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Grand Coulee Dam

Grand Coulee Dam
123
 
Related Projects & Facilities
Columbia Basin Project
Grand Coulee Powerplant
 
Related Links
Recreation.gov
Grand Coulee Dam Visitor Center
Reservoir Storage
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Overview General Dimensions Hydraulics & Hydrology Contact Information
Total Water Storage at Elevation9,652,000 ac-ft total; 5,185,400 ac-ft active
Maximum Water Surface Elevation1311.1 ft
Normal Water Surface Elevation1290.0 ft
Spillway TypeDrum gates
Spillway Capacity at Elevation1,000,000 cfs at 1290.0 ft
Outlet Works Capacity at Elevation265,000 cfs; Powerplant 280,000 cfs
Drainage Area74100 sq mi
Hydrometeorological Report (HMR)HMR 18

Last updated: Jan 03, 2013