High Risk Dams in Idaho
Idaho has 3 high hazard dams with a condition assessment of poor or unsatisfactory. These are dams where failure would probably cause loss of human life and where recognized safety deficiencies have been identified.
Of the 96 high hazard dams in Idaho, 3 (3%) have concerning condition ratings — 2 rated poor and 1 rated unsatisfactory.
| Dam | County | Height (ft) | Condition | Purpose | Year |
|---|---|---|---|---|---|
| Fish Creek | Blaine | 92 | Poor | Irrigation | 1923 |
| Saint John | Oneida | 43 | Unsatisfactory | Irrigation | 1918 |
| Lost Valley | Adams | 31 | Poor | Other | 1910 |