Opening date 1910 Commission date 1910, 1949 Installed capacity 60 MW Length 300 m Total capacity 13.44 million m³ Impound Snake River | Impounds Snake River Turbines 4 Height 12 m Surface area 3.035 km² Operator Idaho Power | |
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Location Twin Falls County / Gooding counties, Idaho Similar Snake River, C J Strike Dam, Milner Dam, Minidoka Dam, Oxbow Dam | ||
Lower Salmon Falls Dam is a concrete gravity-type hydroelectric dam on the Lower Salmon Falls of the Snake River, in the U.S. state of Idaho. The dam is located 5 miles downstream from Upper Salmon Falls, between Gooding County and Twin Falls County, Idaho.
HistoryEdit
The Lower Salmon Falls Dam was originally built in 1910 by the Greater Shoshone and Twin Falls Water Power Company. Idaho Power Company acquired the plant in 1916 and rebuilt it in 1949. It's located at river mile 573.0. Nearby cities are Twin Falls, Mountain Home, and Hailey, Idaho.
The newer dam is 983 feet long, including a 180-foot, 38-foot-high overflow dam and has a powerhouse containing four turbine generator units with a capacity of 60 MW. Its reservoir is 6.6 miles long, with a 750-acre surface area, with a storage capacity of 10,900 acre-feet. It includes a 6-foot-wide, 510-foot-long fish ladder.
Along with the Upper Salmon Falls Dam and Bliss Dam is part of Idaho Power Company's Mid-Snake Projects. The Mid-Snake Projects in total have a nameplate capacity of 169.5 MW.