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 201–225 of 856
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Drescher Reservoir Clackamas County | 21 | 1958 | Significant | Not Rated |
| Drews Lake County | 63 | 1914 | High | Fair |
| Dry Creek (Catlow Valley) Harney County | 12 | 1960 | Low | Not Rated |
| Dry Creek Diversion Dam Lake County | 13 | 1974 | Low | Not Rated |
| Duck Pond Dam Marion County | 35 | 2001 | Low | Not Rated |
| Duggan Jackson County | 24 | 1965 | High | Poor |
| Duncan Reservoir - Dam Lake County | 25 | 1973 | Low | Not Rated |
| Dundee Sewer Project (Lagoon) Yamhill County | 37 | 1979 | Low | Not Rated |
| Dusky Marsh Dam Polk County | 10 | 1998 | Low | Poor |
| Eagle Lake Dam Union County | 33 | 1920 | Low | Not Rated |
| East Basin, Cell 1 and 2 Lane County | 16 | 1954 | Low | Not Rated |
| Easterday Reservoir Malheur County | 16 | 1948 | Low | Not Rated |
| East Lakes Creek Baker County | 26 | 1963 | Low | Not Rated |
| Echave Reservoir (Malheur) Malheur County | 35 | 1954 | Low | Not Rated |
| Echo Lake Reservoir Union County | 10 | 1922 | Low | Not Rated |
| Elgin Mill Trmt. Lagoon #1 Union County | 16 | 1976 | Low | Not Rated |
| Elgin Mill Trmt. Lagoon #2 Union County | 36 | 2017 | Significant | Not Rated |
| Elmer Reservoir 1 (Union) Union County | 16 | 1966 | Low | Not Rated |
| Elmer Reservoir 2 (Union) Union County | 16 | 1966 | Low | Not Rated |
| Elmer Reservoir 3 (Union) Union County | 14 | 1977 | Low | Not Rated |
| Elmer Stoplog Dam (Union) Union County | 12 | 1975 | Low | Not Rated |
| Elms Reservoir Baker County | 14 | 1908 | Low | Not Rated |
| Emigrant Dam Jackson County | 204 | 1960 | High | Not Available |
| Emmel Bros. Reservoir Grant County | 27 | 1984 | Low | Not Rated |
| Empire Lake, Lower Coos County | 12 | 1935 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.