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 76–100 of 100
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Sawmill Sheridan County | 38 | 1972 | High | Fair |
| Seminoe Dam Carbon County | 295 | 1938 | High | Not Available |
| Shell Creek Big Horn County | 50 | 1957 | High | Not Rated |
| Shoshone Lake Fremont County | 46 | 1959 | High | Fair |
| Sibley Sheridan County | 35 | 1938 | High | Not Rated |
| Silver Lake Sublette County | 32 | 1953 | High | Poor |
| Sixty Seven Sublette County | 32 | 1942 | High | Fair |
| Snyder Creek Det Dam X Fremont County | 38 | 2003 | High | Unsatisfactory |
| South Spring Creek Lake Carbon County | 33 | 1917 | High | Fair |
| Spring Canyon Goshen County | 58 | 1979 | High | Fair |
| Sulphur Creek Uinta County | 85 | 1964 | High | Fair |
| Teton Reservoir Carbon County | 33 | 1966 | High | Fair |
| Tie Hack Johnson County | 110 | 1997 | High | Fair |
| Twin Lakes No. 1 Sheridan County | 91 | 1998 | High | Not Rated |
| Upper Delta (North Offset Dam & West Offset Dam) Sweetwater County | 40 | 2013 | High | Fair |
| Upper Sunshine Park County | 160 | 1942 | High | Fair |
| Upper Van Tassell Laramie County | 98 | 1932 | High | Poor |
| Viva Naughton Lincoln County | 90 | 1967 | High | Fair |
| Wagner Sheridan County | 58 | 1973 | High | Fair |
| Washakie Fremont County | 93 | 1935 | High | Satisfactory |
| Washington Memorial Crook County | 24 | 1987 | High | Fair |
| Westside Campbell County | 23 | 2012 | High | Fair |
| Willow Park Johnson County | 60 | 1959 | High | Not Rated |
| Windy Draw Sheridan County | 59 | 1965 | High | Fair |
| Woodruff Narrows Uinta County | 68 | 1962 | High | Fair |
PreviousPage 4 of 4
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.