Authorities warn of unstable ice on Coralville Reservoir - KWWL - Eastern Iowa Breaking News, Weather, Closings

Authorities warn of unstable ice on Coralville Reservoir

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CORALVILLE (KWWL) - The U.S. Army Corps of Engineers is warning of extremely dangerous conditions on the Coralville Reservoir.

The Corps says while extreme cold has added ice to Coralville Lake, it has also caused the inflow of water into the lake to be less than the minimum outflow -- creating an air pocket between the ice and water.

Now, the Corps says the lake level is about a foot lower than when the ice started forming last month.

Ice unsupported by lake water is at risk of cracking, breaking or giving away at any time.

In addition, the Corps says as the ice shelf begins to drop, it can cause a dangerous slope along the shoreline, making it hard to get off the ice.

Due to these conditions, it is extremely unsafe to venture onto the ice.

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