Dams in Columbia County, Oregon
5Total Dams
0High Hazard
2Significant
Dam Safety in Columbia County, Oregon
Columbia County has 5 dams tracked in the National Inventory of Dams. Another 2 carry a significant hazard classification.
The average dam in Columbia County is 62 years old. The most common purpose is water supply. The tallest dam is Salmonberry Reservoir at 35 ft.
Explore more: Oldest dams in Oregon · Tallest dams · High risk dams · Largest reservoirs
Data note: Hazard potential describes the consequences if a dam failed; it does not predict the likelihood of failure. Inspection, condition, and emergency-plan fields can be incomplete or delayed. Check state dam-safety officials and local emergency managers for official guidance.
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Salmonberry Reservoir | Significant | Not Rated | 35 | Water Supply | 1960 |
| Rainier City Reservoir | Significant | Not Rated | 25 | Water Supply | 1954 |
| Fisher, James O Reservoir | Low | Not Rated | 34 | Irrigation | 1971 |
| Sherman Stock Reservoir #1 | Low | Not Rated | 28 | Irrigation | 1952 |
| Petes Slough | Low | Not Rated | 16 | Recreation | 1980 |