Lower Baker Dam
| Lower Baker Dam | |
|---|---|
 Lower Baker Dam from downstream | |
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| Country | United States |
| Location | Skagit County, Washington |
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| Status | In use |
| Opening date | 1925 |
| Owner | 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] |
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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]
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
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