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 126–150 of 535
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Shady Creek Crook County | 32 | — | Low | Not Rated |
| S. Fork Squaw Creek Dam Malheur County | 33 | 1970 | Low | Poor |
| Sevan Lake Lake County | 45 | 1977 | Low | Not Rated |
| Scott Dam Malheur County | 18 | 1911 | Low | Not Rated |
| Schmidt, Howard Reservoir Washington County | 38 | 1969 | Low | Not Rated |
| Schmadeke Washington County | 18 | 1971 | Low | Not Rated |
| Scharf Reservoir #2 Polk County | 15 | — | Low | Not Rated |
| Schaefer, Ray Reservoir Clackamas County | 25 | 1965 | Low | Not Rated |
| Sawmill Gulch Reservoir Baker County | 30 | 1916 | Low | Not Rated |
| Salt Lick Reservoir Malheur County | 23 | 1933 | Low | Not Rated |
| Ruddenklau Dam Yamhill County | 18 | 2006 | Low | Not Rated |
| Ruckmans Reservoir Union County | 20 | 1963 | Low | Not Rated |
| Roy Farm Washington County | 14 | 1989 | Low | Not Rated |
| Round Valley Klamath County | 12 | 1956 | Low | Not Rated |
| Round Barn Reservoir Harney County | 12 | 1943 | Low | Not Rated |
| Rohde Reservoir Polk County | 19 | 1967 | Low | Not Rated |
| Rock Quarry Canyon Dam Harney County | 29 | 1948 | Low | Not Rated |
| Rock Lake Baker County | 28 | 1928 | Low | Not Rated |
| Rock House Reservoir (Malheur) Malheur County | 22 | 1956 | Low | Not Rated |
| Rock Creek-Upper (Harney) Harney County | 47 | 1970 | Low | Not Rated |
| Rock Creek Lake (Wheeler) Wheeler County | 48 | 1954 | Low | Not Rated |
| Rock Creek Hatchery Douglas County | 14 | — | Low | Not Rated |
| Rivers End Dam Lake County | 23 | 1997 | Low | Not Rated |
| River Bend No. 2 Marion County | 30 | 1967 | Low | Not Rated |
| Riverbend Landfill Lagoon Yamhill County | 27 | — | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.