71Total Dams
10High Hazard
4Significant
Dam Safety in Malheur County, Oregon
Malheur County has 71 dams tracked in the National Inventory of Dams. Of these, 10 are classified as high hazard — meaning failure would probably cause loss of human life. Another 4 carry a significant hazard classification. Currently, 9 dams have a condition assessment of poor or unsatisfactory.
The average dam in Malheur County is 76 years old. The most common purpose is irrigation. The tallest dam is Owyhee Dam at 417 ft.
Explore more: Oldest dams in Oregon · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Owyhee Dam | High | Not assessed | 417 | Irrigation | 1932 |
| Bully Creek Dam | High | Not assessed | 121 | Flood Risk Reduction | 1963 |
| Willow Creek 3 (malheur) | High | Unsatisfactory | 110 | Irrigation | 1944 |
| Agency Valley Dam | High | Not assessed | 110 | Flood Risk Reduction | 1934 |
| Warm Springs Dam | High | Not assessed | 106 | Irrigation | 1919 |
| Crowley | High | Unsatisfactory | 90 | Irrigation | 1938 |
| Antelope | High | Satisfactory | 60 | Irrigation | 1923 |
| Pole Creek | High | Poor | 58 | Irrigation | 1944 |
| Lonesome Lake | High | Poor | 35 | Irrigation | |
| Rock Creek Dam | High | Fair | 17 | Fish and Wildlife Pond | 1939 |
| Star Mountain Reservoir | Significant | Not assessed | 68 | Irrigation | 1961 |
| Love Reservoir (malheur) | Significant | Not assessed | 44 | Irrigation | 1907 |
| Parsnip Creek Diversion | Significant | Not assessed | 42 | Irrigation | 1980 |
| Moores Hollow | Significant | Not assessed | 35 | Irrigation | 1964 |
| Vaughn Reservoir (malheur) | Low | Not assessed | 70 | Irrigation | 1959 |
| Murphy Dam | Low | Not assessed | 62 | Irrigation | 1950 |
| N. Fk. Indian Creek Reservoir | Low | Not assessed | 59 | Irrigation | 1951 |
| Dickson Reservoir | Low | Not assessed | 48 | Irrigation | 1949 |
| Echave Reservoir (malheur) | Low | Not assessed | 35 | Irrigation | 1954 |
| Anderson-lower (malheur) | Low | Not assessed | 34 | Irrigation | 1917 |
| Jaca Dam | Low | Not assessed | 34 | Irrigation | |
| Vane Ranch Reservoir | Low | Not assessed | 33 | Irrigation | 1950 |
| Morrison Dam | Low | Poor | 33 | Water Supply | 1911 |
| S. Fork Squaw Creek Dam | Low | Poor | 33 | Recreation | 1970 |
| Cob Creek Dam | Low | Not assessed | 31 | Irrigation | 1962 |
| Chevally Reservoir | Low | Not assessed | 30 | Irrigation | 1933 |
| Somerville, the Reservoir | Low | Not assessed | 30 | Irrigation | 1912 |
| Crows Nest Reservoir | Low | Satisfactory | 29 | Other | 2004 |
| Deary Reservoir | Low | Not assessed | 28 | Irrigation | 1937 |
| Parsnip Creek Reservoir | Low | Not assessed | 28 | Irrigation | 1960 |
| South Cottonwood Creek Reservoir | Low | Poor | 28 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Blevin Dam | Low | Not assessed | 26 | Irrigation | 1954 |
| Star Creek | Low | Not assessed | 26 | Irrigation | 1951 |
| Hicks Canyon Dam | Low | Not assessed | 26 | Water Supply | 1979 |
| Steer Canyon Dam | Low | Poor | 26 | Recreation | 1954 |
| Twin Springs Dam | Low | Fair | 26 | Water Supply | 2004 |
| Lockett Reservoir | Low | Not assessed | 25 | Irrigation | 1917 |
| Hawks Nest Reservoir | Low | Not assessed | 25 | Irrigation | 1961 |
| Fred Scott Reservoir | Low | Not assessed | 24 | Irrigation | 1921 |
| Salt Lick Reservoir | Low | Not assessed | 23 | Irrigation | 1933 |
| Rock House Reservoir (malheur) | Low | Not assessed | 22 | Irrigation | 1956 |
| Albertson S Reservoir (malheur) (lagoon) | Low | Not assessed | 22 | Irrigation | 1976 |
| Castro Reservoir | Low | Not assessed | 22 | Water Supply | 1982 |
| Arock Diversion Dam | Low | Not assessed | 20 | Irrigation | |
| Hope Reservoir | Low | Not assessed | 19 | Irrigation | |
| Scott Dam | Low | Not assessed | 18 | Irrigation | 1911 |
| Arritola Reservoir | Low | Not assessed | 18 | Irrigation | 1916 |
| MUD Flat Reservoir | Low | Not assessed | 18 | Irrigation | 1917 |
| Wheaton Creek Reservoir | Low | Not assessed | 17 | Irrigation | 1948 |
| Stimmel Reservoir | Low | Not assessed | 17 | Irrigation | 1921 |
| Dowell Reservoir | Low | Not assessed | 17 | Irrigation | 1989 |
| Easterday Reservoir | Low | Not assessed | 16 | Irrigation | 1948 |
| Odell, Ben | Low | Not assessed | 16 | Irrigation | 1954 |
| Chapman Upper | Low | Not assessed | 15 | Irrigation | 1948 |
| Butte | Low | Not assessed | 14 | Irrigation | 1918 |
| Beer S Reservoir | Low | Not assessed | 14 | Irrigation | 1914 |
| Maher Dam | Low | Not assessed | 14 | Irrigation | 1934 |
| Box Springs Reservoir | Low | Not assessed | 13 | Irrigation | 1928 |
| Turnbull Peak Reservoir | Low | Not assessed | 13 | Irrigation | 1983 |
| Mc Nulty Dam | Low | Poor | 13 | Fire Protection, Stock, Or Small Fish Pond | 2004 |
| Copeland Reservoir | Low | Not assessed | 12 | Irrigation | 1917 |
| Upper Clark Reservoir | Low | Not assessed | 12 | Water Supply | 2004 |
| Riley Horn Dam | Low | Not assessed | 12 | Water Supply | 1961 |
| Amalgamated Sugar | Low | Not assessed | 11 | Other | 1984 |
| Greely Dam | Low | Not assessed | 11 | Flood Risk Reduction | 2004 |
| Lower Clark Reservoir | Low | Not assessed | 11 | Other | 2004 |
| Shumway Reservoir | Low | Not assessed | 10 | Irrigation | 1921 |
| Corliss | Low | Not assessed | 10 | Irrigation | 1919 |
| Becker | Low | Not assessed | 10 | Irrigation | 1927 |
| MUD Creek #1 Reservoir | Low | Not assessed | 10 | Other | 1957 |
| MUD Creek Dam | Low | Not assessed | 7 | Water Supply | 1961 |