. Time will be reduced in local, zonal and regional terms. This effect is considered of high significance. - Mobilization costs: the effect on the mobilization cost will be moderated, permanent, positive and will cover all the influence zone both locally and regionally. Although three tollbooths are planned along the road, it is also true that there are tolls in some other areas (Duarte Highway) and in the existing altermate routes to the East of the road planned, there are roads in bad conditions and savings in tolls are offset by higher costs in oil and vehicle operation. - Impact on vehicle flow: During the construction there will be a negative effect on car traffic in the places it crosses the road or in joints to the bridges to be built. In general this is a moderated magnitude effect that will certain occur, with a short duration that will influence the zone, of moderated mitigation and moderated significance. * Effects on infrastructure: The following effects have been identified on the infrastructure: 172 Improvement of the road infrastructure: The resulting effect will be the improvement in integration and communication of the scattered communities or those badly linked to the provinces located in the regional influence zone. There will be an increase in the transportation of persons and merchandises from and to the influence zone. The effect will be permanent and positive, its impact is of certain occurrence, there will be a regional influence and highly significant. * Impact on main roads: There will be junctions with the following main roads: - Autopista las Americas. (Highway) - Carretera Mella. (roadway) - Carretera Monte Plata. (roadway) - Carretera a Ant6n Sanchez. (roadway) These negative effects will have a moderated magnitude, as the crossing with these roadways will be through bridges. The technology to build the bridges is specified in Chapter 3, and the beams will be hoisted during the night and for short terms, the influence will be local and the significance moderated. * Impact on secondary roads, rural paths and entrances to farms: The impact on rural tracks and entrances to farms is presented in an inventory found in Appendix B. This is considered a negative effect, as it will have an impact on rural areas along the way, of certain occurrence, temporary duration for the farms and for some of the rural tracks, which will have a low grade crossing and, permanent for other roadways. Its area of influence will be zonal; presents moderated possibility of mitigation and a high significance. * Impact on public services infrastructure: The infrastructure of the following public services will be affected: - KO+000: Main aqueduct pipe that goes to Santo Domingo. - K8+160: Intersection with the electric transmission line of middle voltage, of 34,5 kw. - K36+275: Intersection with the electric transmission line de Low voltage, de 13,5 kw. - K36+275: Intersection with the electric transmission line, middle voltage, of 34,5 kw. 173 - Slope: Intersection with the electric transmission line of middle voltage, of 34,5 kw. - K85 a K90: Parallel to the current roadway there is a 12" aqueduct pipe - K89+500 - K89+900: Interference with telephone lines. - K89+500 - K89+900: Intersection with the electric transmission line middle voltage, of 34,5 Kw - K90 - K 96: There are 3 pumping cabins for the irrigation system. - K95+347, K97+675, K100+182, K101+595: Junction works of the irrigation project of Aglypo. They are structures recently built. - K96 - K105: Channels of the irrigation system. This negative effect will certainly occur and will have a short duration, as far as it is taken care quickly and prior to excavations, in order to transfer said infrastructure or to partially demolish and rebuilt the infrastructure affected; in this case, its significance will be moderate. On the contrary, it could last longer and the effects of a higher magnitude and high significance. * Impact on premises: To build the road, a total of 379 rural premises and 430 urban premises will be affected. * Social Effects: The following effects have been determined regarding this matter: - Generation of expectations: the impact at socio-cultural level will be higher than the material effects produced by building the road. Based on its traditions and cultural experiences, it is initially expected that the community reacts with doubt and uncertainty but as long as it receives information, it will propose, generate or support alternatives that compensate the negatives effects, which may arise. The community will organize itself spontaneously and will try to be prepared to negotiate. In this process, all sorts of leaders may appear, from true representatives to opportunists. Considering that the road proposes to modify the physical surrounding and the vicinity relations of the population located within the zone of influence, its cultural effect will be certain and definitive during the whole project and the impact on the culture will be very high and long lasting. That is, it will transform the influence area from the cultural standpoint and will bring new elements that will be assimilated by the communities. - Relocation of families: Displacement produces a definite change in the vicinity relations and may create the opportunity for improving the life quality. Its 174 probability of occurrence is certain and may produce momentous consequences for the families affected, from the particular historic perspective standpoint. The design anticipates that displacement be as minimum as possible, clarifying that the families affected will receive compensation from the SEOPC. The Management Plan intends that actions be discussed and direct interaction with the families concerned so that the result is satisfactory for both parties. - Generation of migratory flows: The increase of the migratory flow towards the influence zone of the road is a certain impact, as long as the road will make the transportation of the population easier. This increase will be permanent in all the area of direct influence, in a gradual but growing manner and will be associated with the processes of productive and speculative investment, and to the national and international tourism. - Impact on the quality of life: The movement of equipment and soils, the impact on the premises located within the road corridor and in its surrounding areas, the increase in the flow of all types of merchandises, persons, new investment and similar activities will change the quality of life of the population within the influence area, which may be significant in the short term. * Effects on the cultural heritage: Two effects may be present on this component: - Impact on the archeological sites: The probability of affecting archeological sites is moderated, its magnitude and significance are uncertain. To that end, preventive measures have been designed within the Environmental Management Plan. - Impact on the paleontological heritage: The cavern located in the K1+140 will be affected. This negative impact may be present in some other areas, but if the corrective measures proposed in the Environmental Management Plan are implemented, its significance will be low. 6.4 CONCLUSIONS OF THE EVALUATION The project will occupy an area of 636 ha between the locations of Santo Domingo and Samana (Los Molinillos), in a 60 m. wide and 106 km long corridor. The construction process will affect crops: 73 ha of forest, 34 ha of African palm, 140 ha of sugar cane, 171 ha of pastures, 112 ha of rice, 76 ha of various cultivations. This 175 corridor will also affect 30 ha of the National Park Los Haitises, following the existing road corridor. By applying all the measures of the Environmental Management Plan, namely and strictly in the National Park Los Haistises, this road is considered environmentally and socially feasible. 176 7. ACTION ALTERNATIVES ANALYSIS 7.1 CRITERIA FOR THIS ANALYSIS The criteria to select the alternatives took into account the following environmental and social aspects: * Impact on sensitive areas, such as protected zones and wetlands. * Impact on socially sensitive or vulnerable areas, such as populated centers. * Needs to relocate families. * Impact on forest areas. * Impact potentially unstable areas. * Impact on existing infrastructure, such as roads, channels, public services and private infrastructure. 7.2 ALTERNATIVES CONSIDERED Designs and studies carried out by the company for the highway project, Santo Domingo-Cruce Rinc6n de Molinillos (Samana) road, it starts at a road corridor given by the Secretariat of Public Works and Communications -SEOPC- to the Concessionaire, based on which a first environmental study was conducted. Starting from the original route, field explorations were made to evaluate technical- environmental aspects and the following alternatives were proposed, some of which were not implemented. * km2+300 to km27+000: Made. It avoids the passage by the urban development being currently built in the junction of the Mella road, which minimizes the magnitude of a negative impact on the properties, and allows the continuity of a real-estate development in the zone. It properly intersects the village of Cabreto without affecting the water tanks and the baseball stadium. With this relief road the magnitude of the following impacts is diminished: effects on secondary roads, rural paths and entrances to farms, and to properties. There is no impact on the public services. 177 - It properly crosses the Marucho channel and the Yabacao river, minimizing thus the impact on water bodies by diminishing the intersection length between the borders and therefore the effect on the vegetation layer. - It circumvents the crossing by the village of "Pueblo Nuevo". Avoiding passing through this village we are preventing the impacts that may be generated on the infrastructure such as: impact on secondary roads, rural paths and entrances to farms, impact on properties and on public services, as well as social aspects as family relocation. * km4l+000 a km5O+OOO: Not made. The alternative proposed starts at the abscissa of the current axis K41+450 and meets our abscissa again at K49+774.18, and the abscissa which has the alternative at this point is the K52+012.85, which means that the relief road is enlarged by 2238.67 meters, and it avoids the crossing by a mountain zone with secondary forest. Its analysis is presented in Appendix H and in numeral 4.5.2 which describes the sensitive environmental areas. * km5O+OOO to km K63+000: Made. In fact these are precise variations intended to avoid some sugar mills and their appurtenances: Sabanalarga, Gonzalo, Tarana. In other section the axis was moved so as to take advantage of the tops of the hills and avoid a route at half mountainside that would require building walls. This relief road diminishes the impacts on the community and on the biotic and physical aspects by avoiding the crossing by the watershed and the construction of important works as the walls. * km7l+700 to km72+400: Made. The purpose of this relief road is to circumvent the town of Batey Nuevo, saving impacts such as: Effects on secondary roads, rural tracks and entrances to farms, impact on properties, on public services and relocation of families". Once the road was plotted we observe that new houses have been built within the road zone of the new route. * km82+000 to km84+000: Made. 178 Its purpose is to avoid going through the village of Guaraguao avoiding thus this road to become a urban street, affecting vehicle traffic and the potential danger of accidents with pedestrians, namely school children. * km1O2+500 to kmlO6+020.29: Made. Its purpose is to improve the intersection of the road traced out with the current Nagua-Samana road that was projected between a forced curve of the existing road with a deflection close to 90 degrees, and a bridge no more than 40 m in distance from the intersection site. The new intersection site reaches a tangent of the existing one with wide visibility and with a site to develop the intersection without having to affect the population of the Rinc6n de Molinillos crossing It should be pointed out the appearance of new constructions on the road axis located in the terrain, which is going to have an impact on the pieces of land. 179 8 INTERINSTITUCIONAL COORDINACION AND PARTICIPATION OF THE PARTIES In order to get to know the opinion of the population of the area of direct socioeconomic influence of the road, a survey was conducted that included around 300 families located along the road corridor. In addition to their opinion, primary information is gathered in Appendix J. In general terms, the idea that the community has about the road is very positive. Only 0,3% of the people interviewed answered that they consider the road to be bad for the community. This shows the high acceptance of the project within the population directly involved. 7. ACTION ALTERNATIVES ANALYSIS 8.1 CRITERIA FOR THIS ANALYSIS The criteria to select the alternatives took into account the following environmental and social aspects: * Impact on sensitive areas, such as protected zones and wetlands. * Impact on socially sensitive or vulnerable areas, such as populated centers. * Needs to relocate families. * Impact on forest areas. * Impact potentially unstable areas. * Impact on existing infrastructure, such as roads, channels, public services and private infrastructure. 8.2 ALTERNATIVES CONSIDERED Designs and studies carried out by the company for the highway project, Santo Domingo-Cruce Rinc6n de Molinillos (Samana) road, it starts at a road corridor given by the Secretariat of Public Works and Communications -SEOPC- to the Concessionaire, based on which a first environmental study was conducted. Starting from the original route, field explorations were made to evaluate technical- environmental aspects and the following alternatives were proposed, some of which were not implemented. * km2+300 to km27+000: Made. 180 - It avoids the passage by the urban development being currently built in the junction of the Mella road, which minimizes the magnitude of a negative impact on the properties, and allows the continuity of a real-estate development in the zone. - It properly intersects the village of Cabreto without affecting the water tanks and the baseball stadium. With this relief road the magnitude of the following impacts is diminished: effects on secondary roads, rural paths and entrances to farms, and to properties. There is no impact on the public services. - It properly crosses the Marucho channel and the Yabacao river, minimizing thus the impact on water bodies by diminishing the intersection length between the borders and therefore the effect on the vegetation layer. - It circumvents the crossing by the village of "Pueblo Nuevo". Avoiding passing through this village we are preventing the impacts that may be generated on the infrastructure such as: impact on secondary roads, rural paths and entrances to farms, impact on properties and on public services, as well as social aspects as family relocation. * km4l+000 a km5O+OOO: Not made. The alternative proposed starts at the abscissa of the current axis K41+450 and meets our abscissa again at K49+774.18, and the abscissa which has the alternative at this point is the K52+012.85, which means that the relief road is enlarged by 2238.67 meters, and it avoids the crossing by a mountain zone with secondary forest. Its analysis is presented in Appendix H and in numeral 4.5.2 which describes the sensitive environmental areas. * km5O+OOO to km K63+000: Made. In fact these are precise variations intended to avoid some sugar mills and their appurtenances: Sabanalarga, Gonzalo, Tarana. In other section the axis was moved so as to take advantage of the tops of the hills and avoid a route at half mountainside that would require building walls. This relief road diminishes the impacts on the community and on the biotic and physical aspects by avoiding the crossing by the watershed and the construction of important works as the walls. * km7l+700 to km72+400: Made. 181 The purpose of this relief road is to circumvent the town of Batey Nuevo, saving impacts such as: Effects on secondary roads, rural tracks and entrances to farms, impact on properties, on public services and relocation of families". Once the road was plotted we observe that new houses have been built within the road zone of the new route. * km82+000 to km84+000: Made. Its purpose is to avoid going through the village of Guaraguao avoiding thus this road to become a urban street, affecting vehicle traffic and the potential danger of accidents with pedestrians, namely school children. * km102+500 to kmlO6+020.29: Made. Its purpose is to improve the intersection of the road traced out with the current Nagua-Samana road that was projected between a forced curve of the existing road with a deflection close to 90 degrees, and a bridge no more than 40 m in distance from the intersection site. The new intersection site reaches a tangent of the existing one with wide visibility and with a site to develop the intersection without having to affect the population of the Rinc6n de Molinillos crossing It should be pointed out the appearance of new constructions on the road axis located in the terrain, which is going to have an impact on the pieces of land. 182 9. MANAGEMENT AND ENVIRONMENTAL ADAPTATION PROGRAM 9.1 INTRODUCTION This chapter is the result of the prevention, mitigation and compensation design measurements regarding the environmental effects that have been evaluated in the previous chapter and the implementation of these measures which the concessionaire must fulfill. The Management plan is summarized in Map No. 3. 9.2 MITIGATION MEASURES The mitigation measures encompass management programs in accordance with the environmental protection objectives. Hence, the management programs are: * General Management Measures * Physical Components Management - Water and Soils Protection Program - Air Quality Management Program - Taluses Stability Management Program - Garbage Dumps Management Program - Source of Materials Management Program * Management of the Biotic Component - Vegetation and Substratum Management Program - Fauna Protection Program * Landscape Management Plan The social administration plan is comprised by the following programs: * Information and Community Participation Program * Environmental Education Program to Contractors and the Community * Local Employment Support Program * Industrial Safety and Operational Health Program * Archeological Management Program And two special programs: * Management of the passage through the "Parque Nacional de Los Haitises" * Families Relocation Program 183 9.2.1 General Management Measures The general measures to be complied by the concessionaire are clearly detailed in Chapter III of the SEOPC Environmental Manual (Aristizabal and Moreno, 1986) and must be followed precisely by the contractors, according to Resolution No. 1-97 of the Public Works and Communication Secretariat. To oversee such compliance, the concessionaire or the contractors must have a work's environmental resident, in order to verify that these measures are complied with, and who will generally instruct engineers and personnel on the worksite regarding the application of this environmental management plan. Also, the concessionaire must carry out environmental supervision, within its daily control activities. The concessionaire and its contractors must spread the complete Management Plan to their workers, through conferences, and informative and preventative notices regarding environmental issues. There will be special economic sanctions established for non-compliance of these measures, especially those relating to water, soils and atmospheric pollution. 