JOHNSTON, Iowa (AP) — The U.S. Army Corps of Engineers says the extreme cold has added ice to Saylorville Lake but also has created some instability.
The corps says the cold has reduced inflows to the reservoir northwest of Des Moines, so the water level below the ice can drop up to 2 inches a day. Air pockets that form beneath the ice increase the risk of the ice cracking or breaking.
The corps also says that as the ice shelf begins to drop, it can cause a dangerous slope at the shore, making it hard to get off the ice.
Contact the Saylorville Lake Administration Office at 515-276-4656 for more information on lake levels, outflows and inflows, or go online to http://1.usa.gov/1dpS1js .