Grand Coulee Dam

Grand Coulee Dam is a concrete gravity dam on the Columbia River in the U.S. state of Washington, built to produce hydroelectric power and provide irrigation water. Constructed between 1933 and 1942, Grand Coulee originally had two powerhouses. The third powerhouse, completed in 1974 to increase energy production, makes Grand Coulee the largest pow…
Grand Coulee Dam is a concrete gravity dam on the Columbia River in the U.S. state of Washington, built to produce hydroelectric power and provide irrigation water. Constructed between 1933 and 1942, Grand Coulee originally had two powerhouses. The third powerhouse, completed in 1974 to increase energy production, makes Grand Coulee the largest power station in the United States by nameplate capacity at 6,809 MW.
  • Type of dam: Concrete gravity
  • Impounds: Columbia River
  • Height: 550 ft (168 m)
  • Length: 5,223 feet (1,592 m)
  • Width (crest): 30 ft (9 m)
  • Width (base): 500 ft (152 m)
  • Dam volume: 11,975,520 cu yd (9,155,942 m³)

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Data from: en.wikipedia.org