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 1376–1400 of 1,490
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Big Donaldson Johnson County | 22 | 1973 | Low | Fair |
| Big Delaney Weston County | 25 | 1970 | Low | Poor |
| Big Dam Campbell County | 24 | — | Low | Fair |
| Big Chief Dam Natrona County | 32 | 1964 | Low | Unsatisfactory |
| Big Boy Johnson County | 33 | 1969 | Low | Poor |
| Betty No. 1 Converse County | 33 | 1956 | Low | Poor |
| Betty Crook County | 31 | 1957 | Low | Fair |
| Bethurem Big Horn County | 15 | 1918 | Low | Poor |
| Bergman Lake Teton County | 12 | 1953 | Low | Poor |
| Berger Crook County | 21 | 1954 | Low | Fair |
| Berdine Stock Albany County | 27 | 1989 | Low | Poor |
| Bentley Natrona County | 26 | 1960 | Low | Fair |
| Bench Canal Big Horn County | 35 | 1969 | Low | Fair |
| Ben Johnson County | 29 | 1960 | Low | Poor |
| Bell & Scranton No. 2 Albany County | 25 | 1947 | Low | Poor |
| Bell and Scranton No. 1 Albany County | 35 | 1966 | Significant | Fair |
| Bell Albany County | 38 | 1957 | Low | Poor |
| Belknap Creek No. 4 Park County | 23 | 1917 | Low | Fair |
| Belknap Creek No. 1 Park County | 20 | 1917 | Low | Poor |
| Belish Sheridan County | 28 | 1952 | Low | Poor |
| Beery Albany County | 13 | 1911 | Low | Poor |
| Bedstead No. 2 Washakie County | 26 | — | Low | Fair |
| Beck Lake Park County | 11 | 1970 | Significant | Fair |
| Beavers Carbon County | 17 | 1918 | Low | Poor |
| Beardsley No. 1 Niobrara County | 27 | 1962 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.