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 1226–1250 of 1,283
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Barber Creek 31-11-4876 Campbell County | 41 | 2008 | Low | Fair |
| Baker No. 2 Weston County | 26 | 1958 | Low | Fair |
| Baker No. 1 Weston County | 33 | 1956 | Low | Fair |
| Bagley Brothers Platte County | 35 | 1941 | Low | Not Rated |
| Badura No. 1 Park County | 21 | 1964 | Low | Poor |
| Bad Land No. 2 Niobrara County | 24 | 1965 | Low | Poor |
| Bad Land No. 1 Niobrara County | 18 | 1962 | Low | Poor |
| B-2 Detention Goshen County | 58 | 1962 | Low | Fair |
| Auzqui No. 2 Sheridan County | 31 | 1953 | Low | Fair |
| Auzqui No. 1 Sheridan County | 36 | 1953 | Low | Fair |
| Austin No. 1 Johnson County | 22 | 1991 | Low | Poor |
| Atlantic Rim Carbon County | 32 | 1981 | Low | Fair |
| Artesian Upper Campbell County | 21 | 1951 | Low | Fair |
| Artesian Lower Campbell County | 32 | 1951 | Low | Fair |
| Arrowhead Crook County | 23 | 1956 | Low | Poor |
| Arnold Goshen County | 33 | 1968 | Low | Fair |
| Arch Johnson County | 30 | 1949 | Low | Fair |
| A & P No. 1 Converse County | 27 | 1954 | Low | Fair |
| Antwerp Sheridan County | 20 | 1902 | Low | Poor |
| Antelope Springs Dam Fremont County | 21 | 1940 | Low | Not Rated |
| Antelope Dam Natrona County | 25 | 1956 | Low | Fair |
| Antelope Carbon County | 16 | 1940 | Low | Fair |
| Antelope Carbon County | 18 | 1945 | Low | Fair |
| Annis Natrona County | 25 | 1948 | Low | Fair |
| Anne Marie #1 Carbon County | 28 | 1996 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.