| Little Goose Dam | |
|---|---|
Little Goose Dam from the north side of the Snake River |
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| Location | Columbia / Whitman counties, Washington, USA |
| Construction began | June 1963 |
| Opening date | 1970 |
| Dam and spillways | |
| Type of dam | Concrete-gravity, run-of-the-river |
| Height | 98 feet (30 m) |
| Length | 2,655 feet (809 m) |
| Type of spillway | Service, gate-controlled |
| Reservoir | |
| Creates | Lake Bryan |
| Capacity | 516,300 acre·ft (0.6368 km3)[1] |
| Surface area | 10,025 acres (40.57 km2) |
| Power station | |
| Type | Yes |
| Turbines | 6 x 135-153 MW units |
| Installed capacity | 810 megawatts |
| Maximum capacity | 932 megawatts |
Little Goose Lock and Dam is a hydroelectric, concrete, run-of-the-river dam in Columbia and Whitman counties in the state of Washington, on the Snake River.[2] The dam is located 9 miles (14 km) northeast of the town of Starbuck, and 25 miles (40 km) north of Dayton.
Construction began in June 1963. The main structure and three generators were completed in 1970, with an additional three generators finished in 1978. Generating capacity is 810 megawatts, with an overload capacity of 932 MW. The spillway has eight gates and is 512 feet (156 m) long.
Little Goose Dam is part of the Columbia River Basin system of dams.
Lake Bryan, named for Doctor Enoch A. Bryan, is formed behind the dam. The lake stretches to the base of Lower Granite Dam, 37 miles (60 km) upstream. Lake Herbert G. West, formed from Lower Monumental Dam runs 28 miles (45 km) downstream from the base of the dam.
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