Does the plan lower the highest and raise the lowest Michigan-Huron levels?
- This is the third of nine Study Board decision criteria used in the evaluation of Lake Superior regulation plans. Reducing the highest levels of Lake Michigan-Huron slows erosion and reduces flooding and shoreline protection damages. Raising the lowest levels helps provide easier access for commercial shipping and recreational boating. Homeowners also report that lower levels reduce property values of near-lake homes. However, it should be noted that the ability to control Lake Michigan-Huron using Lake Superior is limited. Lake Michigan-Huron levels are driven primarily by NBS of the lake’s larger watershed area and the discharge of water into Lake St. Clair. Therefore, changes in the releases from Lake Superior tend to have a much larger effect on Lake Superior than on the receiving lakes downstream.