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 26–50 of 100
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Dump Draw Johnson County | 42 | 2019 | High | Satisfactory |
| Eastdale Creek Detention No.2 Natrona County | 19 | 2008 | High | Fair |
| Eastgate Natrona County | 60 | 2010 | High | Poor |
| Enlargement of Worthen Meadows Fremont County | 46 | 1958 | High | Not Rated |
| Enl. Turpin Park Carbon County | 30 | 1957 | High | Fair |
| Enterprise Fremont County | 29 | 1940 | High | Fair |
| Fontenelle Dam Lincoln County | 139 | 1964 | High | Not Available |
| Glendo Dam Platte County | 196 | 1958 | High | Not Available |
| Glendo Dike 1 Platte County | 50 | 1959 | High | Not Available |
| Glendo Dike 2 Platte County | 63 | 1959 | High | Not Available |
| Glendo Dike 3 Platte County | 94 | 1959 | High | Not Available |
| Granite Springs Laramie County | 90 | 1904 | High | Fair |
| Grassy Lake Dam Teton County | 118 | 1939 | High | Not Available |
| Grayrocks Platte County | 95 | 1980 | High | Fair |
| Greybull Valley (1st Enl.) Park County | 207 | 2000 | High | Fair |
| Guernsey Dam Platte County | 137 | 1927 | High | Not Available |
| Hawk Springs Goshen County | 64 | 1925 | High | Poor |
| Healy Johnson County | 76 | 1975 | High | Not Rated |
| High Savery Carbon County | 165 | 2003 | High | Fair |
| Hog Park Main Dam Carbon County | 118 | 1986 | High | Not Rated |
| Hog Park Saddle Dam No. 1 Carbon County | 26 | 1986 | High | Not Rated |
| Hog Park Saddle Dam No. 2 Carbon County | 34 | 1986 | High | Not Rated |
| Jackson Lake Dam Teton County | 84 | 1911 | High | Not Available |
| Kearney Lake Johnson County | 67 | 1963 | High | Fair |
| Kemmerer Lincoln County | 30 | 1942 | High | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.