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Lower Baker Dam (or simply Baker Dam) is a dam across the Baker River one mile north of Concrete, Washington. It forms a reservoir called Lake Shannon which stretches 7.5 miles (12.1 km) upstream. The dam is operated by Puget Sound Energy as part of the Baker River Hydroelectric Project.[3]
| Lower Baker Dam | |
|---|---|
 Lower Baker Dam from downstream | |
| Country | United States |
| Location | Skagit County, Washington |
| Coordinates | 48°32′51″N 121°44′28″W |
| Status | In use |
| Opening date | 1925 |
| Owner(s) | Puget Sound Energy |
| Dam and spillways | |
| Type of dam | Concrete thick-arch |
| Impounds | Baker River |
| Height | 285 feet (87 m) |
| Length | 550 feet (170 m) |
| Spillway type | Uncontrolled overflow |
| Reservoir | |
| Creates | Lake Shannon |
| Total capacity | 161,470 acre-feet (199,170,000 m3)[1] |
| Catchment area | 250 square miles (650 km2) |
| Surface area | 2,190 acres (890 ha) |
| Power Station | |
| Hydraulic head | 280 feet (85 m) |
| Installed capacity | 79 MW |
| Annual generation | 344,850,000 KWh[2] |
The dam has a thick arch design, and is 285 feet (87 m) high and 550 feet (170 m) long. It spans the Baker River in a narrow reach known as Eden Canyon, just above the river's confluence with the Skagit River. It is able to hold 161,470 acre-feet (199,170,000 m3) of water, of which 29,426 acre-feet (36,296,000 m3) is reserved for flood control. At full capacity the dam's hydroelectric plant can generate 79 megawatts of power.[4] The other dam on this river, Upper Baker Dam, lies about 8 miles (13 km) upstream, and serves a similar purpose to Lower Baker.
References
- "SKAGIT RIVER BASIN 112193000 LAKE SHANNON AT CONCRETE, WA" (PDF). wa.water.usgs.gov. Retrieved 18 March 2016.
- "LOWER BAKER". carma.org. Retrieved 18 March 2016.
- "3.3 Water Quantity" (PDF). Baker River Project, FERC No. 2150. Puget Sound Energy. March 2002. Retrieved 2011-01-17.[permanent dead link]
- "Fact Sheet" (PDF). Archived from the original (PDF) on 2013-08-23. Retrieved 2013-07-28."Baker River Hydroelectric Project Fact Sheet" (PDF). Archived from the original (PDF) on 2011-11-06.
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На других языках
[de] Lower Baker Dam
Der Lower Baker Dam (oder einfach Baker Dam) ist ein Damm im Baker River eine Meile (1,6 km) nördlich von Concrete. Er bildet einen Stausee, den Lake Shannon, welcher sich etwa 12 km flussaufwärts erstreckt. Der Damm wird von der Puget Sound Energy als Teil des Baker River Hydroelectric Project betrieben.[1]- [en] Lower Baker Dam
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