Dams in Franklin County, Idaho
21Total Dams
8High Hazard
6Significant
Dam Safety in Franklin County, Idaho
Franklin County has 21 dams tracked in the National Inventory of Dams. Of these, 8 are classified as high hazard — meaning failure would probably cause loss of human life. Another 6 carry a significant hazard classification. Currently, 2 dams have a condition assessment of poor or unsatisfactory.
The average dam in Franklin County is 90 years old. The most common purpose is irrigation. The tallest dam is Oneida Main at 114 ft.
Explore more: Oldest dams in Idaho · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Oneida Main | High | Fair | 114 | Irrigation | 1920 |
| Glendale | High | Fair | 73 | Other | 1930 |
| Foster | High | Fair | 70 | Irrigation | 1962 |
| Lamont | High | Fair | 68 | Irrigation | 1948 |
| Oneida Embankment | High | Fair | 60 | Irrigation | 1921 |
| Strong Arm No 1 (upper) | High | Fair | 39 | Other | 1887 |
| Twin Lakes South | High | Satisfactory | 36 | Irrigation | 1920 |
| Twin Lakes North | High | Fair | 32 | Irrigation | 1920 |
| Winder | Significant | Fair | 57 | Irrigation | 1958 |
| Condie | Significant | Satisfactory | 41 | Other | 1948 |
| Andreasen Lower | Significant | Satisfactory | 33 | Irrigation | 1960 |
| Andreasen Upper | Significant | Unsatisfactory | 29 | Irrigation | 1957 |
| Johnson | Significant | Fair | 28 | Irrigation | 1860 |
| Strong Arm No 2 (lower) | Significant | Poor | 27 | Irrigation | 1897 |
| Five Mile Erosion Contr | Low | Satisfactory | 44 | Other | 1952 |
| Tingey | Low | Fair | 25 | Irrigation | 1955 |
| Van Orden | Low | Fair | 23 | Irrigation | 1961 |
| Casperson | Low | Fair | 22 | Irrigation | 1958 |
| Oxford | Low | Fair | 21 | Other | 1920 |
| Nash | Low | Fair | 21 | Irrigation | 1952 |
| Morrison | Low | Fair | 17 | Irrigation | 1959 |