U.P.’s Black River Lake Boating Access Site Closed Indefinitely

The Michigan Department of Natural Resources has closed the boating access site at Black River Lake in Gogebic County indefinitely, and the public is advised to avoid the area and the soft soils that have been newly exposed, due to draining of water from the impoundment.
Since June 28, the DNR has been receiving reports of extremely low water levels within Black River Lake. This impoundment, approximately 10 miles southeast of Ironwood, was maintained by a water control structure on the lake’s north side. During an on-site investigation, DNR Fisheries Division staff determined that the water control structure experienced a partial failure, with one of the lower stoplogs breaking, causing the impoundment to slowly drain.
“Upon inspecting the dam, it appeared the lower stoplog(s) failed, and that was the cause of the drainage. Upon further investigation of the downstream area below the dam, sediment was not observed to have washed into the floodplain or caused erosion of the streambanks, indicating that this was not a quick flooding event,” said Jennifer Johnson, DNR fisheries biologist. “During the site visit, I spoke with locals who described the impoundment as being 10-15 feet low over the course of three weeks. It is likely that the stoplog(s) completely failed around June 24 or 25, which coincided with a heavy rainstorm.” Read more









