Barahona province, Dominican Republic

Montegrande Dam – Complementary Works

The Montegrande Multipurpose Project is a major complex of hydraulic works dedicated to the development of southwestern Dominican Republic. The Project serves multiple purposes, including flood control, municipal water supply, irrigated agriculture, hydropower generation, alongside secondary reservoir uses such as fisheries and ecotourism.

Barahona province, Dominican Republic

Complementary works of Multiporpose MONTEGRANDE dam

Hydropower, Irrigation, Water Supply

The project includes all the hydraulic works (irrigation, water supply, hydropower, flood control works) downstream of the multipurpose Montegrande dam under construction.

SP has been responsible for the design of the hydropower plant located at dam toe.

The project includes the upgrade and expansion of an irrigation network (canals, pipelines, weir, ponds) serving the banks of the Yaque river from Tamayo to Neyba Valley (on the right bank) and Habanero y Cabral (on the left bank).

As part of this assignment, SP has also designed the upgrade and expansion of the municipal water supply serving the south-western regions of Barahona – Bahoruco – Independencia, along with the flood mitigation works.

Barahona province, Dominican Republic

PLACE

Banco Centroamericano de Integración Económica (BCIE)

CLIENT

2022 – 2025

YEAR

Main Features

Irrigation network (canals, pipelines, weir, ponds) serving the banks of the Yaque river, including:

Yaque del Sur Right Bank (pipeline/canals, Q= 17.9 m3/s, L_tot= 47.8 km, irrigated area 7,550 ha)

Yaque del Sur Left Bank (pipelines/canals, Q= 14.4 m³/s, L_tot = 22.2 km, irrigated area 5,440 ha)

The upgrade and expansion of the municipal water supply serving the south-western regions of Barahona – Bahoruco – Independencia, including:

Main pipeline (L = 28,6 km, D = 2.2 m)

replacing existing pipelines and pumping

Population served (1.000.000 inhabitants)

A hydropower plant located at dam toe (Open air, No. 2 Axial Turbines, IP = 13.3 MW)

Flood mitigation works (embankment total length 23 km, height 2.5 – 5.5 m, crest width 4-5 m)

Additional Informations

Barahona Province, Dominican Republic