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Proposals to remove underused dams and restore fish habitats emerged in the early 21st century with support from the state's Native American tribes; the first major dam removal was the Condit Dam near White Salmon in 2011, which was followed by two dams on the Elwha River near Port Angeles. As of 2024, 39 dams in Washington have been removed. [2]
Without Coulee Dam and the greater Columbia Basin Project, much of North Central Washington State would be too arid for cultivation. According to the federal Bureau of Reclamation the yearly value of the Columbia Basin Project is $630 million in irrigated crops, $950 million in power production, $20 million in flood damage prevention, and $50 ...
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.
The Dalles Lock and Dam is a concrete-gravity run-of-the-river dam spanning the Columbia River, two miles (3.2 km) east of the city of The Dalles, Oregon, United States. [2] It joins Wasco County, Oregon , with Klickitat County, Washington , 192 miles (309 km) upriver from the mouth of the Columbia near Astoria, Oregon .
It was created by Mayfield Dam on the Cowlitz River, one of the dams in the Columbia River watershed. The Mayfield Dam was constructed in 1963 as a concrete arch and gravity dam. At 250 feet (76 m) high and capable of generating 162 megawatts, it supplies Tacoma Power with a large percentage of its entire hydroelectric power supply, second only ...
The location of the state of Washington in the United States of America Grand Coulee Dam has long been emblematic of infrastructure in the State of Washington, and is one of two dams mentioned in the official state folk song, Roll On, Columbia, Roll On". But its scale has been eclipsed by several 21st century infrastructure projects.
Howard A. Hanson Dam is an earthen embankment dam on the Green River, 21 miles (34 km) east of Auburn, Washington. The dam was completed in 1961 and its primary purpose is flood control along with water supply for Tacoma, Washington .
Lake Pateros is a reservoir on the Columbia River in the U.S. state of Washington.It was created in 1967 with the construction of Wells Dam.The reservoir lies almost entirely in Douglas and Okanogan counties, although the dam itself lies partially in the easternmost portion of Chelan County.