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 76–100 of 155
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lonesome Lake Malheur County | 35 | — | High | Poor |
| Lookout Point Dam Lane County | 276 | 1953 | High | Not Available |
| Mason Dam Baker County | 173 | 1968 | High | Not Available |
| Mays Jefferson County | 38 | 1960 | High | Poor |
| Mcguire Yamhill County | 111 | 2003 | High | Satisfactory |
| McKay Dam Umatilla County | 165 | 1927 | High | Not Available |
| Mcmullen Creek Josephine County | 45 | 1961 | High | Unsatisfactory |
| McNary Lock and Dam Benton County | 220 | 1954 | High | Not Available |
| Mercer Polk County | 81 | 1961 | High | Poor |
| Middle Clatsop County | 39 | 1940 | High | Fair |
| Mill Creek Lincoln County | 74 | 1969 | High | Fair |
| Mompano Clackamas County | 44 | 1971 | High | Satisfactory |
| Morgan Lake Union County | 24 | 1976 | High | Poor |
| North Canal Diversion Deschutes County | 35 | 1906 | High | Fair |
| North Fork Benton County | 83 | 1960 | High | Fair |
| North Fork Clackamas County | 207 | 1958 | High | Satisfactory |
| North Fork Diversion Dam Jackson County | 55 | 1928 | High | Fair |
| Ochoco Dam Crook County | 146 | 1920 | High | Not Available |
| Olalla Lincoln County | 83 | 1968 | High | Fair |
| Olive Lake Grant County | 39 | 1907 | High | Not Rated |
| Osborne Creek Jackson County | 65 | 1964 | High | Poor |
| Owyhee Dam Malheur County | 417 | 1932 | High | Not Available |
| Paris Douglas County | 51 | 1963 | High | Fair |
| Pelton Jefferson County | 204 | 1957 | High | Satisfactory |
| Pelton Regulating Jefferson County | 40 | 1958 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.