The concrete gravity dam on the Columbia River in Washington State, built from 1933 to 1941 with a third powerplant added between 1967 and 1974, operated by the Bureau of Reclamation. Its 6,809 megawatts of generating capacity make it the largest hydropower producer in the United States, well ahead of Hoover Dam at 2,080, and its more than 21 billion kilowatt-hours a year is a production figure, not a capacity one; the dam also serves flood control, irrigation and storage.
Facts
Facility Type LocationColumbia River, Washington State, United States 1 Capacity (MW) Commissioned YearConstructed 1933 to 1941; the Nathaniel Washington third powerplant was added 1967 to 1974. Connections
Associated With
Source United States Bureau of Reclamation Site
Uses Source
Source United States Bureau of Reclamation Site
Sources
1. United States Bureau of Reclamation Site
United States Bureau of ReclamationGrand Coulee Dam fact sheet
Grand Coulee Dam is the largest hydropower producer in the United States, generating more than 21 billion kilowatt-hours of electricity each year.
Grand Coulee Dam fact sheet, Two Dams Compared table
Operating Agency Bureau of Reclamation ... Location Washington State
Operating status, entity description
Its 6,809 megawatts of generating capacity make it the largest hydropower producer in the United States, well ahead of Hoover Dam at 2,080
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