DNR issues ice warning for aerated lakes

The Minnesota Department of Natural Resources (DNR) warns ice anglers, snowmobilers, skiers and other outdoor enthusiasts to use caution when going onto any lake covered or partially covered with ice, especially those that feature aeration systems.  Aeration systems are generally operated from the time lakes freeze until ice break-up in the spring. They help prevent winter-kill of fish, but they also create areas of open water and thin ice, which are significant hazards.

”Open water areas created by aeration systems can shift or change shapes depending on weather conditions,” said Marilyn Danks, DNR aquatic biologist. “Leaks may develop in air lines creating other areas of weak ice or open water.”

An aerated lake is posted with two types of signs: “Thin Ice” and “Warning” that is posted at all commonly used access points to the lake.  The signs warn people that an aeration system is in operation and to use extreme caution.

Anoka County lakes that likely have aeration systems in operation include: Centerville, Coon, Crooked, Golden, Ham, Martin, Moore (East), Peltier, Shack Eddy (Ramsey), and Spring.

For more information see the DNR press release or call DNR Information Center at 651-296-6157 or toll-free 888-646-6367.

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