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Map showing locations of dams on the lower Snake and Columbia rivers. The lower Snake River dams have remained controversial since their construction, and in the 21st century there has been increased debate over potentially removing the dams.
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.
Tributaries and sub-tributaries are hierarchically listed in order from the mouth of the Columbia River upstream. Major dams and reservoir lakes are also noted. Map of the Columbia drainage Basin with the Columbia River highlighted and showing the major tributaries
Little Goose Lock and Dam is a hydroelectric, concrete, run-of-the-river dam in the northwest United States, on the lower Snake River in southeast Washington.At the dam, the river is the border between Columbia and Whitman counties; [2] it is nine miles (14 km) northeast of Starbuck and 25 miles (40 km) north of Dayton.
Hydroelectric Box Canyon Dam: Pend Oreille: Pend Oreille River: Box Canyon Reservoir: Gravity 90.0: 62 19 60,000 74,000 1956 Pend Oreille Public Utility District: Hydroelectric Chief Joseph Dam: Douglas/ Okanogan: Columbia River: Rock Island Pool: Gravity 2,620.0: 135 41 516,000 636,000 1979 U.S. Army Corps of Engineers: Hydroelectric Cle Elum ...
Four hydroelectric dams on the Snake River in Eastern Washington are proposed to be removed or breached to improve salmon runs. ... 39,200 rail cars and nearly 150,800 semi trucks a year would be ...
Lower Monumental Lock and Dam is a hydroelectric, concrete, run-of-the-river dam in the northwest United States. Located on the lower Snake River in southeast Washington, it bridges Franklin and Walla Walla counties; [3] [4] it is six miles (10 km) south of Kahlotus and 43 miles (70 km) north of Walla Walla.
The formation of a new federal task force focused on salmon in the Columbia River system has been met with concern by supporters of the Snake River hydroelectric dams in Eastern Washington.