Wisconsin Dams
968 dams tracked by the National Inventory of Dams
Total Dams
968
High Hazard
180
18.6%
Poor / Unsatisfactory
63
Average Age
89 yrs
Hazard Classification
High180 (18.6%)
Significant84 (8.7%)
Low704 (72.7%)
Condition Assessment
Satisfactory239 (24.7%)
Fair509 (52.6%)
Poor / Unsatisfactory63 (6.5%)
Not Rated157 (16.2%)
Federal
65
State
127
Local
407
Private
280
Tallest Dams
- Superior Falls138 ft
- Eau Galle Dam127 ft
- Flambeau 92 ft
- Hatfield 92 ft
- Plum Creek 288 ft
High Hazard Dams
- Eau Galle DamHigh
- Flambeau High
- Hatfield High
- Plum Creek 2High
- High Falls High
Poor Condition Dams
- West Fork Kickapoo 1Unsatisfactory
- DoyleUnsatisfactory
- Coon Creek 21Unsatisfactory
- Rock FallsPoor
- Garden Valley 10Unsatisfactory
All Dams in Wisconsin
Showing 626–650 of 704
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Trout Lake Juneau County | 16 | 1928 | Low | Poor |
| Trows Jackson County | 26 | 1942 | Low | Fair |
| Trump Lake Jackson County | 33 | 1969 | Low | Poor |
| Turtle Lake Vilas County | 8 | 1948 | Low | Fair |
| Turtle Valley Central Phase Walworth County | 10 | — | Low | Fair |
| Turtle Valley Phase Iii Walworth County | 13 | — | Low | Not Rated |
| Twin Lakes Vilas County | 10 | 1908 | Low | Satisfactory |
| Twin Parks 10 Iowa County | 32 | 1966 | Low | Fair |
| Twin Parks 12 Iowa County | 37 | 1968 | Low | Fair |
| Twin Parks 3 Iowa County | 33 | 1965 | Low | Fair |
| Twin Parks 4 Iowa County | 31 | 1965 | Low | Fair |
| Twin Parks 6 Iowa County | 26 | 1968 | Low | Fair |
| Twin Parks 8 Iowa County | 33 | 1963 | Low | Fair |
| Twin Parks 9 Iowa County | 33 | 1963 | Low | Fair |
| Uihlein Ashland County | 18 | 1974 | Low | Fair |
| Upper Barr Price County | 13 | — | Low | Fair |
| Upper Dam Price County | 18 | 1916 | Low | Satisfactory |
| Upper Dam Shawano County | 35 | 1883 | Low | Satisfactory |
| Upper Eau Claire Lake Bayfield County | 6 | 1950 | Low | Fair |
| Upper Flowage Washburn County | 12 | 1915 | Low | Not Rated |
| Upper Horicon Dodge County | 8 | 1945 | Low | Not Rated |
| Upper Mayville Dodge County | 15 | 1848 | Low | Satisfactory |
| Upper Post Lake Langlade County | 10 | 1932 | Low | Fair |
| Upper Steve Creek Taylor County | 13 | 1963 | Low | Not Rated |
| Upper Trappe River Flowage Langlade County | 12 | 1969 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.