The Army Corps of Engineers will reduce the outflow from the Coralville Dam by the end of this week, according to a Johnson County Emergency Management press release sent Wednesday.
Outflow levels stood at 17,400 cubic feet per second Wednesday; that will be reduced to 14,000 on Friday and 10,000 on Saturday, the release said.
The Coralville Reservoir elevation stood at 704.16 feet above sea level at 9 p.m. Wednesday, or 0.88 feet lower than on Tuesday.
“Severe weather Wednesday should result in only minor impact to the Iowa River,” Maren Stoflet, a National Weather Service hydrologist, said in the release.
The access road across the Coralville Dam, as well as roads to the Tailwater East and Cottonwood campgrounds, reopened Tuesday, the release said. The Tailwater West campground remains closed, and a boating ban was still in effect on the Iowa River, tributaries, and flooded areas south of the dam on Wednesday.
Johnson County’s three mandatory evacuation orders remained in place as of Wednesday morning.