14Total Dams
4High Hazard
4Significant
Dam Safety in Coos County, Oregon
Coos County has 14 dams tracked in the National Inventory of Dams. Of these, 4 are classified as high hazard — meaning failure would probably cause loss of human life. Another 4 carry a significant hazard classification. Currently, 1 dam has a condition assessment of poor or unsatisfactory.
The average dam in Coos County is 68 years old. The most common purpose is water supply. The tallest dam is Pony Creek - Upper at 77 ft.
Explore more: Oldest dams in Oregon · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Pony Creek - Upper | High | Satisfactory | 77 | Water Supply | 2001 |
| Pony Creek - Lower | High | Poor | 38 | Water Supply | 1988 |
| Fourth Creek | High | Satisfactory | 21 | Recreation | 1930 |
| Tarheel | High | Satisfactory | 20 | Recreation | 1924 |
| Jackson Farms Dam | Significant | Not assessed | 60 | Irrigation | 1998 |
| Rink Creek Reservoir | Significant | Not assessed | 55 | Water Supply | 1939 |
| Windhurst | Significant | Not assessed | 43 | Irrigation | |
| Powers Log Pond | Significant | Not assessed | 15 | Other | 1955 |
| Coos Ctry Club 15th Hole Dam | Low | Not assessed | 25 | Recreation | |
| Clausen Dam | Low | Not assessed | 15 | Recreation | 1995 |
| Johnson Log Sorting Pond | Low | Not assessed | 13 | Other | 1951 |
| Empire Lake, Lower | Low | Not assessed | 12 | Water Supply | 1935 |
| Coquille Plywood Mill Pond | Low | Not assessed | 11 | Other | 1957 |
| Smith, C.a. Reservoir | Low | Not assessed | 10 | Other | 1916 |