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 301–325 of 968
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Goodman Marinette County | 13 | 1934 | Low | Not Rated |
| Gooseville Sheboygan County | 9 | 1855 | Low | Not Rated |
| Grafton Ozaukee County | 20 | 1918 | Significant | Fair |
| Grandfather Falls Lincoln County | 32 | 1906 | High | Satisfactory |
| Grandmother Lincoln County | 39 | 1923 | High | Fair |
| Grand River Marsh Marquette County | 16 | 1969 | Low | Fair |
| Grethe Walworth County | 14 | 1969 | Low | Fair |
| Grettum West Bypass Structure Burnett County | 11 | — | Low | Not Rated |
| Grosse Marinette County | 18 | 1970 | Low | Fair |
| Guidera Polk County | 20 | — | Low | Fair |
| Haglund,Dennis Pierce County | 30 | 1972 | Low | Not Rated |
| Haldeman Monroe County | 28 | 1971 | Low | Fair |
| Half Moon Lake Eau Claire County | 16 | 1977 | Low | Fair |
| Halls Creek Wildlife Flowage Florence County | 15 | 1978 | Low | Fair |
| Halverson Iowa County | 37 | — | Low | Unsatisfactory |
| Hamm Juneau County | 9 | 1968 | Low | Not Rated |
| Hancock Lake Oneida County | 11 | 1930 | Low | Fair |
| Hanson Iron County | 23 | 1972 | Low | Fair |
| Hansons Chippewa County | 16 | 1870 | Low | Fair |
| Harrison Lincoln County | 12 | 1939 | Low | Fair |
| Harrisville Marquette County | 15 | 1853 | High | Satisfactory |
| Hartford Washington County | 14 | 1844 | Low | Fair |
| Hartman Creek Number Five Waupaca County | 14 | 1931 | Low | Not Rated |
| Hartman Creek Number One Waupaca County | 11 | 1939 | Low | Not Rated |
| Hatchery Marinette County | 12 | 1890 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.