9.2.2 Physical Component Management The Physical Component Management Programs are as follows: a) Water and Soils Protection Program: In order to adequately protect waters and soils, especially aimed at preventing environmental impacts on soil pollution and the alteration of the physiochemical and biotic quality of the waters the following measures must be applied: * Personnel Camp: There are no specific measures to be taken regarding the camp considering the possibility of contracting local workers, either in capital districts or in rural community close to road, it is not imperative to create a separate camp for these workers. Since, the workers will go to their own homes once they have finished their workday. Regarding the contractors' professional and supervision personnel, a small house in the capital districts near the project should be rented, with the double purpose of using it as living quarters for the personnel and the administrative offices for work fronts. The round trip from the job site should be no more than 15 kms. 184 * Work Camps Management: The work camps, including the machinery yards, workshops and fuel storage areas should be appropriately located, in other words, away from the river banks and other bodies of water, they should not be located close or upstream to aqueducts water inlets, they will have a septic tank, and in the yards there will be drainage ditches constructed, which will collect rainwater and will in turn direct it to a special grease trap before its final disposal (an assessment should be made as to the possibility of renting an area close to a home, that already has a septic tank or a connection to the sanitary sewer system). Card No. 1 details this requirement. These shops will be have the appropriate fire control equipment, as well as a perimeter ditch surrounding the work area for rainwater collection, with a grease trap and a sediment trap, so as to prevent contribution of these substances to the natural drainage system. Figure 9.1 shows the typical design for this grease trap, Figure 9.2 shows the typical design for the sediment trap, and Figure 9.3 shows the typical design for a septic tank. Dimensions will depend on the size of the work camp and population to be served. It is also required in the fuel and lubricating oils storage area to build a watertight perimeter dike, with sufficient capacity to contain the possible spillage of these substances. Figure 9.4 shows the typical design of this zone. Another important measure consists of the installation of portable sanitary cabins in each work area, which will have maintenance and periodic treatment service of excrements, prior to final disposal or dumping. Likewise, there will be careful collection of solid residues, which should be separated in accordance with their characteristics as follows: - Scrap metal and recyclable metallic waste - Paper, cardboard and recyclable waste - Recyclable glass waste - Reusable wood waste - Non-reusable wood waste - Greases and liquid oils waste - Waste contaminated with greasy material - Organic waste - Sanitary waste - Hazardous waste (welding tails) 185 Figure 9.1. Typical design of grease traps 186 ElK~~~~~~~ L2r TRAMPA DE GRASAS SECRETARIA DE ESTADO 'r r DE OBRAS PUBLICAS .... -or-' colombiano s.". ESTUDIO DE IMPACTO AMBIENTAL DIS ENO CARRETERA SANTO DOM INGO CRUC E RINCON DE MOLINILLOS REPOBLICA DOMINICANA !- I Figure 9.2 Typical design of sediments trap 187 t~~ ! / -- ~ ~ ~ ~ ~ ~ - - - - - -- - // //z A\\\~~~/ PLANTA - SEDIMENTADOR SECRETARLA DE ESTADO '- DE OBRAS PUBLICAS '4 consu otori colombinona s.. Y COMUNICACIONES Kw ESTUDIO DE IMPACTO AMBIENTAL DISERO CARRETERA SANTO DOMINGO CRUCE RINC6N DE MOLINILLOS REPOBLICA DOMINICANA Figure 9.3 Typical design of a septic tank 188 I I -1 0 ,,GFtETARIA DE ESTADO DE BRA PULICS C ..:.Iorl coomban,a.) DISER CA RREESTA ERA! .': : ' RINCON DE MOLINILLOS REPOBLICA DOMINICANA SER"AI 'E ESiD ' ', DE OBRAS PUBLICAS 1 consultorta colombiona s.a. Y COMUNICACIONES ESTUDIO DE IMPACTO AMBIENTAL DISEfO CARRETERA SANTO DOMINGO CRUCE RINCON DE MOLINILLOS REPOBLICA DOMINICANA Figure 9.5 Typical design manual sanitary fill 190 z 0 z LI) -LJ Of w SECRETARIA DE ESTADO h o utri clmbno .. ;~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~~~~-ni :FF! DIN' t DEOBRASPUBL~~~~~~~~~ ~ ~~~~~~~~~~~~~~~~iAs fj . Y COMUNICACIONES l~ l l . . E i 1. ~~~~~~~ESTUDIO DE IMPACTO AMBIENTAL DJSERO CARRETERA SANTO DOMINGO CRUCE *:i-H 'A4^1A!S r'4 A.....^l RINCON DE MOLINILLOS REPOBLICA DOMINICANA _~~~~~~~~~~~~~~z)fM Santo Domingo Road - Rinc6n de Molinillos Crossing Program for protecting water and soils Card No. 1 Measures: Managing work camps. Program Objectives: This program aims at preventing natural water and Purpose of soil pollution crossed by road in the project's area. measure Prevention [ Mitigation Correction Compensation Impacts to be mitigated: Type of * Polluting soils. Action * Polluting with water containing bacteria and organic matter. Procedure _ * Polluting waters with grease, oils and hydrocarbons. Civil work(s) [ * Contributing soils to the natural drainage. Shop _ Scope: Building the works and maintaining them. Area Coverage: All work camps Term to execute the work: At the time when the camps are being set up. Accountable perdon Coordinating and Agreeing with: Contractor Inspection Civil The Inspection of the work shall works see to it for the construction, Secretariat maintenance and adequate F1 n] operation of the systems. Description: Constructing perimeter ditches, grease traps, sediment traps and septic wells. Not to establish a rural personnel camp, installing portable toilets at each worksite, which will be serviced periodically and have adequate treatment, before final disposal. The solid residues will be prepared and separated and recycled; they will be disposed in municipal land fills or, when there aren't any, a manual sanitary land fill will be built, In Figures Nos. 9.1 to 9.5 the typical designs are shown. Resources: They should be included within the camp's operational and set up. 191 * Management of Machinery and Equipment: Due to the fact that a lot of the environmental impact effects are produced as a consequence of machinery and equipment usage, at times because the equipment defective, the following measures are to be followed: Mobile equipment, including heavy machinery, must be in good mechanical and carburation working order, in such a way that it will burn the minimum fuel required, minimizing atmospheric emissions. Also, the motor's muffler system must be in good working order, to prevent excess noise. At the same time, fuel or lubricant leaks, which could affect the soils or watercourse. Machinery oil changes must be done very carefully, disposing the used oil into special containers for appropriate disposal, and must be removed from the work site to nearby locations or preferably be recycled. Under no circumstances these oils may be poured into water currents or on the ground. These measures are summarized in Cards No. 2 and 3. * Management of grinding plants and concrete and asphalt plants: Due to the fact that the construction materials will be purchased at existing sources, the measures required by them, should correspond to the stipulations within the respective environmental management plans and the required environmental licenses. The concessionaire must present a copy of these environmental licenses to the environmental protection agency, which will, in turn, present them to the SEOPC with their first report. The asphalt plants should have the required air filters (with sleeves or electrostatic precipitators, as applicable) and also have a high enough chimney to prevent pollution of the lower atmosphere. These following additional measures are to be followed: * Under no circumstances may the contractor or subcontractor wash their cars or machinery in the river or streams nor throw waste into the bodies of water. * Cutting of materials and dirt movements should be done very carefully, especially in close proximity of the bodies of water, so as to prevent sediment contribution into these locations. * Air Quality Control Management Program: This program includes the following measures: 192 Santo Domingo Road - Rincon de Molinillos Crossing Program for protecting water and soils Card No. 2 Measure: Managing machinery and equipment. Program Objectives: This program aims at preventing natural water and soils Object of pollution that the road crosses at the project's area. Measures Prevention Mitigation Correction Compensation _ Scope: Compulsory for all machinery, equipment and vehicles. Type of Action Procedure 3 Civil work(s) Tallerl Impacts to be mitigated: The ones enunciated in Card No. 1 Area Coverage: Along all the works. Term to execute the work: During the construction stage. Accountable person Coordinating and Agreeing with: Contractor Inspection Civil And under the works supervision of the Secretariat civil works Inspector. Description: Oil changes must be carefully carried out, disposing of oil in drums, so that they may be taken out to appropriate sites in nearby settlements. Under no circumstances such oils should be disposed in water streams or soils. Under no circumstance would the building company or any of the subcontractors wash vehicles or machinery in rivers or brooks nor may they dispose of waste into water bodies. The mobile equipment, including heavy-duty machinery shall be in good working condition mechanical and intemal combustion, so that it bums the minimum necessary fuel, minimizing the atmospheric emissions. Likewise, the exhaust should silence the noise properly, so as to avoid excessive noise. Likewise oil and fuel spills would be prevented so as not to affect soils and water streams. Resources: Included within the budget of the civil works does not require additional budget line items. 193 Santo Domingo Road - Rinc6n de Molinillos Crossing Program for managing air quality F Card No. 3 Measure: Maintenance of machinery and equipment muffler systems as well as having adequate carburation and tuning engines so as to minimize noise and pollution; humidifying the way. Program Objectives: Mitigating the noise level, concentration of solids Object of suspended in the atmosphere and gases pollution. Measures Prevention Mitigation @ Correction Compensation _ Scope: Performing actions to prevent and mitigate the impact caused by gas Type of emissions on health of the working personnel and inhabitants in the project's Action area of influence. Procedure Civil work(s) Taller Impacts to be mitigated: Increase of the sound pressure levels. Particles suspended in the atmosphere. Polluting atmosphere with combustion gases from machinery and equipment. Area Coverage: Along the entire roadway Term to execute the work: During the construction and Maintenance stage of the roadway. Accountable Coordinating and Agreeing with: C Inspection Civil The civil works Contractor works inspector. Secretariat Description: The machinery to be used in construction of the civil works must be of recent models and must have silencing exhausts. The roadway should be properly irrigated so as to avoid dust in suspension within the atmosphere. Such spraying must take place particularly during the dry season and when the construction is being carried out near homes or populated centers. In Figure No. 9.6 the respective design is presented. There may be no buming or heating of asphalt mixtures with firewood. The bulk transport trucks must have bumers for such purpose. Resources: Included within the budget of the civil works does not require additional budget line items. 194 * Noise mitigation: Involves the maintenance of all the motor muffler systems to be kept in good order to prevent excessive noise levels and this is complemented with adequate industrial safety requirements which will be presented in another section. Regarding the asphalt plants, these should count with the items detailed in the previous paragraph. The asphalt plants will be located at the materials source location, away from populated areas, that is why the noise management will be addressed under the issue of industrial safety and occupational health. * Mitigation of solids suspended in the atmosphere: To fulfill this requirement, it is necessary to wet the road by irrigating it, especially during the dry season and when construction is taking place in areas close to populated areas. This irrigation will be done by a water tank truck with a special horizontal hose that will be parallel to the roadway, equipped with the appropriate nozzles designed for that purpose. The design of this piece of equipment is presented in Figure 9.6 * Mitigation of atmospheric pollution due to fuel gases: To fulfill this requirement two measures are to be followed: it is prohibited to burn anything in the surrounding areas. This measure protects against forest fires and any other type of vegetation fires; therefore, heating asphalt bindings may not be done with wood. The asphalt trucks that spreads the asphalt shall have the respective burners. The second measure consists of maintaining machinery and equipment in good working conditions, mechanical and synchronized, aiming at having stoichimetric combustion. * Taluses stability management program: So as to guarantee the stability of cut taluses, these have been designed as follows: - Lot I Taluses 1:1 V:H - Lot 3 Taluses 4:1 - Lot 4 Los Haitises zone taluses 4:1, with banks 2 m wide for 10 m of height - Lots 2 and 5 - there are no cuts Figures 3.2 to 3.6 (Chapter 3) show the designs of these taluses. In the areas where there are cut taluses with soluble porous limestone, it has been decided to coat the talus with concrete grout. The embankment taluses have been designed with a slope of 1:2. Due to the fact that talus designs are an integral part of the construction plans, it has been determined 195 I, ~ ~ ~ ~ ~ ~ ~ that it is not necessary to create a card for specific environmental management for these taluses. * Management program for disposal sites of cut waste: Since Law 83 of 1989 prohibits to unload solid waste coming from the construction of streets, avenues, sidewalks, and road banks, green areas, waste lands, squares and public gardens in urban or suburban areas of the Dominican Republic, except those areas that have been designated as fill areas, in which case, all that is required is the permission of the property owner of the area. Specific areas for disposal of this material have not been determined at this time, allowing the contractor to negotiate his own agreements with property owners as to which areas may be used for this purpose. The following requirements regarding disposal of this debris material must be conformed to: * The disposal material may not be thrown in vegetation or forest areas. The disposal should be completed in areas of very little vegetation, especially herbaceous vegetation. * The disposal of this cut waste may not be thrown into areas close to bodies of water, and under no circumstances this waste may be placed closer than 40 m from any body of water. * The waste materials may not be placed directly on the ground without prior removal of the top soil or the vegetal layer, which will be stored next to the waste materials, covered with plastic, so as to prevent loss of said material trough rainwash or wind erosion. This material will be subsequently extended over the accumulated material and then start a revegetation process. 196 Figure 9.6 Irrigating roadways 197 i' I I~~~~~~~~~~~~ SECRETARIA DE ESTADO ' |'o DE OBRAS PUBLICAS (Z ' om n so. YCOMUNICACIONES . ESTUDIO DE IMPACTO AMBIENTAL DISENO CARRETERA SANTO DOMINGO CRUCE RINC6N DE MOLINILLOS REPOBLICA DOMINICANA The disposal site for cut waste will be designed pursuant to the following criteria: * An embankment will be built in horizontal compacted layers compacted with a D-6 type bulldozer and a minimum of 5 passes of the bulldozer per layer. The compacted thickness may not exceed 30 cm. * The embankment will be shaped as a truncated pyramid, whose side slopes may not have an inclination greater than 1.5 H:IV. * The height of the embankment may not exceed three meters. * The surface and sides must be covered with grass as the embankment is developed. * The upper part of the embankment must be provided with pumps in order to prevent pools of water to be formed and their saturation. Card No. 4 shows the details of this management. The details of the revegetation measures are presented in the respective card. It is foreseen as disposal sites for cut materials (unusable material and surplus material) will be located along the project's corridor, within 60 m and the quarry located inside the Los Haitises Park at about 200 m of the abscissa design K83+200. Also under consideration for debris disposal are the areas next to the bridges of Mella (abscissa K8+100) and Monte Plata (K36+250). * Sources of Materials Management Program During the design phase of this project, a group of sources of material were considered and selected which are at currently operating alongside the length of the project area and within the zone of influence of the new road, which makes a difference in transportation time to and from the site. Document 676-IPV-01.0 presents the studies made regarding the sources of materials; those who are able to supply the volume and quantity of aggregate materials required for hydraulic concrete and asphalt as well as filler materials and granular layers for the pavement structure. Figure 3.8 shows the sources of materials that have been selected for this project. 