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Water Management Monthly News Release
Jan 9, 2008
OMAHA
– Cold temperatures formed an ice bridge on the Missouri River above
Sioux City, Iowa, on Dec.15, dropping river stages by 5 feet.
Releases from the main stem system of reservoirs were increased as
municipal and utility managers closely monitored their water
intakes.
With
a forecast for extremely cold temperatures, releases were increased
Dec. 9 from 12,000 cubic feet per second (cfs) to 14,000 cfs in
anticipation of river ice formation and associated downstream stage
reductions. By Dec. 15 an ice bridge had formed above Sioux City
and Gavins Point releases were further increased to 16,000 cfs to
keep downstream intakes operable.
Despite the increased releases, the ice bridge caused stages to
drop about 4 feet at Omaha and Nebraska City. Releases were
increased from several Army Corps of Engineers’ dams in the Kansas
River basin to help maintain stages at and below Kansas City.
Gavins Point releases were gradually reduced, beginning on Dec. 22,
as temperatures moderated and downstream Missouri River flows
returned to more normal levels.
View full-text news release here.
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