Dams in Polk County, Oregon
42Total Dams
2High Hazard
8Significant
Dam Safety in Polk County, Oregon
Polk County has 42 dams tracked in the National Inventory of Dams. Of these, 2 are classified as high hazard — meaning failure would probably cause loss of human life. Another 8 carry a significant hazard classification. Currently, 5 dams have a condition assessment of poor or unsatisfactory.
The average dam in Polk County is 46 years old. The most common purpose is irrigation. The tallest dam is Mercer at 81 ft.
Explore more: Oldest dams in Oregon · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Mercer | High | Poor | 81 | Water Supply | 1961 |
| Croft | High | Satisfactory | 45 | Irrigation | 1968 |
| Mt. Springs Ranch Dam | Significant | Not Rated | 42 | Irrigation | 1969 |
| Kennel Reservoir | Significant | Not Rated | 27 | Irrigation | 1977 |
| Olson Reservoir (mark) | Significant | Not Rated | 25 | Irrigation | 1988 |
| Koning "e" Reservoir | Significant | Not Rated | 24 | Irrigation | 1995 |
| Fern Creek | Significant | Not Rated | 21 | 2019 | |
| Eola Hills Reservoir | Significant | Not Rated | 19 | Irrigation | 1985 |
| Deraeve Reservoir #1 (lower) | Significant | Not Rated | 18 | Irrigation | 1978 |
| Shaffer Reservoir | Significant | Not Rated | 16 | Irrigation | 1987 |
| Dejong, The Reservoir | Low | Not Rated | 39 | Irrigation | 1961 |
| Maple Grove | Low | Not Rated | 38 | Irrigation | 1995 |
| Johan Vineyard Reservoir H | Low | Not Rated | 35 | Hydroelectric | |
| Morgan Brothers Dam | Low | Poor | 35 | Fish and Wildlife Pond | 1962 |
| Marx Brothers Reservoir | Low | Not Rated | 32 | Irrigation | 1977 |
| Marx Reservoir #1 | Low | Not Rated | 30 | Irrigation | 1964 |
| Gehring Reservoir (towery Dam) | Low | Not Rated | 30 | Irrigation | 1959 |
| Davison, Dale | Low | Not Rated | 28 | Irrigation | 1971 |
| Hendrickson | Low | Not Rated | 25 | Recreation | 1991 |
| Crowe Reservoir #2 (polk) | Low | Not Rated | 24 | Irrigation | 1971 |
| Koning "f" Reservoir | Low | Not Rated | 23 | Irrigation | 1995 |
| Kreder Reservoir | Low | Not Rated | 22 | Irrigation | 1970 |
| Reimer, William Reservoir | Low | Not Rated | 22 | Irrigation | 1958 |
| Deraeve Reservoir #2 | Low | Not Rated | 22 | Irrigation | 1987 |
| Stewart Reservoir (polk) | Low | Not Rated | 21 | Irrigation | |
| Iott Dam | Low | Not Rated | 20 | Water Supply | |
| Turner Dam | Low | Not Rated | 19 | Water Supply | |
| Rohde Reservoir | Low | Not Rated | 19 | Irrigation | 1967 |
| Hills Reservoir (polk) | Low | Not Rated | 19 | Irrigation | 1963 |
| Abe Ediger Reservoir | Low | Not Rated | 18 | Irrigation | 1957 |
| Scharf Reservoir #2 | Low | Not Rated | 15 | Other | |
| Walker Reservoir 2 | Low | Not Rated | 12 | Irrigation | 1977 |
| Rickreall Dairy Lagoon | Low | Not Rated | 12 | Other | 1989 |
| Wallace Ingebrand | Low | Not Available | 11 | Irrigation | 1979 |
| Martin Bros. Flashboard Dam | Low | Not Rated | 11 | Irrigation | 1973 |
| Cackler Marsh Dam | Low | Fair | 11 | Fish and Wildlife Pond | 1995 |
| Mulkey, Gryland Reservoir | Low | Not Rated | 10 | Irrigation | 1981 |
| Moffitti Marsh Dam | Low | Fair | 10 | Fish and Wildlife Pond | 1995 |
| Parvipes Marsh Dam | Low | Poor | 10 | Fish and Wildlife Pond | 1995 |
| Lillie Walker Irrigation Pond Dam | Low | Not Available | 10 | Irrigation | 1969 |
| Dusky Marsh Dam | Low | Poor | 10 | Fish and Wildlife Pond | 1998 |
| Taverner Marsh Dam | Low | Poor | 9 | Fish and Wildlife Pond | 1998 |