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 26–50 of 535
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Beaver Creek (Union) Union County | 35 | 1915 | Low | Not Rated |
| Beaverdam Pond Baker County | 11 | 1902 | Low | Not Rated |
| Beaver Pond Dam (Wheeler) Wheeler County | 31 | 1988 | Low | Not Rated |
| Becker Malheur County | 10 | 1927 | Low | Not Rated |
| Beer S Reservoir Malheur County | 14 | 1914 | Low | Not Rated |
| Belchers Dam Multnomah County | 28 | 1965 | Low | Not Rated |
| Bennett Dam Baker County | 23 | 1908 | Low | Not Rated |
| Bibby Dam Sherman County | 37 | 1962 | Low | Not Rated |
| Big Lake County | 10 | 1966 | Low | Fair |
| Big Foot Dam Harney County | 16 | 1953 | Low | Poor |
| Big Miller Lake Josephine County | 22 | 1961 | Low | Not Rated |
| Big Rock Res. Dam Lake County | 27 | 1969 | Low | Not Rated |
| Big Swamp Reservoir Lake County | 10 | 1908 | Low | Not Rated |
| Black Snag Reservoir Crook County | 38 | 1998 | Low | Not Rated |
| Blaine #1 Wasco County | 15 | 1993 | Low | Not Rated |
| Blaine Dam #2 Wasco County | 27 | — | Low | Not Rated |
| Blann Meadows Dam Wheeler County | 31 | 1959 | Low | Not Rated |
| Blevin Dam Malheur County | 26 | 1954 | Low | Not Rated |
| Blue Heron Reservoir Yamhill County | 12 | 1979 | Low | Not Rated |
| Boardman Sewage Lagoons Morrow County | 12 | 1984 | Low | Not Rated |
| Boggy Lake Dam Lake County | 23 | 1997 | Low | Not Rated |
| Bolan Lake Dam Josephine County | 12 | 1972 | Low | Not Rated |
| Booth Kelly Lumber Pond (Lagoon) Lane County | 12 | 1953 | Low | Not Rated |
| Botens Reservoir Klamath County | 17 | — | Low | Not Rated |
| Box Springs Reservoir Malheur County | 13 | 1928 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.