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The flood, rather than being a short term event, was anticipated to last from June through August 2011 as a result of attempts by the Corps of Engineers to regulate the release of water through 850 miles (1,370 km) of open river from Garrison Dam in North Dakota to the confluence with the Mississippi River at St. Louis.
Missouri River Dams Key to 2011 Flood. newsstory. June 15, 2011 at 5:11 PM. ... In some reaches of the Missouri, the flood crest could rival highest historical crests.
The site chosen was on a stretch of the Missouri River flowing from south to north. The river bed at the site consisted of approximately 160 feet (49 m) of alluvial deposits, varying from coarse, pervious sands and gravels to impermeable clays. Beneath these deposits lay a thick (approximately 1,000 feet (300 m)) deposit of Bear Paw shale.
The 2011 Missouri River floods was a flooding event on the Missouri River in the United States, in May and June that year. The flooding was triggered by record snowfall in the Rocky Mountains of Montana and Wyoming along with near-record spring rainfall in central and eastern Montana.
Fort Randall Dam is a 2.03-mile-long (3 km) earthen dam which spans the Missouri River and impounds Lake Francis Case, the 11th-largest reservoir in the U.S. [2] The dam joins Gregory and Charles Mix counties, South Dakota, a distance of 880 river miles (1,416 km) upstream of St. Louis, Missouri, where the river joins the Mississippi River.
In the KC metro area, the Missouri River at Leavenworth was 20.6 feet as of 9 a.m. Tuesday, and minor flooding was occurring. The river is expected to crest at 22.5 feet Thursday evening and fall ...
The community is sandwiched between the Missouri River, which is approaching minor flooding, and the Big Sioux River, which is expected to rise 11 feet to crest Monday or early Tuesday at a record ...
Big Bend Dam is a major embankment rolled-earth dam on the Missouri River in Central South Dakota, United States, creating Lake Sharpe. The dam was constructed by the U.S. Army Corps of Engineers as part of the Pick-Sloan Plan for Missouri watershed development authorized by the Flood Control Act of 1944. Construction began in 1959 and the ...