Mio hydro-electric plant and moving downstream matches the flow entering the Mio pond upstream. Since then, automatic gate operators have been added to the generators for run-of-river controls that automatically adjust the unit governors to maintain the steady 29 feet head elevation, and therefore maintain run-of-river flow through the powerhouse. Consumers Energy, formerly named Consumers Power Company, regularly monitors and review water flows and water temperatures to maintain safe operation of the hydro dams doing a controlled release of excess water when necessary. Additionally, the United States Geological Survey (USGS) maintains 6 real-time water-level gages on the Au Sable River as a part of its National Streamflow Information Program. This information is fed to the National Weather Service's Advanced Hydrologic Prediction Service typically allowing the monitoring and reporting of water levels, flow speed, temperature, and water quality (oxygen) along the river. One of those gauges (ID: MIOM4) is located at the Mio Dam. "Condition C" is a term used to indicate high flow and a non-emergency, "Condition B" indicates a failure may eventually occur, whereas "Condition A" is where there is dam failure or imminent failure of the dam. Consumers Energy says Condition C is not a regular event on Au Sable River hydro dams. Local emergency management teams regularly train and have coordinated event plans should there ever be a "Condition A" event. In July 2020, the Emergency Management Coordinator for both Oscoda and Alcona counties was reported in the Alpena News newspaper as saying that failure of the Mio Dam could be the worst possible danger to the public because it is expected that a failure of the Mio Dam would cause the subsequent five other dams downriver to fail as well. References External links Hydro Review article regarding Mio Dam Consumers Energy video regarding the history of the Mio Dam USGS/NOAA Hydrologic Measurements at Mio Dam (downriver side of dam). Dams in Michigan Hydroelectric power plants in Michigan Buildings and structures in Oscoda County, Michigan Dams completed in 1916 Energy infrastructure completed in 1916 Consumers Energy dams 1916 establishments in Michigan