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 851–875 of 968
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Theresa Marsh Dodge County | 10 | 1968 | Low | Fair |
| Thiensville Ozaukee County | 13 | 1842 | Low | Fair |
| Thornapple Rusk County | 14 | 1909 | Low | Satisfactory |
| Tiffany Lake Taylor County | 16 | — | Low | Fair |
| Tiger Cat Sawyer County | 18 | 1937 | Significant | Fair |
| Tilden Chippewa County | 16 | 1886 | Low | Not Rated |
| Tilleda Shawano County | 17 | 1910 | High | Satisfactory |
| Tobola Clark County | 23 | 1967 | Low | Fair |
| Tomahawk Lincoln County | 27 | 1938 | High | Satisfactory |
| Tomah Lake Monroe County | 16 | 1936 | High | Satisfactory |
| Totagatic Sawyer County | 20 | 1936 | Low | Not Rated |
| Totagatic Wildlife Washburn County | 9 | 1952 | Low | Fair |
| Town Corners Wildlife Flowage Price County | 10 | 1966 | Low | Fair |
| Trego Washburn County | 39 | 1927 | Significant | Fair |
| Tri Creek Number One Monroe County | 57 | 1976 | High | Satisfactory |
| Trout Lake Juneau County | 16 | 1928 | Low | Poor |
| Trows Jackson County | 26 | 1942 | Low | Fair |
| Trump Lake Jackson County | 33 | 1969 | Low | Poor |
| Turtle-Flambeau Iron County | 26 | 1926 | High | Satisfactory |
| 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 |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.