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 151–175 of 1,283
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Broadbent No. 2 Uinta County | 26 | 1961 | Low | Fair |
| Brock Johnson County | 34 | 1964 | Low | Poor |
| Broken Jaw Stock Campbell County | 40 | 1955 | Low | Poor |
| Brown Campbell County | 29 | 1957 | Low | Fair |
| Brownlee Carbon County | 15 | 1892 | Low | Poor |
| Brown No. 1 Big Horn County | 30 | 1913 | Low | Poor |
| Brown No. 1 Albany County | 39 | 1953 | Low | Poor |
| Brown No. 2 Big Horn County | 30 | 1913 | Low | Poor |
| Bruce Johnson County | 22 | 1956 | Low | Fair |
| Bruce No. F.S. 9-313-1 Weston County | 22 | 1969 | Low | Fair |
| Buckaroo Freshwater Cell Laramie County | 18 | 2018 | Low | Satisfactory |
| Buckaroo Freshwater Cell Laramie County | 18 | 2018 | Low | Satisfactory |
| Buck Draw Carbon County | 32 | 1955 | Low | Poor |
| Bucklin Carbon County | 35 | 1991 | Low | Fair |
| Bucklin No. 2 Carbon County | 9 | 1930 | Low | Fair |
| Bucklin No. 3 Carbon County | 12 | 1930 | Low | Fair |
| Bucknum Natrona County | 23 | 1908 | Low | Poor |
| Buck Pasture Converse County | 20 | 1943 | Low | Poor |
| Buffalo Flat Big Horn County | 20 | — | Low | Unsatisfactory |
| Buffalo No.1 Detention Dam Washakie County | 33 | 2003 | Low | Unsatisfactory |
| Buffalo Wildlife Pond Johnson County | 11 | 1994 | Low | Fair |
| Bulkley Playa Campbell County | 16 | 2007 | Low | Fair |
| Bull Creek Crook County | 40 | 1978 | Low | Fair |
| Bunker Butte Campbell County | 30 | 1956 | Low | Fair |
| Burns M. G. Albany County | 14 | 1903 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.