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 551–575 of 856
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Oxbow Ranch Dam (Grant) Grant County | 42 | 1980 | Low | Not Rated |
| Pacific Plywood Log Pond Yamhill County | 15 | 1944 | Low | Not Rated |
| Painted Hills Reservoir Wheeler County | 45 | 1979 | Low | Not Rated |
| Paiute Reservoir Harney County | 21 | 1964 | Low | Not Rated |
| Palmer Reservoir Crook County | 37 | 1959 | Low | Not Rated |
| Panther Creek Reservoir Yamhill County | 51 | 1971 | Significant | Not Rated |
| Paris Douglas County | 51 | 1963 | High | Fair |
| Parsnip Creek Diversion Malheur County | 42 | 1980 | Significant | Not Rated |
| Parsnip Creek Reservoir Malheur County | 28 | 1960 | Low | Not Rated |
| Parvipes Marsh Dam Polk County | 10 | 1995 | Low | Poor |
| Patsys Pond Yamhill County | 26 | — | Low | Not Rated |
| Paul Chobin Dam Washington County | 16 | — | Significant | Not Rated |
| Pearson Reservoir Washington County | 64 | 1971 | Low | Not Rated |
| Pelton Jefferson County | 204 | 1957 | High | Satisfactory |
| Pelton Regulating Jefferson County | 40 | 1958 | High | Satisfactory |
| Penland Lake Reservoir Morrow County | 31 | 1971 | Low | Not Rated |
| Peterson Creek Reservoir Crook County | 25 | 1954 | Low | Not Rated |
| Peterson, Floyd Marion County | 27 | 1977 | Significant | Not Rated |
| Petes Slough Columbia County | 16 | 1980 | Low | Not Rated |
| Pettit Reservoir Marion County | 26 | 1963 | Significant | Not Rated |
| Peyralans Reservoir Multnomah County | 23 | — | Significant | Not Rated |
| Pierce Reservoir Jackson County | 32 | 1955 | Low | Not Rated |
| Pierson-Upper Washington County | 31 | 1965 | Low | Not Rated |
| Pilcher Creek Union County | 110 | 1984 | High | Satisfactory |
| Pine Creek Dam (Crook) Crook County | 35 | 1950 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.