Wyoming Dams
1,490 dams tracked by the National Inventory of Dams
Total Dams
1,490
High Hazard
100
6.7%
Poor / Unsatisfactory
576
Average Age
62 yrs
Hazard Classification
High100 (6.7%)
Significant104 (7.0%)
Low1,283 (86.1%)
Condition Assessment
Satisfactory45 (3.0%)
Fair752 (50.5%)
Poor / Unsatisfactory576 (38.7%)
Not Rated117 (7.9%)
Federal
193
State
22
Local
82
Private
1,174
Tallest Dams
- Buffalo Bill Dam350 ft
- Seminoe Dam295 ft
- Alcova Dam265 ft
- Kortes Dam244 ft
- Boysen Dam220 ft
High Hazard Dams
- Buffalo Bill DamHigh
- Seminoe DamHigh
- Alcova DamHigh
- Kortes DamHigh
- Boysen DamHigh
Poor Condition Dams
- LapreleUnsatisfactory
- Upper Van TassellPoor
- Hawk SpringsPoor
- EastgatePoor
- BischoffPoor
All Dams in Wyoming
Showing 476–500 of 543
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Swan Creek No. 7 Park County | 22 | 1911 | Low | Poor |
| Swope No. 2 Niobrara County | 26 | 1953 | Low | Poor |
| T55nr76w19sesw Sheridan County | 24 | 1960 | Low | Poor |
| Tass Johnson County | 36 | 1965 | Low | Poor |
| Thoman Lincoln County | 25 | 1945 | Low | Poor |
| Thomas Park County | 56 | 1949 | Low | Poor |
| Thomas No. 1 Weston County | 22 | 1914 | Low | Poor |
| Thomas No. 2 Laramie County | 13 | 1956 | Low | Poor |
| Thomas No. 2 Weston County | 23 | 1948 | Low | Poor |
| Thompson Carbon County | 23 | 1923 | Low | Poor |
| Three T No 1 Dam Natrona County | 23 | 1960 | Low | Poor |
| Tibbs Campbell County | 30 | 1968 | Low | Poor |
| Tim White Wetlands Carbon County | 11 | 1994 | Low | Poor |
| Tipperary Uinta County | 24 | 1928 | Low | Poor |
| T. L. Crook County | 27 | 1970 | Low | Poor |
| Toothaker Carbon County | 35 | 1967 | Low | Poor |
| Total Station Johnson County | 33 | 2007 | Low | Poor |
| Trabing Johnson County | 28 | 1971 | Low | Poor |
| Trail Lake Control Dam Fremont County | 7 | 1947 | Low | Poor |
| Trail Lake Storage Dam Fremont County | 11 | 1947 | Low | Poor |
| Trail No. 1 Converse County | 31 | 1955 | Low | Poor |
| Treichler & Parsons Sheridan County | 27 | 1895 | Low | Poor |
| Turner No. 1 Niobrara County | 19 | 1969 | Low | Poor |
| Twiford Platte County | 35 | 1944 | Low | Poor |
| Twin Forks Weston County | 42 | 1959 | Low | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.