198 Below is a description of the sources of materials detailing their location, access, exploitation reserves and use of materials provided by them. * Bocachica Area The open quarries located in Bocachica meet the standards described in the "American Society for testing and Materials" (ASTM). The material is a dense coralline limestone, "hard", porous, very permeable and permits for fast natural vertical drainage. It is also, highly resistant to abrasion and uniaxial compression, which is the reason for the selection of this material that is appropriate for any type of construction, not only for the petroleum aggregate in preparing hydraulic asphalt aand concrete but may also be used as fill layers. * San Isidro Area In this quarry we found marly limestone, with a color between cream and yellowish, poor permeability, covered in great part of residual lateritic soil with a dark red or brick red color. The thickness of the soil varies from a few centimeters to several meters and it is greater in the karstic drains or dolimes. This coralline limestone that covers the whole perimeter of the San Isidro Air Force Base, is poorly cemented, and is placed among with marly layers where clayey materials are abundant. For this reason, they are low in cutting resistance, which facilitates excavation and the development of quarries, from which the material known as "caliche" is extracted * San Crist6bal Area There are several grinding Plants located in this area as well as several plants that produce asphalt concrete as well as hydraulic concrete. The aggregates produced have an alluvial origin. The geomechanical characteristics make it possible to use the materials as aggregates such as components for asphalt and hydraulic mixtures * Monte Plata - Bayaguana Area The concession of this mining exploration is called "Trinidad II". This concession is located approximately 65 kms to the Northeast (NE) of the city of Santo Domingo, in the Municipality of Bayaguana, Province of Monte Plata. The access from Santo Domingo is made through a paved road to the Municipality of Bayaguana, covering some 54 kms. From Bayaguana the distance to the work site is approximately 12 km on a secondary road that covers the distance between Bayaguana and Pulgarin El 199 Gunito. This roadway is presently under construction and should be finished with a layer of asphalt. The Corporacion Minera Dominicana S.A. has decided to investigate the potential in the limestone rock formations that exist within the area of exploration in their Trinidad concession to evaluate an alternative use for this type of rock in the production of aggregate materials to supply the construction industry. The results of the laboratory tests indicate a potential use for asphalt and hydraulic concrete, granular base and sub-bases. During the development of this document the Department of Industry and Commerce of the Dominican Republic gave extraction permission for the construction of the Multi-Modal Caucedo de Bocachica Port. * Sabana Grande de Boya Area Under the coordinates 0417051 mE/2084357 inN, there is a quarry built out of sound rock, dacite-andesite, gray-green in color, fine and medium crystalline texture. It is very diaclastic with a fine irregular spacing, without preferential orientation. Slightly altered, when broken it is fragile and moderately compact. The crystals may be identified, and the plagioclases show some decomposition. Locally, there is a certain moderate grade of alteration and pseudo-stratification N65°W/57°SW. Towards the NE, there is a gradual contact of the dacite-andesite with a calcareous andesite tuff dark green to blue in color, schistose and banded, and at the same time, it is wide and large. Towards the dacite-andesite, the tuff shows a certain degree of alteration and oxidation that allows it to be easily pulled out. It also shows fine levels of cemented lutite and hard brown slate. It is a 150-m x 200 m x 15-m quarry that is presently being explored in a much more planned manner, although it is not developed in banks. The potential is somewhat limited due to the clays and the Icaco river bed to the NE. Further to the NE a quarry was found on the coordinates 0417627 mE/2084409 rnN. Made up of silicified andesite rock, sound, gray to greenish gray in color, very compact medium and fine stratified grain N600E/600SE, in thick to massive layers, slightly altered, with a degree of oxidation, silification and epidotization. The material also presents certain dibasic and quartz dikes up to 10 cm. It also presents 200 I' certain basaltic gradation towards the North inside the quarry, that is currently inactive. As with the other quarries, the excavation that has taken place was done by tearing the superficial material or weathered covering of the rock, due to the ease of removal. For this reason, the topography indicates a nucleus or small hill in the center. This quarry has an almost circular formation. Towards the South as well as towards the North, there is a limit of very weathered sterile material due to the advanced degree of decomposition. However, the quarry has a development potential towards the North. The size of the actual excavation is around 125 m x 75 m and a thickness of 15 m to 20 m. However, due to the high topography, should a drilling be required, the length should exceed 20 m to allow for a sufficiently thick cut inside the fresh rock. * Guaraguao Area/zone This zone is the one that is proposed for use of the quarry located on the right margin next to the existing cart road used to cross Los Haties park. This quarry was explored several years ago and ceased operations completely in the last five (5) years. We plan to use the quarry to extract the fill material and improved sugrade needed for the road between the K82 and K84, which are located inside the Park area. Once the material has been extracted, a morphological recuperation and restoration plan will go into effect in the area. * Samana Zone There are several quarries located in this area mainly in Catey and in Sanchez, which are presently being excavated. The materials excavated for crushing are subbase, base and asphalt concrete, there are also materials available for fill and subgrade improved. The location of this quarry regarding Km 106 of the project, is about 18 km away and the access road is the roadway that links Nagua with Sumana. According to the listing presented by the Department of Industry and Commerce, General Mining Division, last month of July, 2002, within the Sumana area and the surrounding areas of the project, there are currently four (4) mining concessions. From the samples have been taken from the quarries, there were classification assays conducted: grading by sieves; liquid and plastic limits; specific weight of aggregates; 201 tests on quality aggregates; wear on the Los Angeles machine and solidity with sulfates. These results are described in the following table: 202 ,~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Table 9.1 Characteristics of source of materials No Source % that pass IP D S A 11/ 1 3/4 Vz1 3/8 #4 #10 #16 #40 #50 #100 ~~~~~2 I Tavares 35.7 47 6.03 2 La Borda 133 3.4 3 San Isidro 64 40 21 NP 4 Anton 58 - 31 15 10.8 Sanchez ___ 5 San Crist6bal 100 89 78 .57 43 29 13 NP 13 2.7 6 Trinidad I 7 Benoa- 83 67 56 43 34 26 17 9 45 Comatillo 8 Primavera 11 12 3.0 0.4 9 Pringamosa 100 89 82 69 47 30 16 NP 13.1 10 C.E.A. 60. 45 32 21 16 10 6 5 2 2 1 NP 25 11 11 Sanchez 91 66 56 45 37 24 16 14 11 10 9 12 23 6.5 12 Civilcad _ _ 31 5.7 28 D: Wear and tear S: Solids A: Absorption Based on the results of the study completed for the sources of materials and the volumes demanded by this project, the following companies were selected as sources to supply materials for this project, which are shown in Table 9.2 . Table 3.7 shows the Plan for using the sources, whose volumes are expressed in compact cubic meter in the road. Annex L shows the summary of the laboratory tests and the environmental permits, mining resolutions and status of the environmental permits requested. Table 9.2 Source of materials No Source Identification Lab tests Existing Documentation I Tavares Bocachica Area Yes Included in this study 2 La Borda Bocachica Area Yes Mining Resolution No. XII/0O (Concession to exploit). Reserve 21,000,000m3, sup 315Ha and lOm deep 3 San Isidro San Isidro Yes Included in this study 4 Anton Sanchez Alba Sanchez Included in this study 5 San Crist6bal Proposal 6 Trinidad Trinidad 11 No Environmental license No. 0036-02 to supply building material from the multimodal Caucedo port (75,000m3 of rock). Reserve 38,000,000m3. The evaluation document reports that the "Subsecretaria de Gesti6n Ambiental de la Secretaria de Estado de Medio 203 I~~ ~~~~~IIIIIeautn h I 204 Table 9.2 Source of materials No Source Identification Lab tests Existing Documentation 7 Benoa-Comatillo Concession Rey Yes Included in this study Salom6n 8 Primavera II Proposal 9 Pringamosa Proposal 10 C.E.A. Sabana Grande Yes Included in this study. Volume de Boya undefined for explication 11 Cantera Haibises Zona Guaraguao Yes Included in this study 12 Sanchez Zona de Samand Yes Included in this study 13 Civilcad Zona de Samand Yes Included in this study 9.2.3 Management of Biotic Component Management of vegetation and substratum management program: Within the corresponding environmental measures regarding vegetation, the following concepts are proposed that have to do with prevention, control, repositioning and environmental compensation. These are arranged by activities taking into account the development the project's construction stages and operation, whereby the following considerations are stated: 205 Santo Domingo Road - Rinc6n de Molinillos Crossin Program for managing cut wastes disposal sites Card No. 4 Measure: Managing garbage dumps according to design. Program Objectives: Adequate management of garbage dumps, avoiding Object of leaving waste along the way. Measures Prevention [ Mitigation Correction [ Compensation Scope: It implies orderly development of garbage dumps, geo-morphological Type of formation and revegetation of garbage dumps. Action Procedure _ Civil work(s)[i _________________________________________________ Taller 1 Impacts to be mitigated: Generating erosion phenomena and instability areas Sediments contribution to the drainage system Unnecessary cutting down of vegetation Unnecessary occupation of farm lands. Area Coverage: At the sites selected for waste disposal Term to execute the work: During disposal of cut wastes, in the construction phase. Accountable person Coordinating and Agreeing with: Inspection Civil Farm owners or in the Contractor works road's strip Secretariat F~1 H n n Description: An embankment must be constructed with horizontal compacted layers. The thickness to be compacted cannot exceed 30 cm. Th embankment will be shaped like a short pyramid, whose faces may not be inclined over 1 .5H: IV The embankment may not be over three meters high. Both the surface and the faces must be covered with grass as the formation advances. The upper part of the embankment must be provided with pumping in order to prevent water pools formation and thus its saturation. Resources: Included within the construction expenses. 206 * Compensation: This concept is defined as a measure of linking the landscape along the roadway corridor and the object of this compensation is to provide natural and preventive protection to river beds close to bridge constructions. The compensation, in this case, responds to the inevitable impact of the project along these same riverbanks. It sets out the development of reforestation programs of valuable species of trees for use and protection of water banks, close to the project's right of way. This compensation pretends to cover a total of 1000 meters of upstream and downstream banks. The program involves the following measures: * Clearing of construction corridor: This program's main objective is to clear the construction corridor in its minimum width considered, complying with the preservation of the project's surrounding vegetation, as a principle of improving the ecological roadways. This measure implies the following activities, summarized in Card No. 5: * Cutting down trees: This work is defined as cutting down trees that are taller than 6 m, that should be marked by the technician in charge, so as to eliminate the ones that are strictly necessary. This work will be coordinated with the topography team that will replant the corridor. The following procedure should be taken into consideration when developing the above activity: , - Safety analysis consists of taking all the necessary precautions with regards to possible risks when trees are brought down. The required projections should be taken around the tree in question, and observe the viable alternative fall of the tree (in general, it corresponds to the direction the tree is tilted). - Felling: it will demarcate a fall cone where a hole is demarcated, that the power saw operator makes in two cuts, in a wedge shape. This cut will be deepened according to the tree inclination, between a 25% to 50% of the trunk diameter. Once this hole is removed, and the lower cut reshaped, proceed to final clearing, making a straight and definitive cut on the opposite side of the hole; the operator must change his position and with not much of a risk make the cut as straight as possible to prevent the three from trapping the equipment's blade. On the ground, the tree will be cut into sections to be used on other areas of the job site or in the creation of bioengineering models to control or prevent erosion centers. 208 I Santo Domingo Road - Rinc6n de Molinillos Crossing Program for managing the vegetation and substratum Card No. 5 Measure: Cleaning the construction corridor. Program's Objectives: Carrying out the cleaning of the construction Object of corridor in its minimum width considered, complying with preservation Measures of the surrounding vegetation to the project as a principle to heightening Prevention _ the ecological roadways. Mitigation _ Correction [ Compensation _ Scope: Performing this activity in a technical fashion along the road's Type of route, making and inventory of the specific forms and the types of Action vegetation to be intervened, so as to define the byproducts that may be Procedure _ used and waste materials to be disposed on the decomposition sites and Civil work(s) possible use of this organic matter in reforestation programs. This Shop inventory of areas will define as well the actual areas that must be compensated. Impacts to be mitigated: Damage to neighboring vegetation. Accidents with workers and third parties. Area Coverage: All sites where tree cutting takes place. Term to execute the work: Construction. Accountable person Coordinating and Agreeing with: Contractor Inspection Civil With the civil work inspector. works Secretariat FrI H H Description: Cutting trees: Including the safety analysis and a controlled and directed felling of trees, Disposing of vegetal waste (See text for a detailed description). Resources: For high forest an estimated costs of RD$ 111.000 /ha. For a total of RD$ 3'740.000 For medium forest an estimated costs of de RD$ 74.000/ha. For a total of RD$ 444.000 For low forest an estimated costs of RD$ 37.000/ha. . For a total of RD$ 1I 110.000 210 Figure 9.7 Repositioning Taluses 215 l ~~~~~~~~ '4 SECRETARIA DE ESTADO ' rI DE OBRAS PUBLICAS A) . .. Storfa c, . YCOMUNICACIONES 4 ESTUDIO DE IMPACTO AMBIENTAL DISEFO CARRETERA SANTO DOMINGO CRUCE RINC6N DE MOLINILLOS REPOBLICA DOMINICANA - Preparing the soil: The soil shall be conditioned through a cleaning process (picking up and eliminating the construction waste, stones, roots and clayey blocks that are difficult to desegregate), regrind (maximum granulometry level of 2.5 cm. in diameter) and leveled (leaving a slight slope towards the natural drains or collection ditches. - Sowing adaptation: This adaptation is aimed at making up a 10 cm. surface layer, appropriate for seeds germinating and adequate for pastures during its first stage (1 - 2 months). The soil will be enriched by applying organic material (compost) in a 2 kg./m2 ratio; it should be humidified and on the 8th day raked manually with in order to eliminate weeds that may have germinated; then a planting is made by scattering, mixing the seeds (Brachiaria decumbens, Cynodon sp.) with rice husks or sand in a ratio of 1 kg. of seeds to 3 kg. of husk, subsequently carry out fine spraying irrigation. After two months the wide leaves population will be reviewed, so as to provide a control via a herbicide (Tord6n 101 SL), in a dosage of 25 cm3 x 20 liters of water. * Reforestation: this measure is established pursuant to guaranteeing the vegetation management that is found in the roadway corridor as defined in the project; as well as reforesting special areas considered within the area of influence. The procedures are as follows (see Card 7): * Planting trees: it shall be done, so as to achieve the mitigating effect along project's corridor of influence, with arboreous elements, aimed at to protecting and managing the lanscape. The planting trees characteristics in the project address a scenery effect along the parallel strips and adjacent compensation areas to the corridor on a medium term basis (within 5 years) of the arboreous elements to be used. A mixed vegetation has been selected according to adaptation areas as follows: on stream banks river beds, taluses protection, the lower part of contention walls, terraces around bridge structures and hedges parallel to roadway corridor; areas for which the following instruction is proposed. * Sowing instruction: Spot the planting site as per the design; making an apron 0.60 m. in diameter; dig holes of 0.4 m. in diameter and 0.40 m. deep. In order to provide favorable and adequate texture and pH handling, a specific analyses of 216 the soil must be made to determine the quantity of consistency improvers such as organic fertilizer, husks, sawdust, hen droppings, and acid correctors like calcium, phosphates and magnesium. The resulting composition will be mixed with the soil extracted from the holes, in a ratio of one part of this mixture to four parts of the local soil. Planting the vegetation material eight to fifteen days after preparing the holes. Management and maintenance instructions: these actions pursue guaranteeing the settling of the vegetation material planted in the forest management areas; the Concessionaire must be committed to provide maintenance work, at least during a two (2) year period. The management and maintenance tasks will be of a permanent nature for all vegetation, where there are equal task conditions for all areas. * Fertilization: It is necessary to know the chemical conditions of the soil and the nutritional needs of the vegetation group, so as to permit condition improvements in establishing and growing the vegetation. Adding acid correctors and neutralizing elements will be given by the specific result analysis for each sector reforested. * Irrigation: Foreseeing irrigation needs, according to climatic conditions, it shall be necessary with certain periodicity the coverage of critical areas, for which there must be equipment and an operating systems that guarantee coverage in extreme droughts. * Pruning: pruning is associated with pruning trees so that the foliage volume becomes the desired one, specially in current trees that are close to the roadway; the criteria depends basically on the coverage objectives and the management of micro-spaces. * Grubbing: it consists of removal of weeds and cutting of grass at each of the managed sites must be carried out periodically; at a maximum of 45 days, because weeds grow quickly and compete against desired plants and trees. The study recommends doing the perimeter weed control with machetes. * Replanting trees: Since there are some losses of materials due to mistreatment during transport, manipulation or badly rooted material, a 10% excess material is foreseen to be needed, which should be produced and maintained in the programmed garden centers, to be used as soon as it becomes necessary. 