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 301–325 of 543
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Indian Creek Carbon County | 28 | 1953 | Low | Poor |
| Iberlin Johnson County | 30 | 1951 | Low | Poor |
| Hutton 4-24-5684 Sheridan County | 18 | 2010 | Low | Poor |
| Huson Johnson County | 30 | 1968 | Low | Poor |
| Huntington Sheridan County | 22 | 1906 | Low | Poor |
| Hundred Springs Albany County | 14 | 1915 | Low | Poor |
| Hugh Mcdonald Platte County | 37 | 1949 | Low | Poor |
| Hughes Goshen County | 16 | 1904 | Low | Poor |
| Hudson Fremont County | 33 | 1913 | Low | Poor |
| Howell Weston County | 25 | 1946 | Low | Poor |
| Houston No. 1 Natrona County | 37 | 1954 | Low | Poor |
| Houston Crook County | 22 | 1966 | Low | Poor |
| House Weston County | 22 | 1970 | Low | Poor |
| Horsley Draw Stock Sheridan County | 23 | 1939 | Low | Poor |
| Horseshoe Big Horn County | 30 | 1969 | Low | Poor |
| Horse Creek Park County | 29 | 1973 | Low | Poor |
| Homestead Flat Detention Dam Fremont County | 24 | — | Low | Poor |
| Home Albany County | 20 | 1941 | Low | Poor |
| Holland Washakie County | 25 | 1960 | Low | Poor |
| Hoblit Niobrara County | 15 | 1972 | Low | Poor |
| Hiser Natrona County | 35 | 2005 | Low | Poor |
| Hirsig No. 4 Laramie County | 32 | 1974 | Low | Poor |
| Hirsig No. 2 Laramie County | 28 | 1960 | Low | Poor |
| Hirsig No. 1 Laramie County | 28 | 1954 | Low | Poor |
| Hillberry Washakie County | 26 | 1947 | Low | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.