Browse Dams
3,029 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 3,029 dams from the NID database. Each record includes dam name, location, physical dimensions, hazard potential classification, condition assessment, purpose, owner information, and emergency action plan status. Use the filters below to search by state, hazard level, condition, or keyword.
| Name | State | County | Height (ft) | Hazard | Condition | Year | Purpose |
|---|---|---|---|---|---|---|---|
| Whitetail (Meagher) | Montana | Meagher | 30 | Low | - | 1961 | Fire Protection, Stock, Or ... |
| Hassett #3 | Montana | Petroleum | 30 | Low | - | 1958 | Irrigation |
| Walden | Montana | Liberty | 30 | Low | - | 1937 | Fire Protection, Stock, Or ... |
| Fannon #1 | Montana | Garfield | 30 | Low | - | 1938 | Fire Protection, Stock, Or ... |
| Wolff | Montana | Dawson | 30 | Low | - | 1946 | Fire Protection, Stock, Or ... |
| Wm Knight #2 | Montana | Phillips | 30 | Low | - | 1942 | Other |
| D G Orchowski #1 | Montana | Big Horn | 30 | Low | - | 1963 | Irrigation |
| Herzog #1 | Montana | Custer | 30 | Low | - | 1952 | Fire Protection, Stock, Or ... |
| Antares | Montana | Judith Basin | 30 | Low | - | 1954 | Irrigation |
| Durfee Creek Dam | Montana | Fergus | 30 | Low | - | - | Irrigation |
| Hanford | Montana | Chouteau | 30 | Low | - | 1962 | Fire Protection, Stock, Or ... |
| Crystal Lake | Montana | Lincoln | 30 | Low | - | 1950 | Other |
| Miller Reservoir (Blaine) | Montana | Blaine | 30 | Low | - | 1954 | Fire Protection, Stock, Or ... |
| Cabin | Montana | Prairie | 30 | Low | Not Available | 1954 | Fire Protection, Stock, Or ... |
| Claribell #3 | Montana | Garfield | 30 | Low | - | 1957 | Fire Protection, Stock, Or ... |
| Loubren INCorporated #1 | Montana | Toole | 30 | Low | - | 1940 | Water Supply |
| Edward Enterprises | Montana | Hill | 30 | Low | - | 1978 | Fire Protection, Stock, Or ... |
| Lazy Jd #10 | Montana | Fergus | 30 | Low | - | 1958 | Fire Protection, Stock, Or ... |
| Parker Reservoir | Montana | Powell | 30 | Low | - | 1961 | Irrigation |
| Dawson Ranch #1 | Montana | Cascade | 30 | Low | - | 1948 | Flood Risk Reduction |
| High Lake | Montana | Ravalli | 30 | High | Poor | 1938 | Irrigation |
| Bar 69 #5 | Montana | Rosebud | 30 | Low | - | 1955 | Fire Protection, Stock, Or ... |
| Deadmans Basin Water Supply Canal Storage Reservoir #5 | Montana | Wheatland | 30 | Significant | - | - | Water Supply |
| Swart #2 | Montana | Rosebud | 30 | Low | - | 1964 | Fire Protection, Stock, Or ... |
| Olson (Prairie) | Montana | Prairie | 30 | Low | - | 1963 | Irrigation |
| Letz Lake | Montana | Pondera | 30 | Low | - | 1952 | Fire Protection, Stock, Or ... |
| Bass (Rosebud) | Montana | Rosebud | 30 | Low | - | 1963 | Fire Protection, Stock, Or ... |
| Good Ol West | Montana | Chouteau | 30 | Low | - | 1960 | Fire Protection, Stock, Or ... |
| Headman Dam | Montana | Petroleum | 30 | Low | Not Rated | - | |
| L&V Rowten #1 | Montana | Petroleum | 30 | Low | - | 1963 | Fire Protection, Stock, Or ... |
| Robinson | Montana | Phillips | 30 | Low | - | 1945 | Flood Risk Reduction |
| Brown Coulee (Rosebud) | Montana | Rosebud | 30 | Low | - | 1950 | Irrigation |
| Crow #2 | Montana | McCone | 30 | Significant | - | 1973 | Fire Protection, Stock, Or ... |
| Michel #1 | Montana | Garfield | 30 | Low | - | 1954 | Fire Protection, Stock, Or ... |
| Hollar | Montana | Wibaux | 30 | Low | - | 1949 | Fire Protection, Stock, Or ... |
| Buffalo Wallow Dam | Montana | Fergus | 30 | Low | Not Rated | - | |
| Gearhart #13 | Montana | Rosebud | 30 | Low | - | 1953 | Fire Protection, Stock, Or ... |
| Lepus | Montana | Missoula | 30 | Low | - | 1956 | Irrigation |
| Sediment Control Dam | Montana | Big Horn | 30 | Low | Not Available | - | Other |
| Private Reservoir | Montana | Phillips | 30 | Low | - | 1935 | Fire Protection, Stock, Or ... |
| Wanken | Montana | Toole | 30 | Significant | - | 1928 | Fire Protection, Stock, Or ... |
| Dick Golie Wildlife Dam | Montana | Cascade | 30 | Low | - | 1965 | Recreation |
| Guthridge | Montana | Rosebud | 30 | Low | - | 1967 | Fire Protection, Stock, Or ... |
| Mesaros | Montana | Cascade | 30 | Low | - | 1958 | Fire Protection, Stock, Or ... |
| Berrys Land #4 | Montana | McCone | 30 | Low | - | 1975 | Fire Protection, Stock, Or ... |
| Miller Bros | Montana | Hill | 30 | Low | - | 1970 | Recreation |
| Halverson Ranch | Montana | Chouteau | 30 | Low | - | 1967 | Fire Protection, Stock, Or ... |
| Wold | Montana | Dawson | 30 | Low | - | 1936 | Irrigation |
| Petticoat Junction | Montana | Fergus | 30 | Low | - | 1963 | Fire Protection, Stock, Or ... |
| Billings #3 | Montana | Garfield | 30 | Low | - | 1938 | Irrigation |
Frequently Asked Questions
Hazard potential is based on the consequences of dam failure, not the condition of the dam. High hazard means loss of human life is probable. Significant means economic and environmental losses are expected but no probable loss of life. Low means minimal losses are expected. The classification considers downstream population, infrastructure, and environmental resources.
Condition ratings reflect the physical state of the dam based on periodic inspections. Satisfactory means no deficiencies found. Fair means minor issues exist but no immediate action needed. Poor means safety deficiencies require remedial action. Unsatisfactory means the dam is unsafe and immediate corrective action is required.
Yes. Use the search field above to find dams by name. You can also combine the search with state, hazard, and condition filters to narrow your results. Each dam record links to a detail page with complete information.