217 * Phytosanitary control: constant revisions shall be made so as to identify the state of plantations and managing to control with sufficient time the plagues and diseases. * Handling the vegetal layer of the soil: this program aims at preserving the vegetal layer of the soil so as to avoid losing a natural resource, by removing it and storing it before making the cut and reusing it in regevetation works of cut taluses and embankments and reforestation programs. The details of such management are in Card No. 8. * Protecting wild life fauna: in protecting the wildlife fauna the following is contemplated: - Prohibiting the use and bearing of weapons in the work areas, except for the security personnel expressly authorized, to avoid hunting activities. - Prohibiting hunting activities in neighboring areas to the construction, as well as buying wild animals from local farmers (live, embalmed or furs), for whatever purpose. - Prohibiting fishing by employees in rivers, brooks, ponds and any other bodies of water, using dynamite, great mullein and other harmful methods. - Along side the roadway, there shall be road sings that prohibit trading with wildlife. One of such signs will be placed in Los Haitises area. These road signs must be attractive and friendly, more educational than coactive. The wildlife protection program is contained in the Card No. 9. In Attachment I there are certain Cards about fauna in the project's area of influence, including marine species of the Los Haitises National Park. * Paleontological recovery: this measure pursues recovering fossils that may be found in the cavern located in K1+540 the road's route. In order achieve this goal the following activities shall be performed: 218 Santo Domingo Road - Rinc6n de Molinillos Crossing Managing program for yegetation and substratum Card No. 7 Measure: Forest Compensation. Program's Objectives: Reforesting special forest areas considered Purpose of being within the area of influence. Measure Prevention Mitigation Correction 0 Compensation Scope: it is defined subject to the congruence with the "Plan para el Type of Manejo Paisajistico" (Scenery- landscaping Management plan), carrying Action out the program in the identified recovery, enrichment and conditioning Procedure [ areas. Its area of influence shall be given by agreement in defining the Civil Work(s) selected management areas. Workshop Impacts to be mitigated: Erosion. Sediment contribution to the natural drainage system. Loss of habitats. Area Coverage: Different zones within the direct area of influence. Term to execute the work: During construction. Accountable person Coordinating and Agreeing with: Contractor Inspection Secretary Secretariat of the Environment of Civil and works inspection Works n _H n_ _ _ _ _ n_ Description: Planting trees, which implies planting, fertilizing,irrigation, pruning, weeding and phytosanitary control. In the text there is a detailed description of these measures. Resources: Reforestation: RD$ 31 '222.000. 219 Santo Domingo Road - Rinc6n de Molinillos Crossin Managing program of the vegetation and substratum Card No. 8 Measure: Managing the removal and storage of the upper layer of soil. Program's Objectives: Avoiding the lost of soil as a natural resource Purpose of and using the material in revegetation works. Measure Prevention El Mitigation [ Correction Compensation L Scope: There will be a management of the upper layer of soil so that it Type of may be reused in the forest recovery measures and grass planting. Action Procedure [ Civil Work(s) Workshop [ Impacts to be mitigated: Loss of the fertile soil layer Area Coverage: Along the roadway. Term to execute the work: Before initiating the cuttings. Accountable person Coordinating and Agreeing with: Contractor Inspection Secretary Under the Supervision of the Civil of Civil works inspector. Works F ] _ _ _ _ _ Description: The environmental Procedures that should be followed appear hereunder: All fertile material (upper layer of soil) that is scraped by the required excavations as per the project shall be stored in the K2 +8 10, in K6+8000 and in K9+ 300 which will be used in restoration measures of the soil in and around affected areas. It shall be placed in adequate places without compacting the material, with the intent of preserving the life of aerobics microorganisms and preserving its physicochemical properties. The soil material shall be handled preferably when it is dry or when its humidity component is bellow 75%, and it shall not be exposed to constant passage by people or machinery, so as to avoid compacting. Once the material has been disposed of, it shall be sprayed with fresh water (1) once a week so as to avoid excess drying and preserving the life of incorporated organisms in it. Care should be taken with the amount of water applied, so as not to cause draining and erosion of the material applied. The residue of slit and clay will be gathered so that it may be mixed with fertile horizon. Resources: The Contractor shall be responsible for performing these measures and the associated costs are contemplated in the provision for clearing and tree cutting in the general budget for the civil work. 220 Santo Domingo Road - Rinc6n de Molinillos Crossing Protection Program for fauna and paleontological patrimon Card No. 9 Measure: Protection measures for wildlife (fauna) Program's Objectives: Protecting fauna from the induced or generated Purpose of effect of the project. Measure Prevention [ Mitigation _ Correction _ _ _ __ . Compensation _ Scope: They are of preventive nature, to be applied along the roadway, Type of with special emphasis on Los Haitises National Park. Action Procedure [1 Civil Work(s) = Workshop _ Impacts to be mitigated: Scaring of wildlife. Increment on hunting activities. Running over wildlife (fauna). Area Coverage: All along the roadway. Term to execute the work: During the construction. Accountable person Coordinating and Agreeing with: Contractor Inspection Secretary Secretariat of the Environment of Civil and works inspection Works Description: Prohibiting strictly the bearing and use of firearms in the working area, except for security personnel. Prohibiting all employees from hunting and trading of wildlife products with any purpose. Resources: included in the duties of the Environmental Resident. 221 9.2.4 Landscaping Management plan The landscaping management plan pursues two fundamental objectives, that is conditioning according to the local scenery elements, for rapprochement of the project with each of the environments that suffered intervention, such as strip to dig wells, which shall be divided in stratigraphies of levels of occupation. - The fossils that are recovered during the excavation process will be registered by occupation levels and shall be studied by corresponding specialists pursuant to their identification. Meanwhile soil samples will be taken of the levels in order to detecting pollen, which would permit the reconstruction of prehistoric flora. - These excavations will be carried out under permanent supervision from a researcher from the "Museo Nacional de Historia Natural" (National History Museum). Once the remains have been studied and the report handed in, such shall be delivered to the Museum, as established by law. The details of such measure are presented in en la Card No. 10. * Fauna protection program: the following measures have been established for protecting wildlife in the project's area of influence: taluses, banks of bodies of water, at intersections with other infrastructure and settlements, natural areas of national interest and in general the improvement of the environmental and the visual aspect of the project's corridor. With that in mind, there is the rustic aspect of species and their coverage characteristics for the area have been taken into account; as well as the analysis of growth characteristics, radical development, of foliage and landscape enhancement, uses of the species and volume developed. The recommended species for this management and heightening of the scenery are presented in Table 6.1, where the commonly used names in the region are included with the technical names. These species are selected keeping in mind parameters such as local presence or regional species to be used as well as their potential use. Within the areas proposed for landscape management the following are included: Bridges and pontoons: in approaching such structure there shall be high visibility thus it is not advisable to clot with high growth species, around them. 222 Santo Domingo Road - Rinc6n de Molinillos Crossing Protection Program for fauna and paleontological patrimon Card No. 10 Measure: Recovering fossils of prehistoric fauna. Objectives of the program: Preserving the paleontological atrimony Purpose of of the Nation Measure Prevention Mitigation [ Correction Compensation _ Scope: Recovering all fossils of prehistoric fauna that is present in the Type of cavern Action Procedure [ Civil Work(s) [ Workshop Impacts to be mitigated: Loss of the paleontological patrimony. Damages to remains of fossilized prehistoric fauna. Area Coverage: Recovering will be carried out in the cavem located in the 1+540 of the road's route Term to execute the work: Before carrying out the excavations in this site. Accountable Coordinating and Agreeing with: Contractor Inspection Secretary "Public Works Secretariat, of Civil SEOPC, "Museo Nacional de Works Historia Natural", Concessionaire. n] H n__ Description: Salvage process shall be carried out as follows: Opening wells, which will be divided in stratigraphies of levels of occupation. The fossils that are recovered during the excavation process will be registered by occupation levels and will be studied by corresponding specialists so that they may identify them. At the same time samples will be taken for the soil at different levels pursuant to detecting the presence of pollen, that would permit the reconstruction of the prehistoric flora. These excavations will be performed under permanent supervision of a researcher from the "Museo Nacional de Historia Natural". Once they have studied the remains and the report has been handed, they will be delivered to the Museum, as established by law. Resources: The resources estimated are RD$ 40.000 and they are the SEOPC responsibility. 223 Protecting the water banks: there shall be a dual purpose of heightening scenery and controlling the undermining accumulation of materials under the bridges and pontoons. As an outstanding species in the area are oak and bamboo. (See Figure No. 9.8). Table 9.3 Recommended species for Reforestation Habitat Common name Species Area (mi) Tree Campano Pithecellobium dulce 40.000 Tree Patevaca Bauhinia sp. 40.000 Tree Flor morado, roble Tabebuia rosea 40.000 Tree Jacaranda sp. 40.000 Tree Terminalia sp. 40.000 Tree Majagua Erythrina sp. 40.000 Tree Guayacan blanco Tabebuia sp. 40.000 Tree Majagua Hura crepitans 40.000 Tree Guarea inchilioides 40.000 Tree Cedro Cedrela sp. 40.000 Tree Igua Pseudosamanea guachapele 40.000 Tree Laurel Ficus benjamina 40.000 Tree Mango Manguifera indica 40.000 "Roseta alta" Palma botella Roystonea regia 40.000 Cane Bambu Bambusa vulgaris 40.000 "Roseta alta" Coco Cocus nucifera 40.000 Vine Batatilla Ipomoea spp. 100.000 Vine Uiiegato Ficus pumila 100.000 Grass Grama Cynodon spp., Brachiaria sp. 1 '272.000 * Hedges: They correspond to the fence lines along side in parallel to the roadway, with bushes, hedges (in housing sites) and trees of great volume and colorful flowers, as well as coconut and royal palms. (Ver Figure 9.9). * Dampening strip on Los Haitises Park: They'll have their influence in the villages of Majagual and Guaraguao, with the implementation of the agricultural forests, keeping in mind the needs of the neighboring population to the park; the use of timber wilding and related fruit trees. 9.2.5 Social Management Plan * Information and community participation program: This program has the following objectives: * Avoiding affecting the normal development of the works, due to conflicts with the inhabitants, institutions and organizations. 224 Figure 9.8 Protecting water banks 225 < X X X X X m m I l~~~~~~~~~~~~~~~~~~~~~~~~~ N4 A~~~~~~~~~~A I~~~~~~~~~~~~~~~~~V ; / .. - / - \. to,~ ~~IC*... <~~~~~SUI DE IMPCT AMIEtA '-t s , - . ~~-/ DSECRlAIAD CSARRETEA SNODMIG RC RINCON DE MOLINILLOS REPCJBLICA DOMINICANA Figure 9.9 Hedges 226 1 m m m~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ L,t - 4clom- _- . . a ¶. / -- -\f - : - 'I 'i ESTUDIO DE IMPACTO AMBIENTAL DISENO CARRETERA SANTO DOMINGO CRUCE RINCON DE MOLINILLOS REPOBLICA DOMINICANA * Maintaining the community informed about the initiation, progress and conclusion of the civil works of widening and improving the road. * Establishing effective information and communication channels between the community and those responsible for the civil works; which will allow to attend in a timely manner the concerns and enabling the community to have a clear knowledge of the project Figure No. 11 shows the details of the management required: * Procedure: The following procedure will be followed: * Informing via community town hall meetings: Actions should be implemented in two instances: - Before starting the civil works: there shall be 5 information workshops conducted for the neighboring settlements to roadway, letting them know the project's duration, designs, costs, work schedules, and information channels between the contractor and community, as well as presenting the companies in charge of the project. Each Workshop will last approximately two hours. Minutes of the meeting will be kept. - During the civil works: there shall be at least two information workshops for the community every two months, in the neighboring settlements in the direct area of influence of the project, where they will be informed on the project's progress. Concerns and complaints will be received and community participation in the proposed educational workshops will be encouraged. These workshops will last on average two hours. Visual and written material use during the workshops is recommended. (Fliers, brochures). Designing messages and progress reports on the civil works, so that they may be broadcasted on the local radio. Periodically, at least once a month. Designing the information fliers in respect of the progress of the civil works and the preventive indications for schools on the roadway. * Environmental education programs for community contractors: this program pursues developing and implementing an environmental training program for the 227 workers of the contractor's and sub-contractors at the managerial, technical and operational levels. 228 Santo Domingo Road - Rincon de Molinillos Crossing Information and community participation program Card No. 11 Measure: Inforrnation for the community Programs Objectives: Avoiding affecting the normal development of Purpose of the civil works due to conflicts with the inhabitants, institutions and Measure organizations. Prevention . Maintaining the community well informed on the initiation, the progress Mitigation and the conclusion of the widening and improvement of the civil works Correction of the road. Establishing information channels and effective communication Compensabon channels between the community and the ones responsible for the civil works; that permit catering in a timely manner the concems and enabling the community to have a clear knowledge of the project. _ Scope: Maintaining the communities within the area of influence Type of properly informed. Action Procedure L Civil Work(s) l l__________________________________________________ Workshop _ Impacts to be mitigated: Conflict Generation. Conflicts amongst the community due to the transit of machinery on the road, noise generation and particle emission during the construction. Affluence of people foreign to the civil works. Alteration of daily activities within the area (affecting the normal transit of vehicles) Community and organization complaints. Area Coverage: Along side the roadway. Term to execute the work: designing, constructing and operating. l Accountable person Coordinating and Agreeing with: Contractor Inspection Secretary "State Secretary for Civil Works" of Civil SEOPC, local Authorities, Works concessionaire. I_n n __ Description: Information via town hall meeting with the community. Before starting the civil works: There shall be information Workshops for each neighboring community. There shall be minutes kept of the town hall workshop meetings. During the civil works: information Workshops for the community will be held every two months. There will be informative fliers handed out. The health centers and the fire department shall be informed of the possible risks that may arise due to the civil works. Resources: Estimated in RD$ 100.000 229 Preparing and implementing a training program for the community within the project's direct area of influence, including educational institutions that facilitate an adequate follow up of the programs included in the social management plan, in such a way that they insure their compliance. 16 Workshops are required, two for each work front. Stimulate adequate use and maintenance of natural resources. Details of the required management are shown in Figure No. 12. * Program for supporting local employment: this program pursues hiring local community non-qualified hand labor within the direct social and economic area of influence. Details of the required handling are shown in Figure No. 13 * Program for industrial safety and occupational health: the objective is developing the occupational health and industrial safety program to create safe and healthy working conditions for all personnel working for the project. Pursuant to the guidelines set by the Labor Secretariat ("Secretaria de Trabajo"), and legal regulation in effect. * Managing program for the archeological patrimony The Contractor shall have, a part time archeologist who verifies the regions where cuts are made, before the activity begins, so as to determine that there'll be no damages done to the archeological or palentological patrimony. In the event there is evidence of the archeological or paleontology findings the The Dominican Man Museum ("Museo del Hombre Dominicano") and Natural Resources and Environment Secretariat ("Secretaria de Estado de Medio Ambiente and Recursos Naturales") shall be informed immediately so that they may be recovered. To that effect, the possibly affected area will be left aside while the actions to be taken are way determined. 