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 126–150 of 166
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Ettinger Pond Washington County | 18 | 1954 | Significant | Not Rated |
| Eola Hills Reservoir Polk County | 19 | 1985 | Significant | Not Rated |
| Elgin Mill Trmt. Lagoon #2 Union County | 36 | 2017 | Significant | Not Rated |
| Drescher Reservoir Clackamas County | 21 | 1958 | Significant | Not Rated |
| Drain Sewage Lagoon Douglas County | 17 | 1986 | Significant | Not Rated |
| Drain Plywood Log Pond Douglas County | 14 | 1956 | Significant | Not Rated |
| Dollar Mill Pond Douglas County | 11 | 1951 | Significant | Not Rated |
| Dober Reservoir Washington County | 24 | 1954 | Significant | Not Rated |
| Dixonville Log Pond Douglas County | 30 | 1956 | Significant | Not Rated |
| Dillard Lumber CO Dike Douglas County | 15 | 1946 | Significant | Not Rated |
| Dierickx Washington County | 21 | 1980 | Significant | Not Rated |
| Dick Dam Crook County | 30 | 1950 | Significant | Not Rated |
| Deraeve Reservoir #1 (Lower) Polk County | 18 | 1978 | Significant | Not Rated |
| Deardorff, Betty Jane Clackamas County | 68 | 1971 | Significant | Not Rated |
| Day Reservoir Clackamas County | 26 | 1971 | Significant | Not Rated |
| Cottonwood Meadows Lake County | 26 | 1961 | Significant | Not Rated |
| Cottonwood (Drewsey) Harney County | 83 | 1967 | Significant | Not Rated |
| Corcoran Harney County | 39 | 1949 | Significant | Not Rated |
| Cook Reservoir (Wash) Washington County | 28 | 1972 | Significant | Not Rated |
| Clear Creek Reservoir-West Fork Baker County | 24 | 1924 | Significant | Not Rated |
| Chickahominy Reservoir Harney County | 38 | 1951 | Significant | Not Rated |
| Cedar Grove Lake Clackamas County | 11 | — | Significant | Not Rated |
| Carty Reservoir Morrow County | 82 | 1976 | Significant | Not Rated |
| Canyonville Reservoir Douglas County | 58 | 1983 | Significant | Not Rated |
| Camp Creek Reservoir (Baker) Baker County | 45 | 1932 | Significant | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.