55Total Dams
5High Hazard
1Significant
Dam Safety in Petroleum County, Montana
Petroleum County has 55 dams tracked in the National Inventory of Dams. Of these, 5 are classified as high hazard — meaning failure would probably cause loss of human life. Another 1 carry a significant hazard classification. Currently, 3 dams have a condition assessment of poor or unsatisfactory.
The average dam in Petroleum County is 67 years old. The most common purpose is fire protection, stock, or small fish pond. The tallest dam is Petrolia at 76 ft.
Explore more: Oldest dams in Montana · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Petrolia | High | Poor | 76 | Irrigation | 1951 |
| Dry Blood Creek Dam | High | Fair | 40 | Flood Risk Reduction | 1964 |
| Yellow Water Main Dam | High | Fair | 37 | Irrigation | 1938 |
| Duck Creek Retention Dam | High | Satisfactory | 16 | Fire Protection, Stock, Or Small Fish Pond | 2003 |
| Yellow Water Dike | High | Satisfactory | 11 | Irrigation | 1938 |
| Torger Dam | Significant | Not assessed | 18 | Irrigation | 1976 |
| South Fork Dry Blood Creek Detention Dam | Low | Fair | 36 | Flood Risk Reduction | 1963 |
| Drag Creek Retention Dam | Low | Fair | 35 | Flood Risk Reduction | 1964 |
| State-klamert | Low | Not assessed | 32 | ||
| Hassett #1 | Low | Not assessed | 30 | Irrigation | 1944 |
| Hassett #3 | Low | Not assessed | 30 | Irrigation | 1958 |
| Manuel #1 | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1949 |
| Headman Dam | Low | Not assessed | 30 | ||
| L&v Rowten #1 | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1963 |
| Shale Creek | Low | Not assessed | 29 | Irrigation | 1957 |
| Gardner Dam | Low | Not assessed | 27 | Irrigation | 1989 |
| Lewis Dam #1 Pd | Low | Not assessed | 26 | ||
| Deep Coulee | Low | Not assessed | 25 | Water Supply | 1971 |
| Sharkey #1 | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Damschen #2 | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Howard Coulee #1 | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1939 |
| Weingart Land & Livestock #1 | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Bethel #11 | Low | Not assessed | 22 | Fire Protection, Stock, Or Small Fish Pond | 1957 |
| B Shaw #1 | Low | Not assessed | 22 | Irrigation | 1947 |
| Iverson Retention Dam | Low | Poor | 22 | Flood Risk Reduction | 1968 |
| Goffena #2 | Low | Not assessed | 21 | Fire Protection, Stock, Or Small Fish Pond | 1953 |
| Bethel #1 | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| Bethel #4 | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| Goffena #4 | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1948 |
| Brady #4 | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1945 |
| Manuel #2 | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1969 |
| Dovetail #1 | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Sandman #1 | Low | Not assessed | 20 | Irrigation | 1960 |
| Clamhopper #1 | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| N Barrett #2 | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1938 |
| Delaney #2 | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Eliasson (petroleum) | Low | Not assessed | 19 | Fire Protection, Stock, Or Small Fish Pond | 1939 |
| Wiggins #3 | Low | Not assessed | 19 | Irrigation | 1967 |
| Felt Coulee Dam | Low | Not assessed | 19 | Irrigation | 1971 |
| Zimmerman Retention Dam #1 | Low | Not assessed | 19 | Fire Protection, Stock, Or Small Fish Pond | 2003 |
| Seminary #10 | Low | Not assessed | 18 | Fire Protection, Stock, Or Small Fish Pond | 1950 |
| Bethel #7 | Low | Not assessed | 18 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| Williams Coulee #2 | Low | Not assessed | 18 | Fire Protection, Stock, Or Small Fish Pond | 1951 |
| H Stensvad #1 | Low | Not assessed | 18 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| H Stensvad #2 | Low | Not assessed | 18 | Fire Protection, Stock, Or Small Fish Pond | 1950 |
| Little Bear/us #37 Dam | Low | Poor | 17 | Irrigation | |
| Brady #2 | Low | Not assessed | 16 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Frazer #1 | Low | Not assessed | 15 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| N Barnett #1 | Low | Not assessed | 15 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| Hassett #2 | Low | Not assessed | 15 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Harris #1 | Low | Not assessed | 14 | Irrigation | 1975 |
| Wiggins #2 | Low | Not assessed | 12 | Irrigation | 1955 |
| Ostleer Dam | Low | Not assessed | 12 | Fish and Wildlife Pond | |
| J King #2 | Low | Not assessed | 12 | Fire Protection, Stock, Or Small Fish Pond | 1936 |
| J King #1 | Low | Not assessed | 8 | Fire Protection, Stock, Or Small Fish Pond | 1945 |