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 101–125 of 752
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Tabasco Johnson County | 43 | 2006 | Low | Fair |
| T55nr76w31sese Sheridan County | 28 | 1960 | Low | Fair |
| T55nr76w30nese Sheridan County | 30 | 1960 | Low | Fair |
| T55nr76w29nwse Sheridan County | 32 | 1960 | Low | Fair |
| T55nr75w24swsw Campbell County | 30 | 2001 | Low | Fair |
| T55nr75w23swne Campbell County | 34 | 2002 | Low | Fair |
| T55nr75w22nwne Campbell County | 28 | 2002 | Low | Fair |
| T55nr75w11senw Campbell County | 29 | 2010 | Low | Fair |
| T42nr75w14swse Campbell County | 32 | 2001 | Low | Fair |
| Sulphur Creek Uinta County | 85 | 1964 | High | Fair |
| Sullivan No. 2 Natrona County | 26 | 1992 | Low | Fair |
| Stuart Campbell County | 19 | 1946 | Low | Fair |
| Streeter Johnson County | 32 | 1951 | Low | Fair |
| Stone No. 2 Campbell County | 29 | 1916 | Low | Fair |
| Stonebridge Park County | 24 | 1905 | Significant | Fair |
| Stockwater Niobrara County | 24 | 1939 | Low | Fair |
| Stockpond Campbell County | 39 | 2007 | Low | Fair |
| Stevens No. 2 Johnson County | 55 | 1972 | Low | Fair |
| Sr. No. 22-14a Weston County | 13 | 1989 | Low | Fair |
| Spring Lake Carbon County | 21 | 1970 | Low | Fair |
| Spring Canyon Goshen County | 58 | 1979 | High | Fair |
| Sportsman Lake Albany County | 13 | 1949 | Low | Fair |
| Spencer No. 2 Weston County | 25 | 1961 | Low | Fair |
| Spellman B1-27-5475 Campbell County | 40 | 2008 | Low | Fair |
| Spearhead Pond #1 Converse County | 31 | 2016 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.