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 676–700 of 856
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Development No. 1 Dam Multnomah County | 200 | 1929 | High | Fair |
| Detroit Dam Linn County | 463 | 1953 | High | Not Available |
| Desert Meadows Reservoir Dam Harney County | 11 | 1913 | Low | Unsatisfactory |
| Desert Creek Dam Crook County | 46 | — | Low | Not Rated |
| Deraeve Reservoir #2 Polk County | 22 | 1987 | Low | Not Rated |
| Deraeve Reservoir #1 (Lower) Polk County | 18 | 1978 | Significant | Not Rated |
| Denley Brothers Dam Douglas County | 23 | 1960 | Low | Not Rated |
| Delintment Lake Harney County | 21 | 1953 | Low | Not Rated |
| Delaubenfels Benton County | 33 | 1970 | Low | Not Rated |
| Dejong, The Reservoir Polk County | 39 | 1961 | Low | Not Rated |
| Deary Reservoir Malheur County | 28 | 1937 | Low | Not Rated |
| Deardorff, Betty Jane Clackamas County | 68 | 1971 | Significant | Not Rated |
| Deadman Creek Reservoir Harney County | 55 | 1984 | Low | Not Rated |
| Day Reservoir Clackamas County | 26 | 1971 | Significant | Not Rated |
| Davison, Dale Polk County | 28 | 1971 | Low | Not Rated |
| Davis Lake Dam Sherman County | 23 | — | Low | Not Rated |
| Dallas Lake Reservoir Lake County | 30 | 1959 | Low | Not Rated |
| Dailey Reservoir Log Pond Jackson County | 22 | 1944 | Low | Not Rated |
| Cyrus Reservoir Deschutes County | 17 | 1968 | Low | Not Rated |
| Currant Creek Wasco County | 82 | 1984 | High | Poor |
| Crows Nest Reservoir Malheur County | 29 | 2004 | Low | Satisfactory |
| Crown Zellerbach (Lagoon) Clackamas County | 15 | — | Low | Not Rated |
| Crowley Malheur County | 90 | 1938 | High | Unsatisfactory |
| Crow - F. M. Reservoir Baker County | 15 | 1916 | Low | Not Rated |
| Crowe Reservoir #2 (Polk) Polk County | 24 | 1971 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.