Boaters on Lake Manawa will be restricted to operating their boats at no-wake speed, which is roughly 5 mph, while the lake level is above flood stage.
The Lake Manawa no-wake restriction, effective immediately, will remain in place until the water level in Indian Creek and the Missouri River fall below flood stage and allow the lake level to return to normal.
The water level on Lake Manawa is 12 inches above crest, and the potential exists for shoreline erosion and damage to docks as well as boater safety issues associated with flood-related debris floating just under the water surface.
The no-wake declaration will be in effect until further notice.
Brian Smith, supervisor for the Iowa Department of Natural Resources Law Enforcement Bureau, said his lake patrol officers will advise boaters of the no-wake declaration.
"Lake Manawa remains open for recreation, the only change is placing the restriction on boaters operating at no-wake speed," Smith said.
Lake Manawa was last under a no-wake restriction in 2011.