Mio Dam

Mio Dam is a hydro-electric dam located on the Au Sable River in Michigan capable of generating 4.96 MW of electric power. It was the 4th of 6 dams built by Consumers Power between 1906 and 1924 along the Au Sable River and is the furthest upstream of the six. The dam was completed in 1916. The Mio Hydroelectric Plant consists of an embankment on each side connected by a spillway. Located North of the spillway is the powerhouse and outdoor substation. Public access to Mio Pond is provided via a boat ramp maintained by Consumers Energy, and portage facilities are also provided allowing canoes and kayaks access to bypass the dam. Portage the dam on the right using the cement stairs then carry down a gravel road with a canoe slide on the down river side of the dam. The Mio Dam powerhouse continues to operate with the same turbines and generators that were installed over a century ago.