Corps Cancel Water Pulse Into Missouri RiverMarch 30, 2011
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A scheduled pulse of water into the Missouri River in March to benefit the endangered pallid sturgeon has been canceled. A natural pulse from the eastern South Dakota tributaries is occurring instead.
The melt of the extensive plains snowpack in eastern South Dakota has raised river levels well above the flow limits, eliminating the need for a two-day pulse.
Tributary streams in eastern South Dakota are well above flood stage and are forecast to remain high for the next several weeks. The magnitude of the March pulse was to be 5,000 cubic feet per second (cfs) minus the flow on the James River at just above its confluence with the Missouri River upstream of Sioux City.
Today's flow on the James River is nearly 25,000 cfs. It is expected to crest later this week, but remain high for the foreseeable future.
The Missouri River is above the downstream flow limits at all three locations: Omaha, Nebraska City and Kansas City.
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