Lewiston Dam
State: California
Region: Mid-Pacific
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General Project CVP-Shasta/Trinity Watercourse Trinity River Reservoir Lewiston Lake Original Construction 1960-1963 National ID Number CA10165
Dimensions Structural Height 91.00 ft Crest Length 745.00 ft Top of Active Conservation Pool (Elevation) 1902.00 ft Top of Inactive Conservation Pool (Elevation) 1898.00 ft Spillway Crest Elevation 1874.50 ft Streambed at Dam Axis 1829.00 ft Crest Elevation 1910.00 ft Hydraulic Height (Normal Operating Depth at Dam) 73.00 ft Top of Dead Storage Pool (Elevation) 1843.25 ft
Hydraulics & Hydrology Spillway Capacity at Elevation 30000 cfs at 1902.0 ft Outlet Works Capacity at Elevation 325 cfs at 1902.0 ft Drainage Area 25.6 sq mi Normal Water Surface Elevation 1902.0 ft Auxiliary Spillway No Hydrometeorological Report (HMR) HMR 36 Net Generation 2,423,000 kWh
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