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The Chief Joseph Dam, a concrete gravity dam on the Columbia River near Bridgeport, Washington. As of 2023, the U.S. state of Washington has 1,242 dams that are able to impound 10 acre-feet or more of water and are regulated by the Washington State Department of Ecology (DOE).
Ross Dam is a 540-foot (160 m)-high, 1,300-foot (400 m)-long concrete thin arch dam across the Skagit River, forming Ross Lake.The dam is in Washington state, while Ross Lake extends 23 miles (37 km) north to British Columbia, Canada.
The cost of the dam was $13 million ($153,339,181 in 2006 dollars). [6] In 1961 a new Gorge High Dam was completed (300 feet (91 meters)) to replace the original Gorge Dam. This dam was featured in Alan Pakula's 1974 thriller The Parallax View, starring Warren Beatty. Construction of Diablo Dam was begun in 1927, five miles upstream from Gorge Dam.
A state of emergency was declared in a small city in Washington state this week after a warning system for a dam protecting the city from being flooded by a reservoir falsely went off a fourth ...
The Middle Fork Nooksack dam blocked fish on their way to spawn.
The Washington state proposals received little support from those further east, who feared the irrigation would result in more crops, depressing prices. [15] With President Coolidge opposed to the project, bills to appropriate money for surveys of the Grand Coulee site failed. [16] The dam site before construction, looking south
Planning for the Mossyrock Dam began in the 1940s but opposition from local fishers and Washington State's Fish and Wildlife Department delayed construction. During World War II, the city of Tacoma, Washington, purchased its electricity from the Bonneville Power Administration and from Seattle, with costs of up to $1 million/year.
Averaging a major dam every 72 miles (116 km), the rivers in the Columbia watershed combine to generate over 36,000 megawatts of power, with the majority coming on the main stem. Grand Coulee Dam is the largest producer of hydroelectric power in the United States, [ 1 ] generating 6,809 megawatts, over one-sixth of all power in the basin.