15Total Dams
3High Hazard
1Significant
Dam Safety in Fremont County, Idaho
Fremont County has 15 dams tracked in the National Inventory of Dams. Of these, 3 are classified as high hazard — meaning failure would probably cause loss of human life. Another 1 carry a significant hazard classification. Currently, 1 dam has a condition assessment of poor or unsatisfactory.
The average dam in Fremont County is 92 years old. The most common purpose is irrigation. The tallest dam is Ashton at 65 ft.
Explore more: Oldest dams in Idaho · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Ashton | High | Satisfactory | 65 | Irrigation | 1917 |
| Henrys Lake | High | Fair | 25 | Other | 1923 |
| Island Park Dike | High | Not assessed | 12 | 1938 | |
| Silver Lake | Significant | Fair | 13 | Recreation | 1915 |
| Henrys Fork Ranch | Low | Fair | 23 | Recreation | 1987 |
| Arcadia Lower | Low | Fair | 23 | Irrigation | 1912 |
| Arcadia Upper | Low | Poor | 21 | Irrigation | 1912 |
| Jacobs | Low | Fair | 19 | Other | 1935 |
| Blue Creek Upper | Low | Fair | 18 | Other | 1920 |
| Cross Cut Diversion | Low | Satisfactory | 18 | Irrigation | 1938 |
| Mikesell Upper | Low | Fair | 16 | Irrigation | 1945 |
| Egbert Dam | Low | Fair | 15 | Irrigation | 1982 |
| Seeley Lower | Low | Fair | 14 | Irrigation | |
| Buffalo River | Low | Satisfactory | 12 | Hydroelectric | 1936 |
| Egin Canal Diversion | Low | Satisfactory | 7 | Irrigation | 1903 |