Hydrologic and Structural Considerations for the Initial Filling of Jiguey Dam, Dominican Republic

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by Guy S. Lund, Engineering Consultants, Inc, Englewood, United States,
Ed A. Toms, Engineering Consultants, Inc, Englewood, United States,

Document Type: Proceeding Paper

Part of: Water Management in the '90s: A Time for Innovation

Abstract: This paper describes the hydrologic and structural considerations of the initial filling of Jiguey Dam which is locate on the Rio Nizao about 100 kilometers west-northwest of Santo Domingo Dominican Republic. The Rio Nizao system consist of three tandem multiple purpose reservoirs: Jiguey; Aguacate; and Valdesia. Jiguey and Aguacate dams were added to the system in 1991 to increase the system's hydropower capacity and stored water for domestic and agricultural use. Jiguey Dam is a 115 meter high, 339 meter long, two-centered concrete gravity arch dam with gravity thrust blocks on both the right and left abutment. A 6,900 meter long power tunnel transfers the water from Jiguey Reservoir to a 98 MW underground powerhouse. Aguacate Dam, a power regulating dam downstream of Jiguey Dam, is a 51.5 meter high concrete gravity dam. A 11,000 meter long power tunnel transfers the water from Aguacate Reservoir to a 52 MW underground powerhouse. Valdesia Dam located downstream of Aguacate Dam is a 82.0 meter concrete gravity dam with domestic and agricultural turnouts and a 54 MW powerhouse.

Subject Headings: Gravity dams | Concrete dams | Arch dams | Power plants | Hydro power | Hydrology | Reservoirs | Developing countries | Dams | Tunnels | Water meters | Dominican Republic

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