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 76–100 of 104
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Goshen No. 1 Goshen County | 17 | 1924 | Significant | Poor |
| Goshen Hole Goshen County | 26 | 1957 | Significant | Poor |
| Glowmill Goshen County | 17 | 1976 | Significant | Poor |
| Garnett Big Horn County | 30 | 1944 | Significant | Poor |
| French Crook County | 37 | 1953 | Significant | Fair |
| Foster Storage Crook County | 18 | 1965 | Significant | Not Rated |
| Flathead Washakie County | 45 | 1979 | Significant | Poor |
| Fgd Effluent Pond #5 Lincoln County | 58 | 2018 | Significant | Satisfactory |
| Fgd Effluent #4 Lincoln County | 63 | 2010 | Significant | Fair |
| Fairview Extension Big Horn County | 37 | 1972 | Significant | Not Rated |
| Elsie Converse County | 39 | 1975 | Significant | Poor |
| East Side No. 3 Converse County | 25 | 1966 | Significant | Poor |
| East Fork Wolf Creek Natrona County | 42 | 1974 | Significant | Fair |
| Douglas Fishing Lake No. 1 Converse County | 28 | 1954 | Significant | Unsatisfactory |
| Crosby Big Horn County | 40 | 1980 | Significant | Poor |
| Crompton Uinta County | 26 | 1954 | Significant | Poor |
| Cottonwood Campbell County | 41 | 1994 | Significant | Fair |
| Cody Municipal Park County | 40 | 1948 | Significant | Fair |
| City Shop Detention Pond Goshen County | 11 | 2017 | Significant | Fair |
| Christina Fremont County | 22 | 1942 | Significant | Not Rated |
| Chittim Fremont County | 33 | 2003 | Significant | Unsatisfactory |
| Chamberlain No. 1 Converse County | 27 | 1965 | Significant | Fair |
| Casper Sage Creek Natrona County | 40 | 1952 | Significant | Fair |
| Casper Parks No.2 Natrona County | 24 | 1988 | Significant | Fair |
| Boulder Lake Sublette County | 25 | 1964 | Significant | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.