| Minidoka Dam | |
|---|---|
 Minidoka Dam and Lake Walcott | |
  Location in the United States  Location in Idaho | |
| Country | United States |
| Location | Cassia / Minidoka counties, Idaho |
| Coordinates | 42°40′10″N 113°29′01″W / 42.66944°N 113.48361°W |
| Construction began | 1904 |
| Opening date | 1906 |
| Operator(s) | U.S. Bureau of Reclamation |
| Dam and spillways | |
| Impounds | Snake River |
| Height | 86 feet (26 m) |
| Length | 4,475 feet (1,364 m) |
| Spillway type | Gated and flashboard section |
| Spillway capacity | 40,800 cu ft/s (1,160 m3/s) |
| Reservoir | |
| Creates | Lake Walcott |
| Total capacity | 210,200 acre-feet (0.2593 km3) |
| Catchment area | 2,231 sq mi (5,780 km2) |
| Normal elevation | 4,245 feet (1,294 m) |
| Power Station | |
| Hydraulic head | 74 ft (23 m) |
| Turbines | 2 X 10 MW Kaplan horizontal turbines (Units 8, 9) 3 and 5.5 MW Francis turbines (Units 6 and 7), Units 1-5 retired |
| Installed capacity | 28 MW |
Minidoka Dam and Power Plant | |
| Area | 640 acres (260 ha) |
| Built | 1904 |
| NRHP reference No. | 74000746 [1] |
| Added to NRHP | October 29, 1974 |
The Minidoka Dam is an earthfill dam in the western United States, on the Snake River in south central Idaho. Completed in 1906, the dam is east of Rupert on county highway 400; it is 86 feet (26 m) high and nearly a mile (1.6 km) in length, with a 2,400-foot (730 m) wide overflow spillway section.[2]
Minidoka Dam and power plant were listed on the National Register of Historic Places in 1974.[1] Walcott Park, close to the dam, is a popular summertime picnic area. Lake Walcott State Park and the headquarters for the Minidoka National Wildlife Refuge are adjacent to the dam.
- ^ a b "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
- ^ Jackson, Donald C. (1988). Great American Bridges and Dams. The Preservation Press. pp. 289–290. ISBN 0-89133-129-8.