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 51–75 of 1,283
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| B-2 Detention Goshen County | 58 | 1962 | Low | Fair |
| Bad Land No. 1 Niobrara County | 18 | 1962 | Low | Poor |
| Bad Land No. 2 Niobrara County | 24 | 1965 | Low | Poor |
| Badura No. 1 Park County | 21 | 1964 | Low | Poor |
| Bagley Brothers Platte County | 35 | 1941 | Low | Not Rated |
| Baker No. 1 Weston County | 33 | 1956 | Low | Fair |
| Baker No. 2 Weston County | 26 | 1958 | Low | Fair |
| Barber Creek 31-11-4876 Campbell County | 41 | 2008 | Low | Fair |
| Barber Creek 33-12-4876 Campbell County | 44 | 2007 | Low | Fair |
| Barber Creek 34-35-4976 Campbell County | 40 | 2008 | Low | Fair |
| Barber Creek 44-1-4876 Campbell County | 41 | 2008 | Low | Fair |
| Barker-Hutton State 13-7-56-83 Sheridan County | 17 | 2009 | Low | Fair |
| Barlow No. 1 Campbell County | 24 | 1956 | Low | Fair |
| Bar M No. 1 Albany County | 34 | 1961 | Low | Not Rated |
| Bar M No. 2 Albany County | 43 | 1966 | Low | Not Rated |
| Bar M No. 3 Albany County | 30 | 1964 | Low | Not Rated |
| Barnds Stock Campbell County | 23 | 1980 | Low | Fair |
| Barrel Floodwater Detention Weston County | 36 | 1973 | Low | Fair |
| Barton Crook County | 20 | 1968 | Low | Poor |
| Basch Johnson County | 36 | 1960 | Low | Poor |
| Basin Converse County | 25 | 1974 | Low | Fair |
| Basin No. 1 Crook County | 20 | 1958 | Low | Poor |
| Basin Reservoir Sublette County | 28 | — | Low | Fair |
| Bass Johnson County | 28 | 1969 | Low | Fair |
| Bass Pond Johnson County | 31 | 1910 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.