12Total Dams
6High Hazard
2Significant
Dam Safety in Linn County, Oregon
Linn County has 12 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 2 carry a significant hazard classification. Currently, 3 dams have a condition assessment of poor or unsatisfactory.
The average dam in Linn County is 59 years old. The most common purpose is other. The tallest dam is Detroit Dam at 463 ft.
Explore more: Oldest dams in Oregon · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Detroit Dam | High | Not assessed | 463 | Flood Risk Reduction | 1953 |
| Green Peter Dam | High | Not assessed | 378 | Flood Risk Reduction | 1967 |
| Smith | High | Unsatisfactory | 235 | Hydroelectric | 1963 |
| Foster Dam | High | Not assessed | 126 | Flood Risk Reduction | 1967 |
| Trail Bridge | High | Unsatisfactory | 90 | Hydroelectric | 1963 |
| Foster Log Pond | High | Fair | 19 | Other | 1946 |
| Sullivan Pond 3 | Significant | Not assessed | 30 | 2009 | |
| Canal Intake | Significant | Satisfactory | 20 | Water Supply | 1924 |
| Helms Reservoir | Low | Not assessed | 27 | Irrigation | 1968 |
| Carmen Diversion | Low | Unsatisfactory | 17 | Hydroelectric | 1963 |
| Macedo Dairy Lagoon | Low | Not assessed | 17 | Other | 1998 |
| American Can Dams (lagoon) | Low | Not assessed | 14 | Other | 1977 |