Dams in Alpena County, Michigan
5Total Dams
3High Hazard
0Significant
Dam Safety in Alpena County, Michigan
Alpena County has 5 dams tracked in the National Inventory of Dams. Of these, 3 are classified as high hazard — meaning failure would probably cause loss of human life.
The average dam in Alpena County is 114 years old. The most common purpose is hydroelectric. The tallest dam is Norway Point at 43 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 |
|---|---|---|---|---|---|
| Norway Point | High | Fair | 43 | Hydroelectric | 1924 |
| Four Mile Dam | High | Satisfactory | 27 | Hydroelectric | 1902 |
| Ninth Street | High | Fair | 24 | Hydroelectric | 1910 |
| Upper South Dam | Low | Satisfactory | 20 | Hydroelectric | 1930 |
| Hubbard Lake Dam | Low | Not Rated | 11 | Hydroelectric | 1890 |