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Floodwaters to Top Coralville Spillway

Updated: Thursday, May 30 2013, 09:38 AM CDT
IOWA CITY, IA (CBS 2/FOX 28) -- For just the 3rd time in its history, the Coralville Dam will see water go over the spillway.  The Army Corps of Engineers is slowing increasing the flow of water out of the lake, sending floodwater downstream to Coralville and Iowa City. 
On June 4th, the Corps will ramp up the outflow to 20,000 cubic feet per second.  On that same day, they project the spillway to be topped by up to a foot of water.  That would increase the total flow to 22,500cfs.
Before then, the outflow of water will be slowly ramped up.  Today they will increase the flow to 14,000cfs and tomorrow it will go up to 17,000cfs.
The highest level on the river is projected to hit sometime around June 19th.
If the spillway is topped, it would be the 3rd time that's happened.  The first came in 1993 and the second in 2008.Floodwaters to Top Coralville Spillway

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