The Michigan Department of Natural Resources said on Apr. 8 that water levels at the Cheboygan Dam and Lock Complex rose slightly overnight, following ongoing monitoring of spring runoff in the area.
Officials have been measuring water levels at Mullett Lake, along the Cheboygan River, and at the dam for several days. The department reported that as of today, the water level at the dam is 21 inches below the top, which is a half-inch increase since Tuesday.
“We are watching the water level 24 hours a day, with the dam gates fully open,” said Rich Hill, DNR Gaylord District supervisor. “We are working closely with local, state and federal officials to keep abreast of any changing conditions.”
Recent highwater conditions have been caused by spring runoff combined with a significant snowstorm and rainfall. The weather forecast predicts more rain or snow for today but expects sunnier skies on Thursday.
A comprehensive safety plan has been prepared in case water levels continue to rise significantly. Residents are encouraged to sign up for local alerts to stay informed about updates and emergency information. If water rises to within 12 inches of topping the dam, authorities will activate an Emergency Action Plan involving local emergency services.
The outflow from Mullett Lake and Black River feeds into the Cheboygan River behind the dam before it flows through Cheboygan town toward Lake Huron. The complex includes both public infrastructure—the lock and dam—and a privately owned hydroelectric facility regulated by federal authorities. The watershed covers about 1,455 square miles.