9.3 SPECIAL MEASURES 9.3.1 Plan for managing the passage though the "Parque Natural Los Haitises" * Managing the works: The Managing of the works shall be particularly careful within this sector. To accomplish this, there'll be no machinery yards adapted in 230 i I this area, and therefore there'll be no oil changes, refueling or storage of such products within the park. 231 Santo Domingo Road - Rincon de Molinillos Crossing Environmental education Programs for Contractors and community Card No. 12 Measure: Preparing environmental education workshops. Program Objectives: Developing and implementing a training program Purpose of on environmental education to all workers, both for Contractor and Measure Subcontractors workers at different levels: managers, technicians and Prevention _ operational workers. Mitigation Developing and implementing a training program for the community in Correction _ the project's direct area of influence, including the establishment of _ education centers that allows for the adequate follow up of the programs Compensation included in the social management plan, in such a way that compliance is assured. Encourage adequate use and maintenance of natural resources. _ Scope: Educating all contractor's personnel. Type of Action Procedure Civil Work(s) Workshop * Impacts to be mitigated: Limited knowledge that the community in the project's area of influence have about the project. Social Conflicts due to claims and damages during the construction activities. Area Coverage: Workers. Communities neighboring the civil works, Two Workshops per work front. Term to execute the work: At the beginning of the construction and during its development. Accountable Coordinating and Agreeing with: Contractor Inspection Secretary Contractor in respect of Training of Civil workers. The Public Works Works Secretariat of State ("Secretaria H _ _ de Estado de Obras Publicas SEOPC") in what has to do with the communities Description: Training civil works personnel. Training the community. The Workshops will be conducted, pursuant to an schedule agreed upon with the community and at least 15 educational Workshops will take place during the construction process. Audiovisual and written material will be used (environmental brochures and fliers for the community) in supporting the workshop's intent. (See text). Resources: An estimated amount of RD$ 160,000 a) Human Resources: A social worker and an environmental resident. b) Material Resources: Bulleting, Signs, fliers, radio messages in local stations 232 Santo Domingo Road - Rinc6n de Molinillos Crossing Program for the region's employment Card No. 13 Measure: Providing employment for the project's neighboring communities. Objectives of the program:. Minimizing any type of conflict due to the Purpose of construction project. Measure Minimizing any possibility of diminishing the economic income due to Prevention [ the construction of the project. Mitigation Correction _ l _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Com pensation _ Scope: Employing the local communities Type of Action Procedure [ Civil Work(s) Workshop = Impacts to be mitigated: Minimizing any type of conflict due to the construction of the project. Minimizing any possibility of diminishing the economic income due to the construction of the project. Area Coverage: Along the roadway. Term to execute the work: During the construction. Accountable Coordinating and Agreeing with: Contractor Inspection Secretary The Contract's Inspection of Civil supervisor. Works Description: In respect of hiring unskilled labor there shall be a meeting with the local information Group (which shall be set up at the previous meeting held before the work's initiation stage), so as to inform clearly and in a timely manner about the following issues: Required Personnel to carry out the civil work as well as the hiring requirements, specifying clearly the manner in which they will be hired, the typo of payment and the legal fringe benefits to which they are entitled. Type of legal requirements for hiring. Disciplinary Norms and intemal work code. The Contractor shall hire all the work's personnel pursuant to legal regulations in effect. Resources: No additional resources are required than those contemplated in the civil work 233 Additionally, there will be sanitary cabins at each work front, so as to avoid polluting the soil and the underground waters. Likewise there will be trashcans to avoid polluting with other type of waste. Managing the cuts shall be a careful task and the waste or materials that may not be used at the landfills will be taken to disposal sites outside the park. The only site that may be used for disposing of waste in this area shall be in the former source of materials, and only with the purpose of geomorphologic reconstitution, without affecting the vegetation the may have been established. This area shall be revegetized. Landscaping: In order to adapt the road project within the natural area, it has been agreed to set out a management proposal that involves promoting and simultaneous enjoyment of the biotic characteristics and richness that the park has. For the park's dampening area, a reforestation has been proposed following the technical recommendations mentioned above, with a larger planting density, as shown in Figure 9.10. Additionally the project proposes installing two (2) forest rangers and information huts, where there'll be a parking area, bathrooms and cafeteria as well as restaurant, autochthonous crafts showroom, reconnaissance trail de within the park, horse rentals, guided tour. Furthermore, there will be a watchtower and viewpoint, so as to detect fires specially in the roadway corridor. Each of these forest ranger huts will be located at the park's entrance, i.e. a the north side near the town of Majagual and at the south side near the town of Guaraguao. Likewise, the proposal contemplates that within the institutional cooperation of the Dominican Republic that there be cofinancing from Autopistas del Nordeste toll collections, the administration and security of the area by the Environmental Secretariat". Figure 9.11 illustrates this measure. The horse ride advertised with tourists, may be planned from ranger hut to ranger hut, motivating the tradition of crossing the park in a maze like manner, down natural paths were one is prone to contemplate the spectacular geo-morphological scenery. This, among other things, will become a source of employment for the local community. To that effect, the proposal contemplates taking advantage of the existing paths within the park and building a tower for bird watching and to view the landscape as it is illustrated in Figure 9.12. 234 7 * ~~~ ~ ~~~~~~~~~~~~~I I Additionally, it would be convenient due to its location, placing a viewpoint at the Park's exit point, towards Guaraguao, where there is an impressive view of the scenery for the entire Valley of he Bajo Yuna, as illustrated in Figure 9.13. 9.3.2 Plan for Relocating Families The study and design process for the defining the roadway was performed aimed at minimizing the impact of families and infrastructure. Based on this it was possible to avoid the intersection of communities like Pueblo Nuevo, Sabanalarga, Batey Carmona, Gonzalo, Batey Nuevo Majagual, Guaraguao and the Molinillos crossing. This plan is summarized in Card No. 14. * Objectives: Provide sufficient opportunities to assist relocated families in their efforts to improve their previous standard of living and gain capacity or at least restoring it. Minimizing the impact caused by the displacement of families when their land is affected. * Impacts to be controlled: With this program the purpose is control the following impacts: - Deterioration of living conditions for the affected families. - Loss by displaced families of their social roots. - Alterations in their productive activities due to displacements. * Population to be benefited: The inhabitants of the community within the area of direct influence at a social and economic level that need to be relocated. Currently, there is an inventory of this issue, which is included in the Real Estate Study ("Estudio Predial"). Since population displacement is one the most severe social and economical impacts it is imperative to have ample and deep knowledge of the population's characteristics that would be affected, as well as of the community to which they belong. In total one would need to relocate son 379 families. * Personalized Evaluation: the following characteristics of the persons and families that may be affected by relocation must be kept in mind: * Management Capacity: This aspect refers to the negotiation capacity that the affected person has to look for, and negotiate a new home. 235 This negotiating capacity is associated to educational, social and economic level as well as the skills developed by persons with their previous background. The first two do not necessarily guarantee a high negotiation capacity, since if they have not been faced with similar situations such persons have not developed the skills in these aspects, although they could compensate it by hiring good advisors. On the contrary, a person with low educational and socioeconomic level may have developed an excellent capacity to negotiate if he or she has had experiences in these aspects. * Adaptaton Capacity: the adaptation capacity is determined by cultural patterns, age, and prior history of the persons affected from changes of where they live, the older the person he/she will have a lower adaptation capacity. * Prior history of changes: persons that because of different reasons have changed their residence two or more times, have behavior repertoires that facilitate them to adapt to a new place. Additionally, given the background of dispossessions and defaults given in the Dominican Republic there is mistrust by the people that could be affected. This situation is present mainly in Majagual and Guaraguao. Cultural Patterns: there are ethnic groups that have very strong cultural patterns that generate deep roots with their land, which impedes their adaptation to new places. * Vulnerability and relocation alternatives: combination of the different dimensions that the above variables have within a specific population, determine their degree of vulnerability in view of their displacement, that is to say, the degree to which a person or human group may assimilate and handle impacts caused by forced displacement. * Definition of relocation alternatives: once the above variables have been analyzed as well as their different combination, alternative relocation solutions may be defined. Generally speaking, two major alternatives may be formulated: * Guided Relocation: in general, this alternative is selected when there is high vulnerability in view of the displacement, and the region's conditions, as well as persons who do not allow that with the indemnity received for their goods and advisory they can successfully relocate. 236 I'I Relocation advisory services: Generally applied when the vulnerability of displacement is low. 237 I~~~~~~~~~~~~~~~~~~~ Figure 9.10 Reforestation in dampening strip Los Haiteses Park 238 DEO C* C. C DE~ ~ ~ ~ ~~~~ t OBA PULIA * Ii A . osloi clmin a Y COMUNICACIONES :, ESTUDIO DE IMPACTO AMBIENTAL DISERO CARRETERA SANTO DOMINGO CRUCE RINCON DE MOLINILLOS REPOBLICA DOMINICANA ITI Figure 9.11 Landscape Design and management of Los Haiteses Park 239 I l 4 t~~~~~~~~~~ t , V*t., 4 i t~ ~ ~ !A4 .JOwA , 4M SECRETARIA DE ESTADO - DE OBRAS PUBLICAS 4I (.COnsultorTa colombiana s.a. ESTUDIO DE IMPACTO AMBIENTAL DISEIO CARRETERA SANTO DOMINGO CRUCE RINCON DE MOLINILLOS REPCJBLICA DOMINICANA Figure 9.12 Observation area in the riding zone by ecological trails 240 ' ~l- i}: SECRETARIA DE ESTADO ' " i tt i.Dt DE OBRAS PUBLICAS .ftorS' colombiono sa.a Y COMUNICACIONES ..... ESTUDIO DE IMPACTO AMBIENTAL DISEfNO CARRETERA SANTO DOMINGO CRUCE RINCON DE MOLINILLOS REPOBLICA DOMINICANA l I Figure 9.13 Landscaping viewpoint at the park's exit towards Guaraguao 241 Ilk~~~~~~~~ j~~~~~~~~ A 1 -' ;' I SNlr 'A, SECRETARIA DE ESTADO 7- DE OBRAS PUBLICAS C(" cons,ultorld colombiona s.0. ESTUDIO DE IMPACTO AMBIENTAL DISERNO CARRETERA SANTO DOMINGO CRUCE RINCON DE MOLINILLOS REPOBLICA DOMINICANA Santo Domingo Road - Rinc6n de Molinillos Crossing Family relocation program Card No. 14 Measure: Families relocation. Program's Objectives: Allow a relocation of affected families while Purpose of pretending to generate minimum social conflicts and impoverishment Measure and detriment to the quality of life for such families. Prevention [ Mitigation [ Correction [ Compensation _ Scope: Carrying out relocation and accompaniment of families that are Type of to be displaced. Action Procedure X Civil Work(s) l_________________________________________________________ Workshop Impacts to be mitigated: * Detriment in life conditions for the affected families. * Loss of social roots of the displaced families. * Alteration in productive activities due to displacement. Area Coverage: At the specific sites where they are required. Term to execute the work: Before executing the civil works in each lot. Accountable person Coordinating and Agreeing with: Contractor Inspection Secretary Public Works Secretariat of State of Civil - SEOPC, communities, Works concessionaire, Contractor and [ n Fv civil works Inspector. Description: This task begins with the a census conducted in the Land Properly Study ("Estudio Predial"); then, personalized evaluation is carried out on: their negotiation capacity, adapting capacity, previous history of changes, cultural pattems and vulnerability analysis and relocation alternatives Afterwards, a relocation alternative is selected (guided or negotiated). Then there are agreement made with the communities on the most viable alternative. Develop the respective relocation projects are made, taking into account the following characteristics: information, acquisition of land, infrastructure provision, transfers, transition support, reincorporating to social and economic life. Resources: Resources from the Civil Works and Communications Secretariat, SEOPC, should be used 242 * Agreeing on solution alternatives: Once the alternatives have been defined, they must be presented to the community for their validation, preliminary agreement and acceptance. There may be a need to establish sub-groups based on the specific characteristics such as the aforementioned and pose specific solutions for each one of the groups. This presentation is important to make it at the community meetings, and then, analyze them with each family or with each social unit so as to determine the degree of acceptance. * g) Projects for relocation alternatives: Each of the proposed relocation alternatives implies different projects. Within those projects that may arise in a guided relocation are the following: - Information: One of the best ways to diminish stress resulting from involuntary displacement is to provide true, clear and timely information to people throughout the process. - Land acquisition: this is one of the contemplated preliminary activities of the project, before construction. - Providing infrastructure: This project refers to the construction of homes and the provision of utilities for the displaced population. The cultural characteristics are very important in designing the homes. - Transfers: The transfer must be scheduled so as to cooperate with displaced persons, support at this time is one of the most critical moments, which will facilitate complying with the civil works timetable. - Support during the transition: this is another of those difficult moments that require both social and economic support, especially in those cases when sources of income have been altered and the communities must restart again. - Social and economic reinstatement: Support and guide the social and economic reinstatement of the displaced population. * Goals: amongst the different goals sought by this program are the following: Opportunities to assist the relocated people in their efforts to improve their former standards of living, and gain capacity, or at least, restoring it. The displaced persons must: be compensated for their losses and their relocation expenses, provide 243 opportunities to share the benefits generated from the project, and assist them in their transfer to the new relocation site and during the transition period. The relocation program pursues to encompass all people, as per their own right to inhabit and usufruct the territory, for all persons, family groups or cultural units, whose involuntary displacement obliges them to abandon their work place, their home or both, regardless of the type of tenancy they might have had over the property affected. The relocation program must respect, recognize and gather the very the typical styles of the affected communities, their ideological and cultural patters, and their adaptability strategies to life. The relocation program shall reestablish the social and cultural characteristics of the affected communities, improving their life conditions. Impacts from such relocations must be assessed in respect of the receiving communities of displaced populations and on the physicobiotic environment, and designing mitigation and compensatory measures for their management, fostering integration of both communities. * Responsible: The design, execution and periodic evaluation of the relocation program shall be SEOPC'S responsibility. * Execution timetable: During the execution of the programmed civil works, the general relocation program timetable must be included in the civil works general timetable, so as to avoid problems for lack of coordination, which may generate delays in finishing the works, and having to face very serious problems and cost overruns. * Budget: the costs for this program shall be assumed by SEOPC. 9.4 COSTS AND TIMETABLE 9.4.1 Costs Analysis for the Environmental Management Plan To conduct the Environmental Management Plan the following budget has been estimated: 244 * Hiring an environmental resident: hired by the concessionaire, to oversee compliance of the Environmental Management Plan. The estimated cost is RD$ 25,000, during 24 months, for a total cost of RD$ 600,000 * Managing work camps: it includes construction of the elements detailed in the Environmental Management Plan, such as perimeter ditch, sediments trap, grease trap, dikes, septic well and managing solid and liquid waste, its estimated cost is RD$ 80,000. These costs are part of the contractors camps management. * Managing machinery and equipment: The measures contemplated in this item are included in the cost for machinery and equipment of the civil works and are the Contractor's responsibility. * Managing asphalt plants: The environmental measures for the asphalt plant include setting up a chimney with an adequate height for the plant and equipping it with filters or electrostatic precipitators. Since it has been determined to establish new asphalt plants, which in their design have environmental protection measures, it is considered that the costs are already included in the set up of such plants. These costs will be in charge of the contractor. * Managing air quality: heating of the asphalt bonding must be carried out with gas burners and never with firewood. The cost of this equipment is part of the machinery and equipment cost of thee construction firms. * Managing disposal sites: Management of solid waste is included in the contractor's costs. * Clearing the roadway corridor: It implies vegetation removal and clearing the land. This cost is estimated depending on the type of vegetation as follows: * Clearing high forest areas: RD$ 10,000/ha, per 34 ha, for a total cost of RD$ 3,740,000. * Clearing medium forest areas: RD$ 74,000/ha, per 6 ha, for a total cost of RD$ 444,000 * Clearing low forest areas: RD$ 37,000/ha, per 30 ha, for a total cost of RD$ 1,110,000. 245 Managing the upper layer of the soil for revegetation, its storage and subsequent use is estimated on an overall value of RD$ 400,000. These costs are included in the civil works contract. * Revegetation: revegetation costs are as follows: * Grass planting on taluses with a 1:4 slope, including supports for securing onto the rock, RD$ 200/ in2. With 53 ha. Total RD$ 10,600,000. This cost shall be assumed by the civil works contractor. * Grass planting on taluses with a 1:2 slope, including wooden crosspieces of forest cuttings used as initial containment o the improved soil, RD$ 120/ m2. Con 31 ha, total, 37,200,000 This cost shall be assumed by the civil works contractor. * Planting hedges, cost per tree planted, RD$ 140. Includes the plantule of 0,5 to 1,0 m, presented in nursery bags, of 40 x 20 cm, for 15,000 trees, for a total of RD$ 2,100,000, in an area of 30 ha. This cost shall be assumed by SEOPC. * Reforestation, bank vegetation and dampening strip Los Haitises, cost per tree planted, RD$ 140. Includes plantule of 0,5 a 1,0 m, presented in nursery bags, of 40 x 20 cm with a planting of 208,000 trees, for a total cost of RD$ 29,120,000. This cost shall be assumed by SEOPC. The areas to be planted are: 450 ha of reforestation and protecting river banks and 266 Ha in the dampening corridor for Los Haitises National Park. * Protecting fauna: The protection measures for wildlife do not imply contractor's disbursements and the supervision in applying those measures are part of the environmental resident's duties. Recovering the paleontological patrimony is estimated in an sum of RD$ 40,000 for the sector identified. Other areas for recovery may arise. The value such recoveries shall be assumed by SEOPC. * Information and community participation program: It includes participation of the environmental resident and a professional in the social area who assist in the Workshops. Additionally, the renting of a hall with snacks and drinks. 