Oregon Dams
856 dams tracked by the National Inventory of Dams
Total Dams
856
High Hazard
155
18.1%
Poor / Unsatisfactory
47
Average Age
67 yrs
Hazard Classification
High155 (18.1%)
Significant166 (19.4%)
Low535 (62.5%)
Condition Assessment
Satisfactory62 (7.2%)
Fair39 (4.6%)
Poor / Unsatisfactory47 (5.5%)
Not Rated708 (82.7%)
Federal
122
State
14
Local
94
Private
603
Tallest Dams
- Cougar Dam519 ft
- Detroit Dam463 ft
- Round Butte440 ft
- Owyhee Dam417 ft
- Brownlee395 ft
High Hazard Dams
- Cougar DamHigh
- Detroit DamHigh
- Round ButteHigh
- Owyhee DamHigh
- BrownleeHigh
Poor Condition Dams
- SmithUnsatisfactory
- Hosler (Reeder GulchUnsatisfactory
- Willow Creek 3 (Malheur)Unsatisfactory
- Clear BranchUnsatisfactory
- Bear CreekPoor
All Dams in Oregon
Showing 1–25 of 535
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| 4-B Farms Marion County | 17 | — | Low | Not Rated |
| Aamodt Flashboard Dam Clackamas County | 10 | 1977 | Low | Not Available |
| Abe Ediger Reservoir Polk County | 18 | 1957 | Low | Not Rated |
| Albertson Reservoir (Lake) Lake County | 30 | 1954 | Low | Not Rated |
| Albertson S Reservoir (Malheur) (Lagoon) Malheur County | 22 | 1976 | Low | Not Rated |
| Alder Creek Harney County | 63 | 1973 | Low | Not Rated |
| Allen Creek Crook County | 83 | 1959 | Low | Not Rated |
| Altnow Reservoir Harney County | 23 | 1908 | Low | Not Rated |
| Amalgamated Sugar Malheur County | 11 | 1984 | Low | Not Rated |
| American Can Dams (Lagoon) Linn County | 14 | 1977 | Low | Not Rated |
| Anderson-Lower (Malheur) Malheur County | 34 | 1917 | Low | Not Rated |
| Anderson-Rose Diversion Dam Klamath County | 23 | 1921 | Low | Not Available |
| Anderson - Roy Reservoir Clackamas County | 26 | 1970 | Low | Not Rated |
| Andy Hill Reservoir Lake County | 21 | 1961 | Low | Not Rated |
| Antelope Dam Klamath County | 18 | 1959 | Low | Not Rated |
| Antelope Flat (Crook) Crook County | 37 | 1965 | Low | Not Rated |
| Arntz Dam Harney County | 22 | 1957 | Low | Not Rated |
| Arock Diversion Dam Malheur County | 20 | — | Low | Not Rated |
| Arritola Reservoir Malheur County | 18 | 1916 | Low | Not Rated |
| Badger Lake (Hood River) Hood River County | 23 | 1942 | Low | Not Rated |
| Bailey Reservoir (Aka Kalsch) Washington County | 12 | 1968 | Low | Not Rated |
| Baker West Nursery Dam Marion County | 26 | 1998 | Low | Not Rated |
| Barry, Nick Reservoir Lake County | 29 | 1927 | Low | Not Rated |
| Bates Reservoir Grant County | 26 | 1949 | Low | Not Rated |
| Bauer Reservoir Washington County | 17 | 1965 | Low | Not Rated |
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.