Dams in Gratiot County, Michigan
7Total Dams
0High Hazard
3Significant
Dam Safety in Gratiot County, Michigan
Gratiot County has 7 dams tracked in the National Inventory of Dams. Another 3 carry a significant hazard classification. Currently, 1 dams have a condition assessment of poor or unsatisfactory.
The average dam in Gratiot County is 71 years old. The most common purpose is recreation. The tallest dam is Rainbow Lake Dam at 46 ft.
Explore more: Oldest dams in Michigan · Tallest dams · High risk dams · Largest reservoirs
Data note: Hazard potential describes the consequences if a dam failed; it does not predict the likelihood of failure. Inspection, condition, and emergency-plan fields can be incomplete or delayed. Check state dam-safety officials and local emergency managers for official guidance.
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Rainbow Lake Dam | Significant | Satisfactory | 46 | Recreation | 1962 |
| St Louis | Significant | Satisfactory | 21 | Hydroelectric | 1901 |
| State Street Dam | Significant | Satisfactory | 18 | Water Supply | 1938 |
| Little Rainbow Lake Dam | Low | Satisfactory | 33 | Recreation | 1972 |
| Sadilek Dam | Low | Not Rated | 12 | Recreation | 1960 |
| Milli-ander Pond Dam | Low | Poor | 7 | Recreation | 1983 |
| Gratiot-saginaw Sga Impoundment #1 Dam | Low | Fair | 7 | Other | 1963 |