246 5 workshops along the roadway are required, with a cost of RD$ 20,000 per workshop, for a total cost of RD$ 100,000. The cost of these workshops shall be assumed by SEOPC. * Environmental education programs for contractors and the community: It includes conducting 2 workshops per working front, for a total cost of 16 workshops, with a value of RD$ 10,000 per workshop, for a total of RD$ 160,000, in charge of the Contractor. * Employment support program for the region: This program presents its costs within the civil works contract. * Program for industrial safety and occupational health: The costs of this program are included within the cost of the civil works. * Archeological recovery program: It is the responsibility of the environmental resident to determine if during cuts there are archeological findings. In case it happens, the SEOPC shall hire the services of an archeologist who shall evaluate the actions to be taken and organize the corresponding archeological recovery. * Managing the passage through the Los Haitises National Park: this management cost is estimated around RD$ 500,000; this includes preparing specific designs according to the conceptual designs submitted in the PMA and shall be assumed by the concessionaire. 9.4.2 Timetable for the environmental management plan The Environmental Management Plan is linked to the development of the civil works and therefore it is linked to the construction of the civil works. Figure 9.14 shows the civil works timetable. 247 Ii Figure 9.14 Environmental management plan timetable 248 ~~~~~~~.. . . ... . . . .... ..~~~~~~~~~~~~~~~~~~~~~~~~M .q Hp__P _ t -F + -- -- C _ - --~~~~~~~~~~~~~~~~~~P i -Q --mB _~~~~~~ - - - : - O _~~~~~~~~~~~~po Jr =of AP ema or _ _ WU _~~~~~~~~~~~~~~~l I_ pwi~~~~~~emw .RM ^PEdR aam 9 INTERINSTITUCIONAL COORDINACI6N AND PARTICIPATION OF THE PARTIES In order to get to know the opinion of the population of the area of direct socioeconomic influence of the road, a survey was conducted that included around 300 families located along the road corridor. In addition to their opinion, primary information is gathered in Appendix J. In general terms, the idea that the community has about the road is very positive. Only 0,3% of the people interviewed answered that they consider the road to be bad for the community. This shows the high acceptance of the project within the population directly involved. 249 10 MONITORING AND FOLLOW UP ENVIRONMENTAL PLAN The Monitoring and Follow up Plan is focused towards verifying the compliance of the mitigation and environmental management measures detailed in this study. The following mechanisms have been designed for such purpose: 10.1 ENVIRONMENTAL SUPERVISION The environmental supervision shall be performed simultaneously with the supervision of the civil works, in such a way that all environmental protection measures are included and developed in a satisfactory manner. So that these measures may be carried out, it is fundamental that they are included in the invitation to bid and subsequently in the construction contracts. The supervision shall keep a monitoring logbook in which it will be recorded the development of environmental protection activities as well as impact problems and conflicts with the communities in the area of influence, detailing the dates of the occurrences and the manner in which they were solved; and if the measures taken were effective in correcting problems or were satisfactory for the communities and/or the local authorities. The environmental supervision shall submit quarterly reports to the SEOPC, which in turn will inform to the Environmental Secretariat of State ("Secretaria de Estado de Medio Ambiente") on eventualities of environmental nature that could arise along the roadway. The reports shall state the progress made during the period analyzed, making a comparison with the timetables established, so as to permit an analysis of the causes that may resulted in delays in implementing the environmental mitigation measures established. The reports shall be succinct, in order to allow a quick evaluation of the progress or delay status regarding the environmental measures. The environmental supervisory office shall be the responsibility for overseeing that the measures, the environmental management plan, as well as those activities related with shops and fuel storage, machinery and equipment are being complied with, verify environmental licenses of grinding plants and concrete and asphalt plants, loan 250 areas, use of explosives, protection of bodies of water river beds, and flora and fauna protection. The environmental supervision will additionally oversee preservation of the cultural patrimony within the roadway corridor, verifying that in the event there are archeological or any other type of findings not previously identified, the corresponding evaluation is made as well as the archaeological recovery, when this measure is adequate. 10.2 MONITORING WATER QUALITY * Objectives: Determining the effects on water quality that may arise as a consequence of or due to the construction of the roadway and the presence of camps and machinery. * Periodicity: A monitoring of water quality must be carried out at least three times during the construction phase. * Streams to be sampled: The following water streams must be sampled, depending on the stretch where the work is being carried out, upstream and downstream below the affected areas: Listing of water bodies to be checked: - Cach6n Stream. - Marucho Channel. - Yabacao River. - Lim6n Stream. - Nuevo Channel. - Socoa River - Guaraguao River. - Yuna River. - Dren Mayor; irrigation channel in the Aglypo Project. - Dren Cascarilla, irrigation channel in the Aglypo Project. - Boyd River. - Yavi Stream. Additionally if it is warranted, other water currents that are near the area of influence for the machinery yard. 251 * Parameters to be sampled: In determining the water quality the following parameters are recommended to monitor: -pH. - Temperature - Electric Conductivity. - Dissolved Oxygen. - DBO5 - Greases and oils - Dissolved Solids - Suspended Solids. - Total Solids. - Total Coliforms. - Fecal Coliforms. - Aquatic macro-invertebrates so as to determine the biotic quality of water. For this last parameter it is recommended to use the same methodology used in this study, is order to make comparisons. 10.3 MONITORING AIR QUALITY * Objectives: Determining the effects on air quality that may arise as a consequence of the construction * Periodicity: At least three times during the construction phase for particles in suspension and gas concentration, and on a monthly basis for noise levels in the working fronts. * Parameters and sampling sites: air quality must be monitored in terms of the following parameters: - Particles in suspension: Three times during the development of the work, especially in populated sites. - Concentration of gases: Analysis of CO, NOx and Sox level, three times during the development of the work, especially in populated sites. - Noise levels: conduct a monthly record of noise levels emitted to the air, in order to verify that they are within the limits allowed by the air quality standards established in the environmental regulations of the Environmental and Natural 252 Resources Secretariat of State ("Secretaria de Estado de Medio Ambiente y Recursos Naturales"). 253 10.4 FAMILIES RECOLACTION ACCOMPANIMENT The Community Action Department (Departamento de Acci6n Comunitaria") of SEOPC will provide all the support and the necessary orientation to each participating families in the relocation program, in such a way that their social and spatial reinsertion allows improving living conditions in respect of the prior situation. The guarantee of the successful resettlement is attained with the satisfactory reply by SEOPC, regarding the expectations and needs of the population involved. Monitoring of this process requires immediate evaluation after resettlement so as to verify the achievement of objectives and correcting any unforeseen error. 10.5 COSTS OF ENVIRONMENTAL MONITORING AND FOLLOW UP 10.5.1 Environmental Supervision Costs Environmental supervision will cost RD$ 132,000, distributed as follows: * Environmental Professional: A full time environmental professional shall be responsible for the environment corresponding to every two stretches of construction. His cost has been estimated at RD$ 25,000, for 24 months, for a total cost of RD$ 600,000 * Vehicle Rental: Since this professional will have to be constantly move throughout the work, he/she requires independence and therefore, a permanent vehicle for each two stretches of construction. Monthly rental cost of these vehicles will be RD$ 30,000, for a total of RD$ 720,000. * Publishing Reports: costs for publishing reports are included in the general costs for publishing reports of the supervisory office. 10.5.2 Water Quality Monitoring Costs: It is required to analyze 12 currents of water, three times during the construction stage of the work, with an estimated cost of RD$ 4,000 per sample for a total of RD$ 144,000. 254 10.5.3 Air Quality Monitoring Monitoring of particles shall be performed three times during the work at eight sites of the roadway. The cost per sample will be RD$ 1,000, for a total of RD$ 24,000. Monitoring of gases requires the same amount of samples considered in the above paragraph, with a cost of RD$ 1,500 per sample, for a total of RD$ 36,000. A monthly record of noise levels is required at the different construction sites, therefore, it is required to purchase a sonometer to be used by the environmental professional in charge of supervision, every time it may be required. This equipment has an estimated cost of RD$ 14,000. Therefore, total cost on ar quality monitoring will be RD $ 74,000. 255 11. CONTINGENCY PLAN This contingency plan contains a series of measures to be implemented in order to provide a prompt and adequate management of emergencies or contingencies, which may occur during the construction and operation phase of the road. The contingency plan contains measures focussed on planning actions and responsibilities required to be implemented in case an event occurs which might eventually generate inconveniences that may be foreseen and may cause damages, mainly to the integrity or deterioration to the quality of life persons. It may also be possible that such an event may produce negative effects on the environment. 11.1 ANALYSIS OF ENVIRONMENTAL RISKS The following possible risks have been considered to generate environmental consequences or risks for human integrity during the construction phase: * Failures in machine operation, which may, eventually, cause accidents resulting in injuries and human losses. * Failures related to external factors of the Work with a certain degree of irresponsibility or lack of prudence by workers. * Fires or explosions generated by isolated events, related to handling flammable substances which may be in contact with explosive gases, specifically with the household gas service infrastructure. * Short circuits caused by interference with the electric power infrastructure of the area, specifically with transmission lines, especially related to minor networks. * Suspension of service due to damages to telephone lines and telephone wiring. During the road's operation phase, the environmental risks are the following: * Car accidents leading to injuries or human losses. * Car accidents with spillages of environmentally dangerous substances which may affect the quality of waters, soils, and that could produce harmful effects to flora and fauna. 256 11.2 VULNERABILITY ANALYSIS This corresponds to actions, events or areas which may be subject to contingencies, both during the construction phase and the operation phase. Due to the project characteristics, and its area of influence, the following factors may be subject to contingency plans during the aqueduct and the sewer system construction works. * Critical excavation areas. * High rate of accidents areas: Transportation roadways between excavation sites and waste disposal locations. * Work fronts, increasing accident potential incidents for workers. * Interference with public utilities. * Interference with the Aglypo Project irrigation system. In the last two points, it is worth mentioning the following interference, which were detailed on Table 3.4 * KO+000: Main aqueduct piping going towards Santo Domingo. * K8+160: Intersection with intermediate tension electric power transmission line, of 34.5 Kv * K36+275: Intersection with low voltage electric power transmission line, of 13.5 Kv. * K36+275: Intersection with medium voltage electric power transmission line, of 34.5 kV. * Intersection with medium voltage electric power transmission line, of 34.5 Kv. * K89+500 - K89+900: Intersection, with medium voltage electric power transmission line, of 34.5 kV. * K85 to K90: Parallel to the current cart road, there is a 12" aqueduct piping. Additionally, interference with telephone lines. * K90 - K 96: There are several water inlets for the irrigation system. 11.3 INSTITUTIONS RESPONSIBLE FOR THE CONTINGENCY PLAN During the construction stage they are the following: At project level: It should be considered within the flow chart of the organizations related to the execution of the works, representatives who make up the prevention 257 and safety committee, as well as the attention service committee in case of contingencies. The committee will be represented by: * The concessionaire. * The contractor. * The civil works supervision office. * A representative from the locatilty affected. At the institutional level: at this level it is important to have the participation of the following entities: * The Municipal Town Councils. * The Dominican institute of social security. * The National Police. * The Civil Fire Department. * Civil Defense. During the operation stage only the contractor and the work inspection office will disappear. 11.4 ACTION PLAN It contains the guidelines that will make up the activation and execution mechanisms of the contingency plan, during the construction and operation stages. It should contain the following: * Decision-making: It establishes the threshold that will activate a contingency plan. In case of interference with other public services, please call the telephone numbers listed on Table 6.2. In case of accident with people injured, transfer them to the nearest health care centers listed below. Inform the Work Inspection Office, the concessionaire, and inform SEOPC, or directly or through them. * Communication Mechanisms: Define efficient mechanisms which allow coordination between the agents involved in a possible contingency, for which it is required to organize meetings between the committees or their representatives, before starting the project's works. 258 11.5 CONTINGENCIES INVOLVING PUBLIC UTILITIES In case contingencies arise involving public utilities, the corresponding responses should be coordinated with the respective institutions, sine they have their own action and response mechanisms and shall attend emergencies more appropriately. Table 11.1 List of important institutions for the Contingency Plan Institution Address Telephone -Provincia de Monte Plata Ayuntamiento Municipal. Arzobispo Merifno # 14 551-6333 / 6232 / 6327 Corporaci6n Dominicana de Electricidad. Altagracia # 34 551-6275 Fire Department. Restauraci6n # 75 551-6263 Direcci6n Provincial. Arzobispo Merifio # 51 551-6654 Gobernaci6n Provincial. Arzobispo Merihlo 551-6733 INAPA L. A. Rojas #22 551-6398 Instituto Dom. De Seguros Sociales. S. Antonio # 10 551-6866 Oficina Servicio en Monte Plata. Mella # 79 551-6470 Policia Nacional (Oficina Comandante 5ta.) M. A. Monclus # 34 551-6405 Sindicatura Municipal Arzobispo. Merifho # 62 551-6333 Sub-Centro de Salud de Monte Plata Luper6n # 1 551-6771 Asociaci6n de Ganaderos de Monte Plata Sanchez # 32 551-6216 / 6488 Province of Maria Trinidad Sanchez Bomberos Civiles Duarte 584-2208 Colecturia de Rentas Internas Col6n 584-2389 Comandancia Policia nacional Mella 584-2263 Corporaci6n Dominicana de Electricidad Enriquillo # 8 584-2257 /3858 / 3857 Direcci6n Provincial de Salud Aut. M. T. Sanchez # 5 584-4561 Ejercito Nacional CI Luper6n 584-4423 Estaci6n de Telecomunicaciones E. Publicos 585-2285 Foresta Edif. Oficinas Piblicas 584-3586 Fortaleza E. M. Olegario Tenares Cl General Luper6n 584-2320 Gobernaci6n Provincial E. Publico 584-2657 Hospital Dr. Antonio Yapor Aut. Nagua 584-2296 Hospital Seguros Sociales CI Mella 584-2300 Instituto Agrario Dominicano Aut. San Fco. de Macoris 584-2515 Instituto Nacional de agua potable y El Conde # 22 584-2922 / 699 alcantarillado Maternidad Maria Trinidad Sinchez CI Progreso # 122 584-2595 Policia Nacional Cuartel General Mella 584-2260 / 2307 Secretaria de Estado de Educaci6n y Cultura Esc. San Jose Villa 584-3637 / 3276 / 4024 Secretaria de Estado de Obras Publicas Col6n 584-3030 259 Table 11.1 (continued) Province of Samana Policia Nacional. Fco. Del Rosario Sanchez 538-2220 / 2855 Ayuntamiento Municipal. Teodoro Chasereaux 538-2325 / 2308 Comandancia de Puerto. R. Pefiaranda 538-2214 Corporaci6n Dominicana de Electricidad. M. T. Sanchez 538-2344 Correo y Telecomunicaciones 7 de febrero 538-2231 Direcci6n Provincial de Salud V. Salma 538-2398 Direcci6n T&cnica Forestal M. T. Sanchez # 1 538-2672 Gobernaci6n Provincial Mella # 1 538-2210 Hospital Leopoldo Pou M. T. Sanchez # 15 538-2366 / 2746 260 12. BIBLIOGRAFIA Alpers, A. 1961. Dolphins: The Myth and the Mammal. Houghton Mifflin Co., Boston. Aristizibal H., 2002. Los hemipteros de la Pelicula Superficial del Agua en Colombia. Parte 1, Familia Gerridae. Academia Colombiana de Ciencias Exactas, Fisicas y Naturales. Ed. Guadalupe, Bogota Aristizabal y Moreno, 1987. Manual Ambiental Para Disefno y Construcci6n de Vias SEOPC, Santo Domingo. Barker, E., P. Ewins & J. Miller, 1994. Birds breeding in or beneath Osprey nests. Wilson Bulletin 106:743-750. Brooke, A. P., 1994. Diet of the Fishing Bat, Noctilio leporinus (Chiroptera, Noctilionidae). Journal of Mammalogy 75:(1):212-218. Brooke, A. P., 1997. Organization and Foraging Behavior of the Fishing Bat, Noctilio leporinus (Chiroptera: Noctilionidae). Ethology 103:(5):421-436 DNP, 1989. Los parques nacionales de la Repuiblica Dominicana. Direcci6n Nacional de Parques, Santo Domingo, RD. DNP, 1991. Plan de uso y gesti6n del Parque Nacional de Los Haitises y areas perifericas. Documento de Sintesis. DNP-AECI-Junta de Andalucia, Editora Corripio. Garcia, R., 1994. Diversidad, endemismo y especies amenazadas en la flora de la Isla Espafiola. En: Situaci6n ambiental y situaci6n de la Biodiversidad en la Republica Dominicana. Agenda Ambiental Dominicana, No.1. Santo Domingo. Hamas, M. J., 1994. Belted Kingfisher (Ceryle alcyon). In The Birds of North America, No. 84 (A. Poole and F. Gill, Eds.). Philadelphia: The Academy of Natural Sciences; Washington, D.C.: The American Ornithologists' Union. Harrison, R. & M. M. Brayden, 1988. Whales, Dolphins and Porpoises. Intercontinental Publishing Corporation, New York. 261 Instituto Nacional DE Recursos Hidriulicos, INDRHI, 1993. Atlas de Lluvias Maximas en la RepAblica Dominicana, INDRHI, Santo Domingo. Integral, 2002. Estudios de demanda de Trafico del Proyecto Vial Santo Domingo, Cruce del Rinc6n de Los Molinillos. Versi6n final., Medellin, Colombia. Kleiman, D. G., J. F. Eisenberg, & E. Maliniak, 1979. Reproductive parameters and productivity of caviomorph rodents. pp. 173-83. In Eisenberg, 1979. Vertebrate ecology in the northern neotropics. Smithson. Inst. Press, Washington, D. C. Krakauer, T., 1968. The Ecology of the Neotropical Toad, Bufo marinus in southern Florida. Herpetologica 24(3):214-221. Kunz, T., H. Fujita, M. S., Brooke, A. P., & McCracken, G. F., 1994. Convergence in Tent Architecture and Tent-Making Behavior Among Paleotropical and Neotropical Bats. Journal of Mammalian Evolution. 