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Grand Coulee Dam
Dam
on
Franklin D Roosevelt Lake
,
Rufus Woods Lake
,
Columbia River
in
Lake Roosevelt NRA
,
Columbia Plateau
,
Colville Reservation
near
Coulee Dam
,
WA
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Length
0.6mi
On the Web
On Wikipedia
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 only 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.The proposal to build the dam was the focus of a bitter debate during the 1920s between two groups. One group wanted to irrigate the ancient Grand Coulee with a gravity canal while the other pursued a high dam and pumping scheme. The dam supporters won in 1933, but for fiscal reasons the initial design was for a "low dam" 290 feet (88 m) tall which would generate electricity…
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Dam
Waterbodies
Franklin D Roosevelt Lake
Lake
Rufus Woods Lake
Reservoir
Columbia River
River
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