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 851–875 of 1,283
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Garrelts No. 1 Goshen County | 17 | 1975 | Low | Poor |
| Gardner Laramie County | 20 | 1962 | Low | Poor |
| Gantz Dam Natrona County | 34 | 1964 | Low | Not Rated |
| Gammon Johnson County | 34 | 1974 | Low | Poor |
| Gafford Converse County | 35 | 1951 | Low | Poor |
| Full Moon Campbell County | 22 | 1945 | Low | Fair |
| Frost No. 2 Park County | 14 | 1956 | Low | Poor |
| Frog Creek #1 Weston County | 16 | 1955 | Low | Poor |
| Fremont Lake Sublette County | 15 | 1993 | Low | Fair |
| Freemeth Springs Stock Albany County | 21 | 1976 | Low | Fair |
| Fred No. 1 Niobrara County | 31 | 1957 | Low | Poor |
| Fred Dilts No. 4 Converse County | 26 | 1954 | Low | Fair |
| Fred Crook County | 30 | 1963 | Low | Fair |
| Franklin Lincoln County | 12 | 1911 | Low | Poor |
| Fraizer Diversion Dam #3 Fremont County | 20 | 1949 | Low | Not Rated |
| Fox Farm Campbell County | 30 | 1957 | Low | Poor |
| Fowler Johnson County | 21 | 1956 | Low | Fair |
| Four Mile Johnson County | 18 | 1944 | Low | Fair |
| Foster No. 1 Dam 1b (2nd Enl.) Park County | 25 | 1953 | Low | Fair |
| Foster No. 1 Dam 1a (2nd Enl.) Park County | 24 | 1953 | Low | Poor |
| Fossil Dam Natrona County | 35 | 1966 | Low | Unsatisfactory |
| Fortification Campbell County | 25 | 1956 | Low | Fair |
| Fordyce Tepee No. 1 Sheridan County | 25 | 1964 | Low | Not Rated |
| Fordyce Deer Creek Sheridan County | 28 | 1954 | Low | Fair |
| Ford No. 1 Campbell County | 40 | 1960 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.