2: 57-77. Margalef, R., 1978. Limnologia. Editorial Omega, Barcelona. Espania. Merrit, R. W. & K. W. Cummins, 1996. An Introduction to the Aquatic Insects of North America. Kendall/Hunt Publishing Company. Iowa, USA. Moller, A., 1993. Sexual selection in the Barn Swallow Hirundo rustica: female tail ornaments. Evolution 47:417-432. Museo del Hombre Dominicano. Boletines Nos. 17, 18, 19 y 25. Niesser, N., 1970. Gerridae of Suriname and the Amazon, with additional records of other Neotropical Species. Studies of the Fauna of Suriname and Other Guyanas 47:94-138. Niflo, R. & P. Ordofiez, 1984. Determinaci6n de Parametros para Control de Contaminaci6n por Emisiones Vehiculares en la Ciudad de Cali. Universidad del Valle, Cali, Colombia. Mimeografiado. Polhemus, D., 1977. Systematics of the Genus Rhagovelia Mayr (Heteroptera Veliidae) in the Western Hemisphere (Exclusive of the angustipes Complex). Thomas Say Publications in Entomology. Maryland, USA. 262 Stockton, A., 1978. Aves de la Republica Dominicana. Primera Edici6n. Publicado por: Museo de Historia Natural, Santo Domingo, Republica Dominicana. Stockton A., 1981. Guia del Campo para las Aves de la Republica Dominicana. Ed. Horizontes de America, Santo Domingo, Republica Dominicana. Tolentino, L., & M. Pefia, 1998. Inventario de la vegetaci6n y uso de la tierra en la Republica Dominicana. Moscosoa 10: 179-203. Tuffery, G. & J. Verneaux, 1979. Incidencias biol6gicas de la poluci6n de las aguas corrientes. Reveladores biol6gicos de la poluci6n. En: La Contaminaci6n de las aguas continentales. Incidencias sobre las biocenosis acuaticas. P. Pesson, Editor. Ediciones Mundi-Prensa, Madrid. UNEP-WCMC, 1997. United Nations List of Protected Areas. Veloz, M. M., 1972. Arqueologia Prehist6rica de Santo Domingo. Fundaci6n de Credito Educativo de la Repiublica Dominicana. McGraw-Hill Far Eastern Publishers (S) LTD. Singapore Wege, D.C., & A. J. Long, 1995. Key areas for threatened birds in the Neotropics. Birdlife international, Smithsonian, Washington, D. C. Weitzenfield, H.,1988. Las Otras Fuentes Contaminantes del Aire (Agricultura, Mineria, Pavimentos, etc), EN Evaluaci6n Rapida de Fuentes de Contaminaci6n Ambiental. Universidad Javeriana, Ministerio de Salud. OPS. Seminario-Taller. Cartagena, Colombia. Young, D. & M. W. Allard, 1997. Conservation genetics of the Plain Pigeon (Columba inornata) in Puerto Rico and the Dominican Republic. Molecular Ecology. 6:877-879 263 ANNEX Annex A. List the culverts Annex B. Interferences of the road with the existing infrastructure. Annex C. List of Affectation to properties Annex D. Inventory of caverns Annex E. Photos. Annex F. List of Vegetal species of the region. Annex G. List of species of birds of the region. Annex H. Alternative from crossing to the forests of km 42 to km 48.1 Annex I. Fauna. Annex J. Socioeconomic Survey Summary. Annex K. Maps. Annex L. Source of materials2 'Not presented to MIGA 2Not presented to MIGA ANNEX A List of Culverts Obras de Drenaje Menores LOTE I ABSCISA OBRAS OBSERVACIONES Alcantarilla de K4+930.50 Tubo 0.90m Alcantarilla de K5+262 Tubo 0.90m Alcantarilla de K5+853.5 Tubo 0.90m Alcantarilla de K6+056 Tubo 0.90m Alcantarilla de K7+690 Tubo 0.90m Alcantarilla de K8+082 Caj6n 1 x 1 Alcantarilla de K8+290 Caj6n lxI Alcantarilla de K8+900 Tubo 0.90m Alcantarilla de K9+083 Tubo 0.90m Alcantarilla de K9+675 Tubo 0.90m Alcantarilla de K9+853 Tubo 1.20m LOTE 2 ABSCISA OBRAS OBSERVACIONES Alcantarilla de tubo de control de entrada con muro de 10+240 Box 1.5 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Cajon de control de entrada con muro de 2 Box de 3.5 x cabecera normal al eje del conducto, enchufe dirigido hacia 10+645 1.5 aguas arriba. Drenaje propuesto.EI volumen de agua alcanza una profundidad de 0.68 m en el centro de la secci6n medidos desde el centro del Alcantarilla de Cajon de control de entrada con muro de 12+440 Box 3.0 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Drenaje propuesto. Alcantarilla de Cajon de control de entrada con muro de 13+922 Box 2.5 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Drenaje propuesto. Altura maxima de aguas para 50 afios de TR es de 1.58 m en 14+918 Puente en Cafio el centro de la secci6n, desde el lecho del rio y para 25ahos Marucho corresponde a 1.17 m. El nivelde agua alcanza un anchode 55.48m para 25 afios y de 105.83 m para 50 afios. 14+960 Box 2.5 x 2 15+015 Box 2.5 x 2 15+076 Box 2.5 x 2 15+173 Box2.5x2 15+245 Box 2.5 x 2 Page 1 of 15 ANNEX A List of Culverts Obras de Drenaje Menores LOTE 2 ABSCISA OBRAS OBSERVACIONES Altura maxima de aguas para 50 afios de TR es de 4.94 m en Puente sobre el centro de la secci6n, desde el lecho del rio y para 25afios 15+268 Yabacao corresponde a 4.47 m. El volumen de agua alcanza a ocupar un ancho de 60.83 m. Zona de humedales que reciben los caudales excedente ala 2 Box de 3.5 x capacidad de conducci6n de Arroyo Nuevo y Rio Yabacao. 15+469 2 Alcantarilla de Cajon de control de entrada con muro de 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Altura maxima de aguas para 50 afios de TR es de 1.58 m en 15+850 Puente en Cav o el centro de la secci6n, desde el lecho del rio. El nivel de agua alcanza un ancho de 116. m para 50 afios. Alcantarilla de Cajon de control de entrada con muro de 15+897 Box 2 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Drenaje propuesto. Zona de humedales que reciben los caudales excedente ala 16+435 Box 4 x 1.5 capacidad de conducci6n de Arroyo Nuevo. Alcantarilla de Cajon de control de entrada con muro de cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de tubo de control de entrada con muro de 17+900 Box 2 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. 18+733 Box 1.5 x 1.5 Obras para flujo dentro de la Laguna Existente Alcantarilla de tubo de control de entrada con muro de 19+385 Box 1.5 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. 19+500 Box 1.5 x 1.5 Obras para flujo dentro de la Laguna Existente 19+822 Box 1.5 x 1.5 Obras para flujo dentro de la Laguna Existente 20+104 Box 1.5 x 1.5 Obras para flujo dentro de la Laguna Existente Alcantarilla deCajon de control de entrada con muro de 20+739 Box 1.5 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas ariba. Drenaje propuesto. Alcantarilla de Cajon de control de entrada con muro de 21+292 Box 2.5 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Drenaje propuesto. Page 2 of 15 ANNEX A List of Culverts Obras de Drenaje Menores LOTE 2 ABSCISA OBRAS OBSERVACIONES Alcantarilla de Cajon de control de entrada con muro de 21+984 Box 1.5 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Drenaje propuesto. 22+659 Box 2.5 x 1.5 Obras para flujo dentro de la Laguna Existente 22+704 Box 2.5 x 1.5 Obras para flujo dentro de la Laguna Existente 22+749 Box 2.5 x 1.5 Obras para flujo dentro de la Laguna Existente 22+793 Box 2.5 x 1.5 Obras para flujo dentro de la Laguna Existente Alcantarilla de Cajon de control de entrada con muro de 23+888 Box 2 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Drenaje propuesto. Alcantarilla de Cajon de control de entrada con muro de 24+493 Box 4 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Drenaje propuesto. 24+553 Box 2.5 x 1.5 Obras para flujo dentro de la Laguna Existente Alcantarilla de Cajon de control de entrada con muro de 25+520 Box 2.0 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Drenaje propuesto. Alcantarilla de Cajon de control de entrada con muro de 26+480 Box 2.5 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Drenaje propuesto. 26+788 Alcantarilla de Obras para pasar canal de riego Alcantarilla de Cajon de control de entrada con muro de 26+993 Box 2.0 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Drenaje propuesto. Alcantarilla de Cajon de control de entrada con muro de 27+350 Box 1.5 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Drenaje propuesto. Alcantarilla de Cajon de control de entrada con muro de 28+112 Box 2.0 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Drenaje propuesto. Alcantarilla de Cajon de control de entrada con muro de 28+218 Box 1.5 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Drenaje propuesto. Alcantarilla de Cajon de control de entrada con muro de 2 Box de 4.0 x~ cabecera normal al eje del conducto, enchufe dirigido hacia 28+722 2.0 aguas arriba. Drenaje propuesto.EI agua alcanza unaprofundidad de 1.69 m en elcentro de la seccion medidos desde el lecho del cauce. Page 3 of 15 ANNEX A List of Culverts Obras de Drenaje Menores LOTE 3 ABSCISA OBRAS OBSERVACIONES 2 Alcantarilla Alcantarilla de Tubo de control de entrada con muro de 30+287 de 0A90 m cabecera normal al eje del conducto, enchufe dirigido hacia ___ ___ ___ _ ___ ____. aguas arriba. 2 Alcantarilla Alcantarilla de Tubo de control de entrada con muro de 30+388 de 0A90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 30+660 Alcantarilla de cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Tubo de control de entrada con muro de 31+485 2 tubos 1 22m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Tubo de control de entrada con muro de 32+034 2 tubos 1 22m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarillas de Alcantarilla de Tubo de control de entrada con muro de 32+860 2 tubos 1.22m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarillas de Alcantarilla de Tubo de control de entrada con muro de 33+543 2 tubos 1.22m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarillas de Alcantarilla de Tubo de control de entrada con muro de 33+828 2 tubos 0.90m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Caj6n de control de entrada con muro de 34+220 Box de I x I cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Caj6n de control de entrada con muro de 34+395 Box de I x I cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Caj6n de control de entrada con muro de 34+722 Box de 2.5x1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Cruce de Arroyo Hundidero Box de 1.5 x Alcantarilla de Caj6n de control de entrada con muro de 35+180 B .5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 35+420 1.22 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Page 4 of 15 ANNEX A List of Culverts Obras de Drenaje Menores LOTE 3 ABSCISA OBRAS OBSERVACIONES Alcantarilla de Caj6n de control de entrada con muro de 36+828 Box de I x I cabecera normal al eje del conducto, enchufe dirigido hacia ______ _____ ______ _____ aguas arriba. Box de 1.5 x Alcantarilla de Caj6n de control de entrada con muro de 36+980 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Box de 1.5 x Alcantarilla de Caj6n de control de entrada con muro de 37+479 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Caj6n de control de entrada con muro de 37+880 Box de I x I cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Caj6n de control de entrada con muro de 38+407 Box de 1.5 x cabecera normal al eje del conducto, enchufe dirigido hacia 1.5 aguas arriba. Paso para afloramiento natural de agua Cruce Cafiada Mala Box de 4.0 x Alcantarilla de Caj6n de control de entrada con muro de 39+081 2.0 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Cruce de Arroyo Palmilla 39+510 Puente Cruce del Rio Socoa Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 39+640 0.90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 39+810 0.90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alatl dAlcantarilla de Tubo de control de entrada con muro de 40+369 Alcantar1lla de cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarillas de Alcantarilla de Tubo de control de entrada con muro de 41+639 2 tubos 1a22m cabecera normal al eje del conducto, enchufe dirigido hacia ._____ _ aguas arriba. Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 42+080 1A22 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Tubo de control de entrada con muro de 42+300 1.22 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 42+400 0.90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Page 5 of 15 ANNEX A List of Culverts Obras de Drenaje Menores LOTE 3 ABSCISA OBRAS OBSERVACIONES Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 42+678 0.90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 42+750 0.90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. A .anal d Alcantarilla de Tubo de control de entrada con muro de 42+919 Alcantanlla de cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Disipador Box de 1.5 x Alcantarilla de Caj6n de control de entrada con muro de 43+060 1 5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Disipador Alcantarilla de Caj6n de control de entrada con muro de 43+562 Box de 4.0 x cabecera normal al eje del conducto, enchufe dirigido hacia 2.0 aguas arriba. Cruce de ArroyoToro Prieto. Construir Encole/descole Box de 1.5 x Alcantarilla de Caj6n de control de entrada con muro de 43+895 1 5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Disipador Box de 1.0 x Alcantarilla de Caj6n de control de entrada con muro de 44+182 1.0 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Disipador Box de 1.5 x Alcantarilla de Caj6n de control de entrada con muro de 44+300 ox e . x cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Disipador Box de 1.5 x Alcantarilla de Caj6n de control de entrada con muro de 44+518 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Disipador Box de 1.5 x Alcantarilla de Caj6n de control de entrada con muro de 44+917 1 5 cabecera normal al eje del conducto, enchufe dirigido hacia .___________ aguas arriba. Disipador Alcantarilla de Caj6n de control de entrada con muro de 45+327 Box de I x I cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Disipador Alcantarilla de Caj6n de control de entrada con muro de 46+016 Box de I x I cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Disipador Alcantarilla de Caj6n de control de entrada con muro de 46+580 Box de I x I cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Disipador Page 6 of 15 ANNEX A List of Culverts Obras de Drenaje Menores LOTE 3 ABSCISA OBRAS OBSERVACIONES Alcantarilla de Caj6n de control de entrada con muro de 47+055 Box de 1 x 1 cabecera normal al eje de] conducto, enchufe dirigido hacia ausaia. Disipador Alcantarilla de Caj6n de control de entrada con muro de 47+300 Box de 1 x I cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Disipador Alcantarilla de Caj6n de control de entrada con muro de 47+718 Box de I x 1 cabecera normnal a] eje del conducto, enchufe dirigido hacia aguas arriba. Disipador Alcantarilla de Caj6n de control de entrada con muro de 48+222 Box de 1 x I cabecera normal al eje del conducto, enchufe dirigido hacia _____ ____ _ __ ____ ____ aguas arriba. Disipador Alcantarilla de Caj6n de control de entrada con MUro de 48+580 Box de 1 x 1 cabecera normal al eje del conducto, enchufe dirigido hacia ____ ____ __ _ ___ ____ _ ag as a rib . D isipadoT Alcantarilla de Caj6n de control de entrada con muro de 48+675 Box de 1 x 1 cabecera normal al eje del conducto, enchufe dirigido hacia ___________aguas arriba. Disipador Alcantarilla de Caj6n de control de entrada con muro de 49+25 0 Box de I x 1 cabecera normal al eje del conducto, enchufe dirigido hacia _____ ____ _ __ ____ ____ aguas arriba. Disipador Alcantarilla de Caj6n de control de entrada con muro de 49+522 Box de 1 x 1 cabecera normal al eje del conducto, enchufe dirigido hacia __________ I l__ _ _ _ _ aguas arriba. Disipador Alcantarilla de Caj6n de control de entrada con muro de 49+620 Box de 1 x 1 cabecera normal al eje del conducto, enchufe dirigido hacia _____ ____ _ ___ ____ ____ aguas arriba. Disipador ____ ____ ____ ____LO TE 4 ABSCISA OBRAS OBSERVACIONES Alcntaill deAlcantarilla de Tubo de control de entrada con muro de 50+074 0lcntaill decabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alentaill deAlcantarilla de Tubo de control de entrada con muro de 50+350 Alcn9aill decabecera normnal al eje del conducto, enchufe dirigido hacia ____ ____ ___ ____ ____ ___ aguas arriba. Alcntaill deAlcantarilla de Tubo de control de entrada con muro de 50+675 A0cnt0 m l decabecera normal al eje del conducto, enchufe dirigido hacia ____ ____ ___ ____ ___ ____ ag as arib . Demoler obra existente. 50+702 Demoler obra existente. Alcntaili deAlcantarilla de Tubo de control de entrada con muro de 5 1+235 A0cnt0 m l decabecera normnal al eje del conducto, enchufe dirigido hacia ___________ ___________aguas arriba. Demoler obra existente. Page 7 of i5 ANNEX A List of Culverts Obras de Drenaje Menores LOTE 4 ABSCISA OBRAS OBSERVACIONES A .atl d Alcantarilla de Tubo de control de entrada con muro de 51+418 Alcantanlla de cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. 51+466 Demoler obra existente. Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 51+702 0.90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Demoler obra existente. Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 51+826 0l90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Demoler obra existente. 51+990 Demoler obra existente. Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 52+093 0A90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. 52+294 Demoler obra existente. Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 52+439 0A90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. 52+563 Demoler obra existente. Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 52+770 Alcantarilla de cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 53+208 0.90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. 53+251 Demoler obra existente. Alcantarilla de Tubo de control de entrada con muro de 53+517 Alcantanlla de cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 53+812 cantan a e cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Manejo de cunetas.Demoler obra existente. 54+112 Demoler obra existente. Alcantarilla de Tubo de control de entrada con muro de 54+ 128 Alcantarilla de cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 54+841 0.90 m cabecera normal al eje del conducto, enchufe dirigido hacia I aguas arriba. Alcantarilla de Cajon de control de entrada con muro de 55+262 Box 3.0 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Cruce de Arroyo Arroy6n I Page 8 of 15 ANNEX A List of Culverts Obras de Drenaje Menores LOTE 4 ABSCISA OBRAS OBSERVACIONES Alat l d Alcantarilla de Tubo de control de entrada con muro de 56+122 0.90 m d cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Cajon de control de entrada con muro de 56+662 Box 2.0 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Cruce de Arroyo Arroy6n 11 9Alcantarila de Alcantarilla de Tubo de control de entrada con muro de 56+990 0A90 cantan a cabecera normal al eje del conducto, enchufe dirigido hacia .___ ___ ___ ____ _aguas arriba. Alcantarila deAlcantarilla de Tubo de control de entrada con muro de 57+412 0A90 m cabecera normal al eje del conducto, enchufe dirigido hacia .___ ___ ___ ____ _aguas arriba. Alcantarilla de Tubo de control de entrada con muro de 57+622 Alcantarilla de cabecera normal al eje del conducto, enchufe dirigido hacia .____________ _ aguas arriba. Demoler obra existente. 58+097 Demoler obra existente. Alcantarilla de Tubo de control de entrada con muro de 58+759 Alcantarlla 2 cabecera normal al eje del conducto, enchufe dirigido hacia .