US Army Corps of Engineers, Friends of Coralville to remove water from Coralville Lake and prevent flooding

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New updates to the Coralville Water Control Plan will ensure that flooding does not increase in Coralville Lake.


The United States Army Corps of Engineers and Friends of Coralville Lake will pump water from the lake to reduce flooding caused by increased sedimentation levels.

The Friends of Coralville Lake are trying to stop the increasing levels of sedimentation building up on the bottom of the lake. Sedimentation affects wildlife management, conservation storage and drought management, said Jon Kounkel, president of Friends of Coralville Lake.

“We’ve been working for the past few years to try to figure out how we can help impact the lake itself because there’s really young, Corps of Engineers using it for flood and drought control,” said Kounkel said.

The latest update to the Coralville Water Control Plan, which addresses frequent flooding and increased sedimentation, was approved in March and is a collaboration between the US Corps of Engineers and Friends of the Lake Coralville. The project is funded by the Johnson County Board of Supervisors.

“The lake is tilting at a fairly rapid rate to where at this time the lake it only has about the army corps estimates it has about 20 to 30 years left of life before the lake is sorted out to about three feet deep,” Kounkel says.

Iowa City Parks and Recreation is not involved in the plan, Iowa City Parks and Recreation Director Juli Seydell Johnson said.

Seydell Johnson said citizens have expressed concern over declining water levels in Coralville Lake.

The US Corps of Engineers approached Friends of Coralville Lake a few years ago to help with the plan, Kounkel said. The plan was last updated in 2001 and defines how and when water is stored and released.

“We’re a nonprofit organization that the Army Corps of Engineers helped start about six years or so ago, something like that,” Kounkel said.

Coralville Lake is also known as Coralville Dam, which was built to prevent flood damage and provide water if the Iowa River experiences a drought.

The control plan is funded by the Johnson County Board of Supervisors. This year’s projects under the plan will be funded by money distributed by the oversight board last year.

“The Johnson County Board of Supervisors provided us with funding to initiate an action plan that we just launched in the first quarter and just completed,” Kounkel said.

The plan was approved after hearing public feedback and gathering data, said Dee Goldman, operations project manager for the Army Corps of Engineers at Coralville Lake.

“We met with the public, we had three or four public meetings where we gathered information, gathered data, gathered concerns, and then we use all of that to formulate what our new plan should look like,” he said. he declares.

One of the main goals of the plan is to ensure there is no increase in flood damage to the lake, Goldman said.

“In that, we’re able to release some of that water a little earlier a little faster, which hopefully keeps us from getting into those higher elevations and looking at our spillway discharges quite often. “, did he declare. “I think the real benefit is in reducing flood damage.”

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