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 1201–1225 of 1,490
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Corpening Carbon County | 14 | 1947 | Low | Poor |
| Corbett Diversion Dam Park County | 18 | 1908 | Low | Not Available |
| Cooper Natrona County | 16 | 1933 | Low | Poor |
| Cook Stock Albany County | 27 | 2001 | Low | Fair |
| Cook No. 2 Albany County | 34 | 2001 | Low | Fair |
| Cook Lake Crook County | 40 | 1963 | High | Not Rated |
| Colorado Colony Ditch Co. No. 2 Sheridan County | 16 | 1957 | Low | Poor |
| Colletti No. 2 Lincoln County | 26 | 1927 | Low | Poor |
| Cody Sewage Lagoon (Cell 2) Park County | 15 | 1987 | Low | Fair |
| Cody Sewage Lagoon (Cell 1) Park County | 15 | 1987 | Low | Fair |
| Cody Municipal Park County | 40 | 1948 | Significant | Fair |
| Coal Gulch Carbon County | 30 | 2013 | Low | Fair |
| Coal Bank Albany County | 19 | 1953 | Low | Poor |
| Cms Railroad Project Section 6 Campbell County | 33 | 2000 | Low | Fair |
| Cloud Peak Johnson County | 36 | 1958 | High | Fair |
| Cloud Creek No. 3 Natrona County | 27 | 2004 | Low | Fair |
| Clifford F. Graham Uinta County | 19 | 1961 | Low | Poor |
| Clearwater Albany County | 26 | 1950 | Low | Poor |
| Clear Creek Laramie County | 25 | 1910 | Low | Poor |
| Clay No. 1 Platte County | 29 | 1942 | Low | Fair |
| Clay Bank Reservoir Fremont County | 12 | 1952 | Low | Fair |
| Claudie Crook County | 28 | 1961 | Low | Fair |
| Clark No. 1 Niobrara County | 27 | 1956 | Low | Fair |
| Clark No. 1 Niobrara County | 25 | 1959 | Low | Poor |
| Clarkelen Disposal Facility Campbell County | 38 | 2018 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.