Jiguey Dam
| Jigüey Dam | |
|---|---|
 Location of Jigüey Dam in Dominican Republic
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| Official name | Presa Jigüey |
| Country | Dominican Republic |
| Location | San Cristóbal, San Cristóbal Province |
| Coordinates | 18°32′47.65″N 70°22′38.39″W / 18.5465694°N 70.3773306°WCoordinates: 18°32′47.65″N 70°22′38.39″W / 18.5465694°N 70.3773306°W |
| Purpose | Power |
| Status | Operational |
| Opening date | 1992 |
| Construction cost | US$500 million |
| Owner(s) | Dominican Hydroelectric Generation Company |
| Dam and spillways | |
| Type of dam | Arch-gravity |
| Impounds | Nizao River |
| Height | 110.5 m (363 ft) |
| Spillway type | Crest, uncontrolled overflow |
| Spillway capacity | 11,910 m3/s (421,000 cu ft/s) |
| Reservoir | |
| Total capacity | 167,970,000 m3 (136,180 acre·ft) |
| Active capacity | 130,950,000 m3 (106,160 acre·ft) |
| Inactive capacity | 37,020,000 m3 (30,010 acre·ft) |
| Catchment area | 887 km2 (342 sq mi) |
| Normal elevation | 541.5 m (1,777 ft) |
| Jigüey Hydroelectric Station | |
| Coordinates | 18°30′35.40″N 70°19′51.21″W / 18.5098333°N 70.3308917°W |
| Commission date | 1992 |
| Turbines | 2 x 49 MW Francis-type |
| Installed capacity | 98 MW |
The Jigüey Dam is an arch-gravity dam on the Nizao River about 32 km (20 mi) east of San Cristóbal in San Cristóbal Province of the Dominican Republic. At 110.5 m (363 ft) tall, it is the third highest dam in the country. The purpose of the dam is to produce hydroelectric power and it supplies the largest hydroelectric power station in the country. The dam diverts water through over 4.4 km (2.7 mi) of headrace pipe and to the power station downstream. The power station contains two 49 MW Francis turbine-generators for an installed capacity of 98 MW. The dam was completed and its power station was commissioned 1992. It cost US$500 million to build and funding was provided by the host government.
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