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 151–166 of 166
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Timber Lake Clackamas County | 46 | — | Significant | Not Rated |
| Tualatin Park Washington County | 23 | 1970 | Significant | Not Rated |
| Unger-Bill Dam Washington County | 40 | 1968 | Significant | Not Rated |
| Vaughn Log Pond Lane County | 12 | 1951 | Significant | Not Rated |
| Veterans Reservoir Clackamas County | 30 | 1923 | Significant | Not Rated |
| Waldo Lake Marion County | 13 | 1960 | Significant | Not Rated |
| Walker (Bryan Creek) Yamhill County | 35 | 1956 | Significant | Not Rated |
| Walters, Glenn #1 - Large Washington County | 28 | 1969 | Significant | Not Rated |
| Walters, Glenn #5 Washington County | 29 | 1984 | Significant | Not Rated |
| Walton Lake Dam Crook County | 34 | 1955 | Significant | Not Rated |
| Wampler-Werth Crook County | 20 | 1983 | Significant | Not Rated |
| Whited Reservoir (Baker) Baker County | 47 | 1921 | Significant | Not Rated |
| Windhurst Coos County | 43 | — | Significant | Not Rated |
| Woolfolk Reservoir Jackson County | 49 | 1955 | Significant | Not Rated |
| Yamhill Vista Dam #5 Yamhill County | 27 | — | Significant | Not Rated |
| Zielinski Farm Reservoir Clackamas County | 26 | 1974 | Significant | Not Rated |
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.