Dams in Marathon County, Wisconsin
13Total Dams
3High Hazard
1Significant
Dam Safety in Marathon County, Wisconsin
Marathon County has 13 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. Another 1 carry a significant hazard classification. Currently, 3 dams have a condition assessment of poor or unsatisfactory.
The average dam in Marathon County is 78 years old. The most common purpose is recreation. The tallest dam is Eau Pleine at 45 ft.
Explore more: Oldest dams in Wisconsin · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Eau Pleine | High | Fair | 45 | Hydroelectric | 1937 |
| Rothschild | High | Poor | 27 | Hydroelectric | 1911 |
| Brock-clint | High | Not Rated | 23 | Recreation | 1967 |
| Winding Creek Rearing Pond | Significant | Fair | 27 | Recreation | 1970 |
| Wausau | Low | Satisfactory | 35 | Hydroelectric | 1930 |
| Spring Lake Campground | Low | Unsatisfactory | 27 | Recreation | 1974 |
| Mosinee | Low | Poor | 22 | Hydroelectric | 1910 |
| Winding Creek Diversion | Low | Fair | 15 | Recreation | 1993 |
| Kopp | Low | Not Rated | 15 | Other | 1967 |
| Brooks And Ross | Low | Satisfactory | 12 | Recreation | 1850 |
| Mcmillan Marsh | Low | Satisfactory | 11 | Water Supply | 1971 |
| Lloyd Keller | Low | Not Rated | 10 | Recreation | 1966 |
| Black Creek | Low | Fair | 6 | Recreation | 1968 |