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Grand Coulee Dam | by Bureau of Reclamation
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Grand Coulee Dam

Construction of Grand Coulee Dam began in 1933 and was completed in 1942. Grand Coulee Dam is the largest hydropower producer in the United States with a total generating capacity of 6,809 megawatts. It is also part of the Columbia Basin Project, irrigating more than 600,000 acres, and is the cornerstone for water control on the Columbia River in the United States.

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Taken on June 30, 2011