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 676–700 of 1,490
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lox Natrona County | 35 | 1966 | Low | Poor |
| Lower Sunshine Park County | 162 | 1972 | High | Fair |
| Lower Spicer Natrona County | 17 | 1951 | Significant | Poor |
| Lower Snake Draw (4th Enl.) Sweetwater County | 85 | 1998 | Significant | Fair |
| Lower Morgan Campbell County | 88 | 2001 | Significant | Not Rated |
| Lower Hackett Dam Natrona County | 37 | 1967 | Low | Unsatisfactory |
| Lower Goose Pond Fremont County | 8 | — | Low | Not Rated |
| Lower Afton Lincoln County | 30 | 1942 | Low | Satisfactory |
| Lowe No. 1 Sheridan County | 25 | 1954 | Low | Poor |
| Low Carbon County | 20 | 1946 | Low | Fair |
| Love Ex 11-14 Campbell County | 35 | 1952 | Low | Fair |
| Louis Crook County | 26 | 1959 | Low | Poor |
| Lost Natrona County | 29 | 1966 | Low | Fair |
| Loren Ramsey Fish Platte County | 29 | 1972 | Low | Poor |
| Long Pond Carbon County | 19 | 1947 | Low | Fair |
| Longeley Niobrara County | 22 | 1972 | Low | Poor |
| Lone Tree No. 2 Albany County | 7 | 1909 | Low | Fair |
| Lone Tree Albany County | 35 | 1947 | Low | Poor |
| Lone Tree Crook County | 17 | 1955 | Low | Poor |
| Logan Jct. Detention Dam Fremont County | 23 | 1952 | Low | Unsatisfactory |
| Loco Creek Carbon County | 48 | 2004 | Low | Fair |
| Little Willow Goshen County | 10 | 1906 | Low | Poor |
| Little Sage Creek Reservoir Carbon County | 26 | 1969 | High | Satisfactory |
| Little Robber Det. Dam X Carbon County | 48 | 1953 | High | Poor |
| Little Red No. 2 Sheridan County | 36 | 1966 | Low | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.