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On May 3, using the planned procedures for the Birds Point-New Madrid Floodway, the Corps of Engineers blasted a two-mile (3 km) hole in the levee protecting the floodway, flooding 130,000 acres (530 km 2) of farmland in Mississippi County, Missouri, in an effort to save the town of Cairo, Illinois and the rest of the levee system, from record-breaking flood waters. [19]
The Mississippi River floods in April and May 2011 were among the largest and most damaging along the U.S. waterway in the past century, rivalling major floods in 1927 and 1993. In April 2011, two major storm systems dumped record rainfall on the Mississippi River watershed .
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.
A series of flood control reservoirs backed up by massive dams is a key factor driving the high water currently swelling the Missouri River. ... from Gavins Point to its mouth at the Mississippi ...
The gap also permits backwater flooding in the lower portion of the floodway. The floodway is designed to divert 550,000 cu ft/s (16,000 m 3 /s) from the Mississippi River during the "project design flood" hypothetical flood event. At this flow the level of the Mississippi River will drop 7 feet (2.1 m) at Cairo.
The same alert is in effect for Jackson, Mississippi, through 6 p.m. local time Thursday while Birmingham, Alabama, is under the watch through 12 a.m. local time Friday.
Several hundred-year flooding events occurred in 2011. In North America, the following events occurred on separate rivers and tributaries: 2011 Assiniboine River flood; 2011 Lake Champlain and Richelieu River floods; 2011 Manitoba floods (disambiguation) 2011 Mississippi River floods; 2011 Missouri River flood; 2011 Musselshell River flood ...
“The Mississippi Emergency Management Agency is working with county and state officials as the state braces for another round of severe storms, significant rain, and flash flooding” the press ...