Water levels in Lake Michigan and Lake Huron, although constantly in flux, are showing a steady decrease, experts say.
Lake levels can rise or drop as much as 6 feet in only a matter of years. However, concern is increasing that the overall level of the lakes is on a decline, the Milwaukee Journal-Sentinel reported.
Much of the decline is blamed on the Army Corps of Engineer`s 1960s dredging of a shipping channel in the St. Clair River. Ongoing erosion in the St. Clair River may be the cause of a deeper lakebed and expanding drain holes.