Dams in Bonneville County, Idaho
14Total Dams
6High Hazard
1Significant
Dam Safety in Bonneville County, Idaho
Bonneville County has 14 dams tracked in the National Inventory of Dams. Of these, 6 are classified as high hazard — meaning failure would probably cause loss of human life. Another 1 carry a significant hazard classification.
The average dam in Bonneville County is 49 years old. The most common purpose is hydroelectric. The tallest dam is Palisades Dam at 270 ft.
Explore more: Oldest dams in Idaho · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Palisades Dam | High | Not Available | 270 | Flood Risk Reduction | 1957 |
| Ririe Dam | High | Not Available | 253 | Flood Risk Reduction | 1977 |
| Gem State | High | Satisfactory | 40 | Hydroelectric | 1988 |
| Gem State Left Dike | High | Satisfactory | 30 | Hydroelectric | 1988 |
| Gem State Right Dike | High | Satisfactory | 30 | Hydroelectric | 1988 |
| Upper Dike | High | Satisfactory | 12 | Hydroelectric | 1982 |
| Antelope Creek | Significant | Fair | 22 | Irrigation | 1991 |
| Idaho Falls Upper Powerhouse Dam No 2 | Low | Satisfactory | 37 | Hydroelectric | 1982 |
| Elkington | Low | Fair | 35 | Irrigation | 1994 |
| Upper Diversion Dam #2 | Low | Satisfactory | 33 | Hydroelectric | 1982 |
| City Diversion | Low | Satisfactory | 30 | Hydroelectric | 1982 |
| Idaho Falls Upper Diversion Dam No 1 | Low | Satisfactory | 28 | Hydroelectric | 1982 |
| Little Valley | Low | Fair | 23 | Other | 1897 |
| Lower Diversion | Low | Satisfactory | 14 | Hydroelectric | 1982 |