The Hanford Reach is a free-flowing section of the

Columbia River The Columbia River ( Upper Chinook: ' or '; Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia ...

, around long, in eastern

Washington Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered o ...

state. It is named after a large northward bend in the river's otherwise southbound course. Hanford Reach is the only section of the Columbia in the United States that is not tidal nor part of a reservoir, excluding a short reach between the Canada–United States border and the upper end of

Franklin D. Roosevelt Lake Franklin D. Roosevelt Lake (also called Lake Roosevelt) is the reservoir created in 1941 by the impoundment of the Columbia River by the Grand Coulee Dam in Washington state. It is named for Franklin D. Roosevelt, who was president during the con ...

, the reservoir of

Grand Coulee Dam 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 powerho ...

. Much of the Hanford Reach flows through the

Hanford Site The Hanford Site is a decommissioned nuclear production complex operated by the United States federal government on the Columbia River in Benton County in the U.S. state of Washington. The site has been known by many names, including SiteW a ...

, a nuclear production facility established during World War II. It is also the site of the

Hanford Reach National Monument The Hanford Reach National Monument is a national monument in the U.S. state of Washington. It was created in 2000, mostly from the former security buffer surrounding the Hanford Nuclear Reservation. The area has been untouched by development or ...

, created from the original protection area around the Hanford Site. Upstream of the Hanford Reach is

Priest Rapids Dam Priest Rapids Dam is a hydroelectric, concrete gravity dam; located on the Columbia River, between the Yakima Firing Range and the Hanford Nuclear Reservation, and bridges Yakima County and Grant County, in the U.S. state of Washington. The d ...

and downstream is the McNary Dam, which also impounds the last stretch of the

Snake River The Snake River is a major river of the greater Pacific Northwest region in the United States. At long, it is the largest tributary of the Columbia River, in turn, the largest North American river that empties into the Pacific Ocean. The Snake ...

, the largest tributary of the Columbia. The Hanford Reach includes the still extant Coyote Rapids and supports over forty species of fish including significant numbers of spawning fall

chinook salmon The Chinook salmon (''Oncorhynchus tshawytscha'') is the largest and most valuable species of Pacific salmon in North America, as well as the largest in the genus '' Oncorhynchus''. Its common name is derived from the Chinookan peoples. Other ...

References

External links

* Columbia River Landforms of Benton County, Washington {{BentonCountyWA-geo-stub

See also

References

External links