Oregon has 25 flood control dams, of which 22 carry a high hazard classification. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate.
| # | Dam | County | Height (ft) | Hazard | Condition | Year |
|---|---|---|---|---|---|---|
| 1 | Cougar Dam | Lane | 519 | High | Not assessed | 1963 |
| 2 | Detroit Dam | Linn | 463 | High | Not assessed | 1953 |
| 3 | Green Peter Dam | Linn | 378 | High | Not assessed | 1967 |
| 4 | Hills Creek Dam | Lane | 341 | High | Not assessed | 1962 |
| 5 | Lookout Point Dam | Lane | 276 | High | Not assessed | 1953 |
| 6 | Blue River Dam | Lane | 270 | High | Not assessed | 1968 |
| 7 | Arthur R. Bowman Dam | Crook | 245 | High | Not assessed | 1961 |
| 8 | Applegate Dam | Jackson | 242 | High | Not assessed | 1980 |
| 9 | Fall Creek Dam | Lane | 205 | High | Not assessed | 1965 |
| 10 | Mason Dam | Baker | 173 | High | Not assessed | 1968 |
| 11 | Mckay Dam | Umatilla | 165 | High | Not assessed | 1927 |
| 12 | Willow Creek Dam | Morrow | 160 | High | Not assessed | 1982 |
| 13 | Dorena Dam | Lane | 154 | High | Not assessed | 1949 |
| 14 | Foster Dam | Linn | 126 | High | Not assessed | 1967 |
| 15 | Bully Creek Dam | Malheur | 121 | High | Not assessed | 1963 |
| 16 | Dexter Dam | Lane | 117 | High | Not assessed | 1955 |
| 17 | Agency Valley Dam | Malheur | 110 | High | Not assessed | 1934 |
| 18 | Cottage Grove Dam | Lane | 103 | High | Not assessed | 1942 |
| 19 | Fish Lake Dam | Jackson | 50 | High | Not assessed | 1908 |
| 20 | Bullard Creek F.r.s. ( Lake) | Lake | 35 | High | Satisfactory | |
| 21 | Mcnary Lock and Dam - Richland Levee 4a | Benton | 30 | High | Not assessed | 1952 |
| 22 | Plat I | Douglas | 30 | High | Satisfactory | 1967 |
| 23 | Fourmile Lake Dam | Klamath | 25 | Low | Not assessed | 1922 |
| 24 | Emigrant Spillway Dike | Jackson | 14 | Low | Not assessed | 1960 |
| 25 | Greely Dam | Malheur | 11 | Low | Not assessed | 2004 |