geo.wikisort.org - Reservoir
Brownlee Dam is a hydroelectric earth fill embankment dam in the western United States, on the Snake River along the Idaho-Oregon border. In Hells Canyon at river mile 285, it impounds the Snake River in the 58-mile-long (93 km) Brownlee Reservoir.
| Brownlee Dam | |
|---|---|
 View from northeast | |
  Location in the United States  Location in Idaho | |
| Official name | Brownlee Dam |
| Country | United States |
| Location | Hells Canyon, Baker Co., Oregon / Washington Co., Idaho |
| Coordinates | 44.836°N 116.9°W |
| Construction began | 1955[1][2] |
| Opening date | May 9, 1958 [3][4] |
| Operator(s) | Idaho Power Company |
| Dam and spillways | |
| Impounds | Snake River |
| Height | 420 feet (128 m) |
| Reservoir | |
| Creates | Brownlee Reservoir |
| Total capacity | 1,426,700 acre-feet (1.7598 km3) |
| Catchment area | 72,590 square miles (188,000 km2) |
| Surface area | 15,000 acres (61 km2) |
| Normal elevation | 2,070 feet (630 m) |
| Power Station | |
| Installed capacity | 585.4 MW |
| Annual generation | 2,406.8 GWh |
 | |
It is part of the Hells Canyon Project that also includes Hells Canyon Dam and Oxbow Dam, all built and operated by Idaho Power Company. The first and upper-most of the three dams, its contractor was Morrison-Knudsen of Boise.[1][2][5] Filling started 64 years ago on May 9, 1958,[3] flooding the community of Robinette, Oregon.
The dam's powerhouse contains five generating units with a total nameplate capacity of 585.4 megawatts.
Lacking passage for migrating salmon, the three Hells Canyon Project dams blocked access by anadromous salmonids to a stretch of the Snake River drainage basin from Hells Canyon Dam up to Shoshone Falls, which naturally prevents any upstream fish passage to the upper Snake River basin.[6]
Heliport
There is a 100-by-60-foot (30 by 18 m) private heliport, Brownlee Heliport (FAA LID: OR75), located near the dam.
See also
- Brownlee, Oregon, the dam's namesake, was located about two miles upstream.
- List of dams in the Columbia River watershed
References
- "Brownlee dam one-third done". Spokesman-Review. Spokane, Washington. Associated Press. December 2, 1956. p. 26.
- "Brownlee dam base readied". Spokesman-Review. Spokane, Washington. Associated Press. December 30, 1956. p. 12.
- "Idaho Power shuts gates of big dam". Spokesman-Review. Spokane, Washington. May 10, 1958. p. 2.
- "New dam goes into operation on Snake River". Florence Times. Alabama. Associated Press. May 10, 1958. p. 7.
- "Brownlee dam excavation job more than half done". Spokesman-Review. Spokane, Washington. Associated Press. April 21, 1957. p. 20.
- "Fence of voltage herds fish near Brownlee Dam". Spokane Daily Chronicle. Washington. November 29, 1957. p. 15.
External links
Media related to Brownlee Dam at Wikimedia Commons- Brownlee Dam, Columbia Basin Research
- Brownlee Dam, Northwest Power and Conservation Council
- Brownlee Dam, Idaho Power
- Resources for this airport:
- FAA airport information for OR75
- AirNav airport information for OR75
- FlightAware airport information and live flight tracker
- SkyVector aeronautical chart for OR75
Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
WikiSort.org - проект по пересортировке и дополнению контента Википедии