Saylorville Dam might not be overtopped
March 18, 2010
The latest model being used by Polk County Emergency Management and the US Army Corps of Engineers suggests that the emergency bladder atop the Saylorville Dam
should provide about a foot and a half of freeboard above the high water level expected at Saylorville, which could prevent flooding in the city of Des Moines. The city is developing temporary levees
as a secondary defense in case the reservoir is overtopped, but the complete set of efforts to upgrade flood protections in Des Moines isn't complete -- one major flood-control project just went to bids a few days ago
, which places construction months away.
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last revised March 2010