52Total Dams
17High Hazard
20Significant
Dam Safety in Jackson County, Oregon
Jackson County has 52 dams tracked in the National Inventory of Dams. Of these, 17 are classified as high hazard — meaning failure would probably cause loss of human life. Another 20 carry a significant hazard classification. Currently, 6 dams have a condition assessment of poor or unsatisfactory.
The average dam in Jackson County is 69 years old. The most common purpose is irrigation. The tallest dam is Applegate Dam at 242 ft.
Explore more: Oldest dams in Oregon · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Applegate Dam | High | Not assessed | 242 | Flood Risk Reduction | 1980 |
| Hosler (reeder Gulch | High | Unsatisfactory | 114 | Water Supply | 1928 |
| Howard Prairie Dam | High | Not assessed | 100 | Hydroelectric | 1958 |
| Woodrat Knob | High | Unsatisfactory | 92 | Irrigation | 1960 |
| Agate Dam | High | Not assessed | 86 | Irrigation | 1965 |
| Wade | High | Fair | 85 | Irrigation | 1963 |
| Lake Creek | High | Fair | 83 | Irrigation | 1965 |
| Keene Creek Dam | High | Not assessed | 78 | Hydroelectric | 1959 |
| Walch Dam | High | Poor | 68 | Irrigation | 1954 |
| Osborne Creek | High | Poor | 65 | Irrigation | 1964 |
| Yankee | High | Fair | 61 | Irrigation | 1951 |
| Sams Valley | High | Fair | 61 | Irrigation | 1956 |
| Willow Creek | High | Satisfactory | 59 | Water Supply | 1953 |
| North Fork Diversion Dam | High | Fair | 55 | Hydroelectric | 1928 |
| Hyatt Dam | High | Not assessed | 53 | Hydroelectric | 1923 |
| Fish Lake Dam | High | Not assessed | 50 | Flood Risk Reduction | 1908 |
| Duggan | High | Poor | 24 | Recreation | 1965 |
| Gardener Reservoir | Significant | Not assessed | 65 | Irrigation | 1952 |
| Bradshaw | Significant | Not assessed | 50 | Irrigation | 1966 |
| North Fork Diversion Dam | Significant | Not assessed | 50 | Hydroelectric | 1965 |
| Woolfolk Reservoir | Significant | Not assessed | 49 | Irrigation | 1955 |
| Squaw Lake Dam | Significant | Not assessed | 34 | Water Supply | 1957 |
| Prospect Forebay Dam | Significant | Satisfactory | 31 | Hydroelectric | 1911 |
| Hoover Pond 2 | Significant | Not assessed | 28 | Recreation | 1962 |
| William L. Jess Dam - Lost Creek Lake Fish Structure | Significant | Not assessed | 28 | Fish and Wildlife Pond | 1976 |
| Harrison | Significant | Not assessed | 27 | Irrigation | 1968 |
| Bounds Reservoir | Significant | Not assessed | 26 | Recreation | 1984 |
| Mccormick Reservoir | Significant | Not assessed | 24 | Irrigation | 1954 |
| Hammel No. 2 | Significant | Not assessed | 24 | Irrigation | 1957 |
| Bradshaw 2 | Significant | Not assessed | 22 | Irrigation | 1966 |
| Frog Pond #1 | Significant | Not assessed | 22 | Irrigation | 1968 |
| Lester James #1 | Significant | Not assessed | 22 | Irrigation | 1953 |
| Skou Reservoir | Significant | Not assessed | 22 | Irrigation | 1955 |
| Hoover Pond 1 | Significant | Not assessed | 17 | Recreation | 1962 |
| Lester James Reservoir 3 | Significant | Not assessed | 15 | Irrigation | 1959 |
| Lester James Reservoir 2 | Significant | Not assessed | 15 | Irrigation | 1958 |
| Hoover Pond 3 | Significant | Not assessed | 14 | Recreation | 1962 |
| Star Lake | Low | Not assessed | 56 | Irrigation | 1964 |
| Stanley, Charles W. Reservoir | Low | Not assessed | 45 | Irrigation | 1962 |
| Nelson Reservoir No. 1 | Low | Not assessed | 36 | Irrigation | 1957 |
| South Fork Diversion Dam | Low | Satisfactory | 33 | Hydroelectric | 1932 |
| Pierce Reservoir | Low | Not assessed | 32 | Irrigation | 1955 |
| Owen | Low | Not assessed | 31 | Irrigation | 1975 |
| Ra Murphy Dam | Low | Not assessed | 28 | ||
| Simpson Reservoir (jackson) | Low | Not assessed | 27 | Irrigation | 1967 |
| Charley Horse Reservoir | Low | Not assessed | 26 | Recreation | 1966 |
| Ditch Creek Reservoir | Low | Not assessed | 26 | Irrigation | |
| Little Hyatt Dam | Low | Poor | 23 | Recreation | |
| Dailey Reservoir Log Pond | Low | Not assessed | 22 | Other | 1944 |
| Medford Forest Nursery | Low | Not assessed | 17 | Irrigation | 1978 |
| Emigrant Spillway Dike | Low | Not assessed | 14 | Flood Risk Reduction | 1960 |
| Grizzley Creek Reservoir No. 2 | Low | Not assessed | 14 | Irrigation | 1955 |