Columbia River
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Columbia River
Grand Coulee Dam is a gravity dam on the Columbia River in the U.S. state of Washington built to produce hydroelectric power and provide irrigation. It was constructed between 1933 and 1942, originally with two powerplants. The third Powerplant was completed in 1974 to increase its energy production. It is the largest electric power-producing facility in the United States[3] and one of the largest concrete structures in the world.[
trading education
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trading education
home defense
lynk2510- Posts : 393
Join date : 2011-02-03
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