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 101–125 of 155
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Pilcher Creek Union County | 110 | 1984 | High | Satisfactory |
| Pine Hollow Wasco County | 66 | 1969 | High | Satisfactory |
| Plat I Douglas County | 30 | 1967 | High | Satisfactory |
| Pole Creek Malheur County | 58 | 1944 | High | Poor |
| Pony Creek - Lower Coos County | 38 | 1988 | High | Poor |
| Pony Creek - Upper Coos County | 77 | 2001 | High | Satisfactory |
| 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 |
| River Mill Clackamas County | 85 | 1911 | High | Satisfactory |
| Rock Creek Dam Malheur County | 17 | 1939 | High | Fair |
| Rock Creek (Wasco) Wasco County | 51 | 1947 | High | Fair |
| Round Butte Jefferson County | 440 | 1964 | High | Fair |
| Sams Valley Jackson County | 61 | 1956 | High | Fair |
| Santa Clara Lane County | 17 | 1976 | High | Satisfactory |
| Scoggins Dam Washington County | 151 | 1975 | High | Not Available |
| Seaside City Clatsop County | 45 | 1996 | High | Satisfactory |
| Silver Creek Marion County | 65 | 1975 | High | Fair |
| Smith Linn County | 235 | 1963 | High | Unsatisfactory |
| Soda Springs Douglas County | 127 | 1952 | High | Fair |
| Spring Lake Lincoln County | 26 | — | High | Satisfactory |
| Strong Josephine County | 48 | 1926 | High | Fair |
| Sunriver Effluent Lagoon Deschutes County | 30 | 1998 | High | Satisfactory |
| Tarheel Coos County | 20 | 1924 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.