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

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 | Hydro power | Power plants | Reservoirs | Water tunnels | Dominican Republic | Caribbean

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