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 576–600 of 856
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Pine Creek Reservoir (Baker) Baker County | 18 | 1933 | Low | Not Rated |
| Pine Hollow Wasco County | 66 | 1969 | High | Satisfactory |
| Pitt Lake Dam Lake County | 11 | 1920 | Low | Not Rated |
| Piute Reservoir Lake County | 40 | 1953 | Low | Not Rated |
| Plat I Douglas County | 30 | 1967 | High | Satisfactory |
| Poison Creek Dam Grant County | 21 | 1999 | Low | Satisfactory |
| Pole Creek Malheur County | 58 | 1944 | High | Poor |
| Pons Lake Reservoir Grant County | 20 | 1968 | Low | Not Rated |
| Pony Creek - Lower Coos County | 38 | 1988 | High | Poor |
| Pony Creek - Upper Coos County | 77 | 2001 | High | Satisfactory |
| Porter Cc Reservoir (Clackamas) Clackamas County | 26 | 1977 | Low | Not Rated |
| Portland #1 (Mt.Tabor) Multnomah County | 38 | 1894 | High | Satisfactory |
| Portland #3 (Washington Park) Multnomah County | 53 | 1894 | High | Satisfactory |
| Portland #5 (Mt.Tabor) Multnomah County | 55 | 1911 | High | Satisfactory |
| Portland #6 (Mt.Tabor) Multnomah County | 28 | 1911 | High | Satisfactory |
| Port of Morrow Wwt Lagoon Morrow County | 20 | 1994 | Low | Not Rated |
| Powers Log Pond Coos County | 15 | 1955 | Significant | Not Rated |
| Prairie City Lagoon (Cell 2) Grant County | 16 | 1981 | Low | Not Rated |
| Prairie City Lagoon (Cell 3) Grant County | 18 | 1981 | Low | Not Rated |
| Priday Reservoir Lake County | 18 | 1961 | Low | Not Rated |
| Pringle Flat Reservoir Crook County | 15 | 1923 | Low | Not Rated |
| Promise Reservoir Wallowa County | 37 | 1980 | Low | Not Rated |
| Prospect Forebay Dam Jackson County | 31 | 1911 | Significant | Satisfactory |
| Pyles Canyon 2 Union County | 41 | 1977 | Low | Not Rated |
| Radio Springs Harney County | 23 | 1974 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.