Dams in Twin Falls County, Idaho
18Total Dams
4High Hazard
3Significant
Dam Safety in Twin Falls County, Idaho
Twin Falls County has 18 dams tracked in the National Inventory of Dams. Of these, 4 are classified as high hazard — meaning failure would probably cause loss of human life. Another 3 carry a significant hazard classification.
The average dam in Twin Falls County is 81 years old. The most common purpose is irrigation. The tallest dam is Salmon Falls at 224 ft.
Explore more: Oldest dams in Idaho · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Salmon Falls | High | Fair | 224 | Other | 1911 |
| Cedar Creek | High | Fair | 90 | Irrigation | 1920 |
| Milner S Embankment | High | Satisfactory | 65 | Irrigation | 1992 |
| Murtaugh Lake | High | Fair | 42 | Irrigation | 1905 |
| Williams | Significant | Fair | 53 | Irrigation | 1952 |
| Deep Creek No 2 | Significant | Fair | 42 | Other | 1911 |
| Mcmullen | Significant | Fair | 25 | Irrigation | 1948 |
| Upper Salmon Falls A-plant & Forebay | Low | Satisfactory | 85 | Hydroelectric | 1937 |
| Upper Salmon Falls B-plant Forebay | Low | Satisfactory | 73 | Hydroelectric | 1947 |
| Twin Falls Intake Dam | Low | Satisfactory | 30 | Hydroelectric | 1935 |
| Heil No 1 | Low | Fair | 24 | Irrigation | 1974 |
| Cedar Creek Holding | Low | Fair | 24 | Irrigation | 1966 |
| Munsee | Low | Fair | 23 | Irrigation | 1977 |
| Deep Creek No 1 | Low | Fair | 18 | Other | 1911 |
| Shoshone Falls Dam 4 | Low | Satisfactory | 18 | Hydroelectric | 1907 |
| Salmon Falls Creek | Low | Satisfactory | 13 | Irrigation | 1956 |
| Kinyon Pond Dam | Low | Satisfactory | 13 | Irrigation | 2014 |
| Upper Salmon Falls A-plant Diversion Dam | Low | Satisfactory | 9 | Hydroelectric | 1937 |