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 426–450 of 1,490
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Enl. Willow Creek No. 2 Albany County | 42 | 1981 | Low | Fair |
| Enl. Windy Point Washakie County | 30 | — | Low | Poor |
| Enterprise Fremont County | 29 | 1940 | High | Fair |
| Erramouspe Sublette County | 15 | 1957 | Low | Fair |
| Eshom Platte County | 28 | 1947 | Low | Poor |
| Ethel #3 Sheridan County | 28 | 2008 | Low | Poor |
| Ethyl No. 2 Johnson County | 25 | 1969 | Low | Fair |
| Ewen Big Horn County | 40 | 1946 | Low | Poor |
| Ewen - Pence Gulch Big Horn County | 30 | 1953 | Low | Poor |
| Experiment Station Laramie County | 23 | 1932 | Low | Fair |
| Fairview Extension Big Horn County | 37 | 1972 | Significant | Not Rated |
| Falxa No. 1 Johnson County | 25 | 1958 | Low | Poor |
| F.C.R. Detention Campbell County | 20 | 1968 | Low | Fair |
| Feldspar Johnson County | 43 | 2009 | Low | Fair |
| Fgd Effluent #4 Lincoln County | 63 | 2010 | Significant | Fair |
| Fgd Effluent Pond #5 Lincoln County | 58 | 2018 | Significant | Satisfactory |
| Fiddlers Lake Fremont County | 8 | 1936 | Low | Not Rated |
| Field Weston County | 20 | 1958 | Low | Poor |
| Field 9-207-5 Weston County | 34 | 1965 | Low | Not Rated |
| Fields Niobrara County | 25 | 1953 | Low | Poor |
| Finley Carbon County | 30 | 1977 | Low | Poor |
| First Enl. Joe Budd Sublette County | 19 | 1941 | Low | Fair |
| Fisher Johnson County | 24 | 1968 | Low | Poor |
| Fish Stockwater Johnson County | 44 | 1971 | Low | Fair |
| Fitzgerald Campbell County | 25 | 1944 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.