__ __ __ __ ___aguas arriba. Alcantarill deAlcantarilla de Tubo de control de entrada con muro de 59+087 0A90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Manejo de cunetas. Demoler obra existente. Alatl d Alcantarilla de Tubo de control de entrada con muro de 59+930 0.90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Manejo de cunetas Alcantarilla de Tubo de control de entrada con muro de 60+618 Puente cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Paso para afloramiento natural de agua Alcantarilla de Cajon de control de entrada con muro de 60+968 2 Box 3.0 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Cruce Laguna 61+457 Demoler obra existente. Alcantarilla de Tubo de control de entrada con muro de 61+467 de 1.22 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Tubo de control de entrada con muro de 62+061 0.90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Page 9 of 15 ANNEX A List of Culverts Obras de Drenaje Menores LOTE 4 ABSCISA OBRAS OBSERVACIONES Alcantarilla de Tubo de control de entrada con muro de 62+613 Alc0tarilla de cabecera normal al eje del conducto, enchufe dirigido hacia _ aguas arriba. Manejo de cunetas Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 64+429 0 l90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. 6 3 Alcantarila 2 Alcantarilla de Tubo de control de entrada con muro de 65+513 Alcaade 1.22 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla 2 Alcantarilla de Tubo de control de entrada con muro de 66+022 de 1.22 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. 6 4 Alcantarila 3 Alcantarilla de Tubo de control de entrada con muro de 66+884 de 1.22 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Tubo de control de entrada con muro de 67+308 lcantanlla 2 cabecera nonmal al eje del conducto, enchufe dirigido hacia e 1.22m aguas arriba. Alcantarill de Alcantarilla de Tubo de control de entrada con muro de 67+786 ca90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Cruce de Arroyo Piraco 1. Alcantarilla de Cajon de control 68+271 Box 2 x 1.5 de entrada con muro de cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Cruce caflo. Alcantarilla de Cajon de control de entrada con 68+540 Box 2 x 1.5 muro de cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Cruce quebrada. Alcantarilla de Cajon de control de entrada 68+441 Box 2 x 1.5 con muro de cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Tubo de control de entrada con muro de 68+789 A a90 m cabecera normal al eje del conducto, enchufe dirigido hacia _ aguas arriba. Alcantarilla de Tubo de control de entrada con muro de 69+ 100 A t90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Manejo de cunetas Cruce de Arroyo Piraco Il. Alcantarilla deCajon de control 69+372 Box 3.5 x 1.5 de entrada con muro de cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Drenaje propuesto. Page 10 of 15 ANNEX A List of Culverts Obras de Drenaje Menores LOTE 4 ABSCISA OBRAS OBSERVACIONES Alanal 2 Alcantarilla de Tubo de control de entrada con muro de 70+042 de 1.22 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla 2 Alcantarilla de Tubo de control de entrada con muro de 70+800 de 1 22 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Box de 2.0 x Alcantarilla de Cajon de control de entrada con muro de 71+205 ox e 2. cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Drenaje propuesto. Alcantarilla de Cajon de control de entrada con muro de 72+040 Box de 2.0 x cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Drenaje propuesto. 73 1 Box de 2.0 x Alcantarilla de Cajon de control de entrada con muro de 73+891 1 5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Drenaje propuesto. Alcantarilla de Tubo de control de entrada con muro de 74+210 0.90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas amba. Manejo de cunetas. Alcantarilla de Tubo de control de entrada con muro de 75+317 0.90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 76+940 0.90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Alcantarilla de Tubo de control de entrada con muro de 77+440 0.90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantaril1a de Alcantarilla de Tubo de control de entrada con muro de 78+562 can arila e cabecera normal al eje del conducto, enchufe dirigido hacia . ~~~aguas arriba. Alcantarilla de Tubo de control de entrada con muro de 79+220 0.90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Tubo de control de entrada con muro de 79+720 0.90 m cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Alcantarilla de Tubo de control de entrada con muro de 80+892 0.90 m cabecera normal al eje del conducto, enchufe dirigido hacia I_aguas arriba. Page 11 of 15 ANNEX A List of Culverts Obras de Drenaje Menores LOTE 4 ABSCISA OBRAS OBSERVACIONES Alana. d Alcantarilla de Tubo de control de entrada con muro de 83+410 Alcantanlla de cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Box de 2.0 x Alcantarilla de Cajon de control de entrada con muro de 83+842 ox de 2 cabecera normal a] eje del conducto, enchufe dirigido hacia aguas arriba. Caniada existente. LOTE 5 ABSCISA OBRAS OBSERVACIONES 84+371.97 Puente El Puente pasara sobre el rio Guaraguao 84+343 Box 4 x 2.5 Canal 84+506 Box 2.5 x 1.5 Obra de Drenaje de las areas inundables 84+537 Box 1 x 1 Paso del Lateral del Canal Guaraguao Alcantarilla Alcantarilla de tubo de control de entrada con muro de 84+744 de 90 cabecera normnal al eje del conducto, enchufe dirigido hacia ____ ____ ___ ____ ____ ___ aguas arriba. 85+079 Box 2.5 x 1.5 Drenes existentes que se utilizaran para drenar los caudales de exceso de la inundaci6n provocada por el rio Guaraguao 85+290 Box 2.5 x 1.5 Drenes existentes que se utilizaran para drenar los caudales de exceso de la inundaci6n provocada por el rio Guaraguao 85+502 Box 2.5 x 1.5 Drenes existentes que se utilizaran para drenar los caudales de exceso de la inundaci6n provocada por el rio Guaraguao 85±540 Alcantarilla 2 Construir compuerta nueva 85+540_____ de 0.90m Ampliar las tuberias existentes ( 2 tubos de 0.60m), demoler y construir la compuerta. 86+115 La alternativa 2 es demoler y construir una compuerta de entrada, colocar dos tubos de 0.90 o box de 2 x2 y demoler v construir la compuerta de salida 86+262 Alcantarilla Demoler alcantarilla existente y reemplazar por una nueva ____ ___ ___ de 90 86+365 Mantenimiento 86+403 Mantenimiento 86+806 Mantenimiento Alcantarilla de caj6n de control de entrada con muro de 86+893 Box 2 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Caudal aportado por las areas de la margen I izquierda de la carretera 86+914 Construir compuerta nueva Page 12 of 15 ANNEX A List of Culverts Obras de Drenaje Menores LOTE 5 ABSCISA OBRAS OBSERVACIONES Alcantarilla de caj6n de control de entrada con muro de 87+164 Box 2 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Caudal aportado por las areas de la margen izquierda de la carretera 87+430 Alcantarilla Obra necesaria para encauce de agua del carreteable de 90 existente (margen izquierda) 87+449 Box 2 x 1.5 Obra necesaria para paso canal existente 87+496 Alcantarilla Obra necesaria para encauce de agua del carreteable de 90 existente (margen derecha). Obra opcional 87+834 Alcantarilla Obra necesaria para paso canal existente de 90 88+370 Conservar 88+386 Alcantarilla Demoler alcantarilla existente y reemplazar por una nueva de 90 88+645 Eliminar 88+819 Mantenimiento 89+464 Eliminar 89+538 Eliminar 89+553 Eliminar 89+867 Alcantarilla Demoler alcantarilla existente y reemplazar por una nueva de 90 89+867 Eliminar Alcantarilla de Caj6n de control de entrada con muro de 90+444 Box 2.5 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Para Permitir el paso de la crecida Alcantarilla de Caj6n de control de entrada con muro de 90+815 Box 2.5 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Para Permitir el paso de la crecida Alcantarilla de Caj6n de control de entrada con muro de 91+463 Box 3.5 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Para Permitir el paso de la crecida Alcantarilla de Caj6n de control de entrada con muro de 91+849 Box 3.5 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia I aguas arriba. Para Permitir el paso de la crecida Alcantarilla de Caj6n de control de entrada con muro de 92+354 Box 2.5 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Para Permitir el paso de la crecida Page 13 of 15 ANNEX A List of Culverts Obras de Drenaje Menores LOTE 5 ABSCISA OBRAS OBSERVACIONES Demoler y construir alcantarilla de Caj6n con de control de 92+680 Box 2.5 x 1.5 entrada con muro de cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Para Permitir el paso de la crecida 93+067 Eliminar Alcantarilla de Caj6n de control de entrada con muro de 93+174 Box 2.5 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Para Permitir el paso de la crecida Alcantarilla de Caj6n de control de entrada con muro de 93+603 Box 2.5 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Para Permitir el paso de la crecida 2 Box 3.5 x Alcantarilla de Caj6n de control de entrada con muro de 94+064 1 5 cabecera normal al eje del conducto, enchufe dirigido hacia 1.5 aguas arriba. Para Permitir el paso de la crecida Alcantarilla de Caj6n de control de entrada con muro de 94+460 Box 2.5 x 1.5 cabecera normal al eje del conducto, enchufe dirigido hacia aguas arriba. Para Permitir el paso de la crecida 95+259 Box 2.5 x 1.5 95+338 Box 4 x 2.1 Mantener y adecuar al la Carretera. 95+793 Box 2.5 x 2.0 95+866 Eliminar 96+362 Eliminar 96+431 Box2.5x 1.5 96+715 Box 2.5x 1.5 96+970 Box lx 1 Paso canal 97+517 Box 4 x 1.5 97+582 Alcantarilla Cruza el carreteable (paralelo a la via, margen derecho) de 90 97+623 Alcantarilla Cruza el carreteable (paralelo a la via, margen derecho) __________de 90 ________________________ 97+652 Cruce del Eliminar __________Canal Viejo 97+680 Box 3.8x2.1 Manejar y adecuar a la carretera Aglipo 98+037 Box de 2.5 x 98+037 Acnai2.0 lla 98+072 Alcantarilla Demoler y construir obra nueva dc 90 ________________________ 98+359 Alcantarilla Demoler y construir obra nueva 98+781 Alcantarilla Conservar 99+112 Mantener y adecuar al la Carretera.(paralelo a la via) 99+910 Es una estructura de control. Page 14 of 15 ANNEX A List of Culverts Obras de Drenaje Menores LOTE 5 ABSCISA OBRAS OBSERVACIONES 100+160 2 Alcantarillas Permitir el paso de los caudales conducido por el Dren 100+160 de 48" existente por debajo de la carretera. 100+180 Puente Mantener y adecuar al la Carretera. Aglipo Existente 100+263 2 Alcantarillas 100+263 de 90 100+810 Mantener (paralelo a la via) 101+690 Demoler 102+535 Demoler 103+841 Box 2.5 xl.5 Alcantarilla 104+313 de 90 104+366 Pont6n Pont6n para pasar el canal existente (Parcelario) Alcantarilla 104+892 de 90 104+958 Box 2.5 x 1.5 Alcantarilla 105+370 de 90 Alcantarilla 105+620 de 90 Page 15 of 15 LOTE 1_2 ANNEX B Anexo B. Interferencia con caminos rurales y entradas a fincas LOTE I LOTE 2 ABSCISA INTERFERENCIA OBSERVACIONES ABSCISA INTERFERENCIA OBSERVACIONES KO+050 Via carreteable Urbanizaci6n Marbella K12+933 Via carreteable KO+105 Via carreteable K17+210 Via carreteable KO+165 Via carreteable K17+680 Via carreteable KO+255 Via carreteable K21+197 Via carreteable KO+342 Via carreteable K22+868 Via carreteable KO+430 Via carreteable K23+242 Via carreteable KO+515 Via carreteable K23+450? Via carreteable KO+612 Via carreteable K23+480 Via carreteable KO+712 Via carreteable K24+777 Via carreteable KO+805 Via carreteable K24+928 Via carreteable KO+895 Via carreteable K26+260 Via carreteable KO+988 Via carreteable K26+676 Via carreteable Kl +077 Via carreteable K26+892 Via carreteable K1+171 Via carreteable K27+456 Via carreteable KI+260 Via carreteable K27+741 Via carreteable K1+761 Via carreteable K28+110 Via carreteable K1+812 Via carreteable K29+744 Via carreteable K1+820 Via carreteable K1+863 Via carreteable K1+916 Via carreteable Kl +971 Via carreteable K2+025 Via carreteable K2+072 Via carreteable K2+109 Via carreteable K2+261 Via carreteable K2+391 Via carreteable K2+494 Via carreteable K2+550 Via carreteable K2+600 Via carreteable K2+660 Via carreteable K2+725 Via carreteable K2+896 Via carreteable K6+750 Via carreteable Exclusiva a Cantera K6+877 Via carreteable Exclusiva a Cantera K8+794 Via carreteable Se proyecta BOX K9+060 Via carreteable k9+500? Via carreteable I Page 1 of 1 LOTE 2 ANNEX C Listado General de Propietarios. LOTE 2 Consecutivo NOMBRE CEDULA CONSTRUCCIONES CULTIVOS UBICACION AREA m2 c.c. Titulo 1 Chane Yi Yang 001-1354121-3 Potreros, 200 palmas de coco, 4000 CABRETO uayabos, 20 mangos, bosques. 59976.53 X 2 Juan Bautista Reyes Gir6n 001-0601550-6 8338 m2 de Caffa, bosques, potreros. CABRETO 57563.80 = X 3 Timoteo Pantale6n Fernandez 001-0601514-2 Bosques, potreros CABRETO 10042.35 4 Rigoberto Diaz Potreros, bosque, mangos, palmas. CABRETO 11089.02 5 Efrain Castillo Angulo 001-0602556-2 Potreros, ciruelos, guasimos, mangos. CABRETO 12127.02 X X 6 Cirilo Martinez 001-0601052-3 Potreros, ciruelos, guasimos, mangos. CABRETO 7637.63 X X 7 Tomas Payano Hernandez 008-0015915-5 Potreros. YABACAO 19185.67 8 Manuel Martinez 001-0671492-5 Potreros y cultivo de arroz. YABACAO 15079.82 9 CEA Potreros. YABACAO 14370.99 10 Juan Matos de la Cruz Potreros. Mangos, palmas, ceibas. YABACAO 12256.14 11 Feliso Evangelista Berroa 001-0637691-6 Casa: 81.15 - Casa en madera: Potreros. Mangos, palmas, matas de platano, LAS MERCEDES 62.40 - Casa pequeffa: 18.90 - ceibas, guayabos, ciruelos, naranjos, Cocina: 10.08 - Ramada en zinc: aguacates, jardines. 34.13 - Ramada en Madera: 54.76 Bafto: 3.60 68406.17 12 Juan Wilfrido Espiritu Fabian 008-0024238-0 Yuca, batata, molondr6n, coco, manzana de LAS MERCEDES aro, ciruelos. 3783.99 13 Aurelia Marte de la Cruz 008-0019570-3 Casa en madera: 54.08 - Bafo Jobo, chinola, yuca, palmas, jardines. LAS MERCEDES zinc: 2.20 2610.66 14 Celestina Marino 008-0020276-4 Casa en madera: 55.25 - Cocina Aguacates, palmas, ciruelos, prados, LAS MERCEDES en zinc: 6.96 - Baffo zinc: 2.52 iardines. 2044.55 15 Miguel G6mez Potreros, palmas. LAS MERCEDES 4920.26 16 Camilo Martinez Enramada, piso en concreto: 35.61 Palmas, jardines, prados. LAS MERCEDES - Casa en madera: 28.05 778.50 17 Carmen Chivilli Menor de edad Casa en bloque: 99.28 LAS MERCEDES 18 Agueda Ventura Guzman 008-0016180-4 Casa en madera: 67.05 - Baff Manzana de oro, mangos, palmas, mam6n, LAS MERCEDES zinc: 1.65 buen pan, tamarindo, platano, jardines. 2980.49 19 Marcia Sosa Martinez 008-0019635-4 Casa en madera: 27.50 - Cocina Mangos, palmas, jardines. LAS MERCEDES I en zinc: 2.80 1604.561 20 Carmen Martinez Mejia 008-0016023-6 Casa en madera: 21.20 - Baffo en Mangos, palmas, jardines. LAS MERCEDES _____ _____ zinc: 1.00 21 Rafael Antonio Martinez Sanchez 001-0314933-2 Caffa, mangos, palmas. LAS MERCEDES 7340.69 22 Maria Elena Soriano y Elsa Margarita 001- Cafa LAS MERCEDES Soaano 001-0460744-5 24357.89 23 Pedro Leyba Guzman 008-0015986-5 Cafia LAS MERCEDES 18492.98 X 24 Francisco de la Cruz 008-0022230-9 Cafa, aguacates, guayabos, maiz, naranjos, CRUZ VERDE mangos, palmas. 15845.22 X 25 Santos de la Cruz 001-0628094-4 Caffa y pastos. CRUZ VERDE 4340.46 X 26 Daniel de la Cruz Guzman 008-0015846-1 Cafna CRUZ VERDE 8655.78 X 27 Jose G6mez Potrero CRUZ VERDE 103.22 28 Ramona Altagracia Ramirez Florencio 001-0679587-5 Yuca. CRUZ VERDE 3166.58 29 Lauterio Guzman Cafia CRUZ VERDE 7314.04 30 Nando Potreros, mangos, guayabos, palmas. CRUZ VERDE 15613.47 31 Agustin Ovalle Caffa CRUZ VERDE 9866.27 32 Angel Maria Carbonell Cafa, palmas, guandul, yuca. CRUZ VERDE 4674.60 33 Marcelino Carbonell de los Santos 008-0015801-6 Caffa, palmas, mangos, pastos. CRUZ VERDE 14372.63 - X 34 Agustin Tolentino de los Santos 008-0015750-5 Caffa, potreros, palmas, mangos. CRUZ VERDE 1571.81 35 Juan Fabian Potreros, mangos, palmas, guayabos. CRUZVERDE 12990.29 36 Arsenio Soriano Frias 001-0460084-6 Caffa, potreros, palmas, mangos, guayabos. CRUZVERDE List of properties.xis Page 1 LOTE 2 ANNEX C Listado General de Propietarios. LOTE 2 Consecutivo NOMBRE CEDULA CONSTRUCCIONES CULTIVOS ULBICACION AREA m2 c.c. Titulo 37 Victoria Frias y Nicasio Rafael Soriano 008-0015922-0 Casa en madera: 36.45 Can'ta, maiz, mangos, palmas. CRUZ VERDE y 008-0016148 1 33591.33 38 Jose Rosario Javier 008-0013866-1 Cana y potreros CRUZ VERDE 38346.21 39 "Rafael Vinicio Pascual" 001-0728410-1 Cafa CRUZ VERDE 31118.79 40 Buten Caffa, palmas. CRUZ VERDE 48539.24 41 Peter Cafia, palmas, mangos. CRUZ VERDE 3113.82 42 Beata Maria Soriano Valdez 008-0014058-4 Cafia, bosques y potreros PUEBLO NUEVO 8717.41 43 Erodito Fabian Guzman 008-0013752-3 Caha, postes, mangos, palmas, arroz. PUEBLO NUEVO 24985.37 44 Agustin Ramirez Casa de madera: 40.51 - Cocina: Arroz, yuca, batata, guandules. PUEBLO NUEVO ______ _____ 22.02 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 2103.91 1 45 Bertilio Ozorio 008-0013938-8 Casa de madera: 1.60 Yuca, batata, molondr6n, coco, manzana de PUEBLO NUEVO oro, ciruelos, platanos. 2103.91 46 Celia Lizardo L. 001-0571799-5 Cultivo de citricos PUEBLO NUEVO 21162.88 NO NO 47 Ramona de Jesus 008-0013670-7 Potrero y bosque nativo PUEBLO NUEVO 2616.16 48 Regino Potrero PUEBLO NUEVO 4169.43 49 Pablo Santana 001-0497495-1 Cafna PUEBLO NUEVO 12055.39 50 Marcelo Marcial 001-0526157-2 Construcci6n sin techo: 120.19 - Cai'ia, guayabos, bosques. PUEBLO NUEVO Casa en madera: 13.04 14042.30 51 Tomas Guzman 008-0013831-5 Cafta, palmas, platanos. PUEBLO NUEVO 6485.69 52 Rafael Guridis y Francisca Reyes de 008-0013810-9 Cesped, jardines. PUEBLO NUEVO Guridis 008-0013966-9 1895.57 53 Cecilio de Jesus Consoro 008-0013871-1 Casa noroeste: 48.84 - Casa Palmas, naranjos, mangos, jardines, prados. PUEBLO NUEVO nordeste: 31.27 - Habitaci6n: 13.83 - Casa Suroeste: 24.80 - Enramada: 11.70 - Cocina: 7.42 - Cocina sur: 2.45 - Bai'o: 2.54 2548.97 54 Secundino de Jesus Guzman 008-0013678-0 Cania, palmas, mangos, guayabos y potreros PUEBLO NUEVO _____ ____ ____ 23704.80 _ _ _ _ _ 55 Jose Francisco Matos y Matos 001-0491915-4 Potreros, mangos, palmas, guayabos. PUEBLO NUEVO 19010.50 56 Ernestina Guridi Guridi 008-0013806-7 Casa principal: 41.52 - Casa norte: Cesped, palmas, mangos, guayabos, PUEBLO NUEVO 23.10 jardines, yuca. 1693.79 57 Patricia Beltran 008-0013620-2 Casa en madera: 15.00 - Bafno en Potrero, yuca, manzano de oro, guasimos. PUEBLO NUEVO Izinc: 2.56 7373.87 _ 58 Severo Ovalle Cafna PUEBLO NUEVO 71674.771 59 Dhimas Ozora Ramirez 008-0015259-7 Potrero, cania, mango, coco, buen pan, maiz, PUEBLO NUEVO yuca, aguacates. 22159.321 60 La Manicera Palmeras africanas PUEBLO NUEVO 152514.881 List of properties.xIs Page 2 LOTE 3 ANNEX C Listado general de Propietarios. LOTE 3 | Consecutivo NOMBRE CEDULA CONSTRUCCIONES CULTIVOS UBICACI6N AREA m2 c.c. Titulo 1 Indupalmas Palmas de aceite El Cinco 410810.45 2 Mario Mercedes Familia 008-0011170-0 Casa principal 66.49 P1atano, yuca, naranja El Cinco 8298.00 2A Dario Zacarias Mercedes 008-0011176-7 Casa principal 36.93; bano Potreros y cultivos varios El Cinco Soriano 8.99; caseta 18.42 _ 2B Miguel Mercedes Soriano 008-0023779-4 Casa principal 27.46 Platano, naranja, yuca, coco El Cinco 2C Jose Antonio Reynoso Martinez 008-0011676-6 Casa principal 53.73 Pltano, naranja, yuca, coco El Cinco 3 Sergio Santana Potreros El Cinco 22156.22 4 Saturnino Mercedes Potreros, platano, chinola El Cinco 40392.96 5 Gustavo Potreros, bosque nativo y canla El Cinco 14758.68 6 Gertrudis Niesche Casa principal 54.79 Potreros, caria, platano El Cinco 49541.83 __ 7 Manuel Montanlo Potreros, canla, pl6tano, El Cinco 12338.33 g ranadillo 8 Gregorio Soriano Moreno 008-0011248-4 Casa principal 44.44; cocina Potreros, cultivos varios El C