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Contents. Columbia River. For rivers in Colombia, see List of rivers of Colombia. The Columbia River (Upper Chinook: Wimahl or Wimal; Sahaptin: Nch’i-Wàna or Nchi wana; Sinixt dialect swah'netk'qhu) is the largest river in the Pacific Northwest region of North America. [ 14 ] The river forms in the Rocky Mountains of British Columbia, Canada.
Installed capacity. 623.7 MW [2] Annual generation. 2,600 GWh. Rock Island Dam is a hydroelectric dam on the Columbia River, in the U.S. state of Washington. Chelan County Public Utility District 's Rock Island Dam and Hydro Project was the first dam to span the Columbia, having been built from 1929 to 1933. It is located near the geographical ...
West Kettle River (British Columbia) Pend Oreille River (British Columbia, Washington, Idaho; see below for sub-tributaries) Kootenay River (British Columbia, Idaho, Montana; see below for sub-tributaries) Hugh Keenleyside Dam and Arrow Lakes (British Columbia) Whatshan River (British Columbia)
The Columbia River and its tributaries generate 40% of U.S. hydropower, irrigate $8 billion in agriculture products and move 42 million tons of cargo annually, according to the Biden administration.
The river flows through Canada and the United States. Almost all of these rapids are now submerged in the reservoirs of dams. The list is not exhaustive; there were numerous minor rapids and riffles, many of which were never named. Map of the Columbia drainage Basin with the Columbia River highlighted and showing the major tributaries
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 two powerhouses. The third powerhouse ("Nat"), completed in 1974 to increase energy production, makes Grand Coulee the ...
Libby Dam. Libby Dam is a concrete gravity dam in the northwestern United States, on the Kootenai River in northwestern Montana. Dedicated on August 24, 1975,[2][3][4] it is west of the continental divide, seventeen miles (27 km) upstream from the town of Libby. At 422 feet (129 m) in height and a length of 3,055 feet (931 m), Libby Dam created ...
The Columbia Basin. The Columbia River drainage basin is the drainage basin of the Columbia River in the Pacific Northwest region of North America.It covers 668,000 km 2 or 258,000 sq mi. [1] In common usage, the term often refers to a smaller area, generally the portion of the drainage basin that lies within eastern Washington.
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