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 |
|---|---|---|---|---|---|---|---|
| Keil Ranch Reservoir #1 | Montana | Pondera | 30 | Low | — | 1940 | Fire Protection, Stock, Or ... |
| Payton #1 | Montana | Prairie | 30 | Low | — | 1956 | Fire Protection, Stock, Or ... |
| Cabin | Montana | Prairie | 30 | Low | Not Available | 1954 | Fire Protection, Stock, Or ... |
| Eagle Land #1 | Montana | Big Horn | 30 | Low | — | 1940 | Fire Protection, Stock, Or ... |
| Herzog #1 | Montana | Custer | 30 | Low | — | 1952 | Fire Protection, Stock, Or ... |
| Bs Kincheloe | Montana | Rosebud | 30 | Low | — | 1950 | Fire Protection, Stock, Or ... |
| Haymaker Dam | Montana | Wheatland | 30 | Low | — | 1978 | Fire Protection, Stock, Or ... |
| Wheatley Farms INC #1 | Montana | McCone | 30 | Low | — | 1949 | Fire Protection, Stock, Or ... |
| Hirschy | Montana | Beaverhead | 30 | Low | — | 1967 | Irrigation |
| Wild Flower | Montana | Musselshell | 30 | Low | — | 1966 | Fire Protection, Stock, Or ... |
| Staff #2 | Montana | Blaine | 30 | Low | — | 1914 | Irrigation |
| Jo | Montana | Fergus | 30 | Low | — | 1962 | Fire Protection, Stock, Or ... |
| Mr Mito Bars | Montana | Hill | 30 | Low | — | 1960 | Fire Protection, Stock, Or ... |
| Indian Judy | Montana | Judith Basin | 30 | Low | — | 1960 | Irrigation |
| Doig Brothers | Montana | Meagher | 30 | Low | — | 1942 | Irrigation |
| Petticoat Junction | Montana | Fergus | 30 | Low | — | 1963 | Fire Protection, Stock, Or ... |
| Foulweather Detention Dam | Montana | Valley | 30 | Low | Poor | 1966 | Flood Risk Reduction |
| Bull Pen #2 | Montana | Pondera | 30 | Low | — | 1960 | Fire Protection, Stock, Or ... |
| Olson (Prairie) | Montana | Prairie | 30 | Low | — | 1963 | Irrigation |
| Priced Name | Montana | Powell | 30 | Low | — | 1962 | Irrigation |
| Engdall Reservoir #1 | Montana | Garfield | 30 | Low | — | 1937 | Fire Protection, Stock, Or ... |
| Loomis, D. #2 | Montana | Garfield | 30 | Low | — | 1965 | Fire Protection, Stock, Or ... |
| Charter #1 | Montana | Yellowstone | 30 | Low | — | 1979 | Fire Protection, Stock, Or ... |
| Bull Pen #1 | Montana | Pondera | 30 | Low | — | 1960 | Fire Protection, Stock, Or ... |
| Hollandsworth | Montana | Liberty | 30 | Low | — | 1946 | Fire Protection, Stock, Or ... |
| Wicker Basket #2 | Montana | Fergus | 30 | Low | — | 1962 | Fire Protection, Stock, Or ... |
| Balsam #3 | Montana | Custer | 30 | Low | — | 1945 | Fire Protection, Stock, Or ... |
| Earl Krietel #4 | Montana | Carter | 30 | Low | — | 1956 | Irrigation |
| Sediment Control Dam | Montana | Big Horn | 30 | Low | Not Available | — | Other |
| Edward Enterprises | Montana | Hill | 30 | Low | — | 1978 | Fire Protection, Stock, Or ... |
| Gearhart #13 | Montana | Rosebud | 30 | Low | — | 1953 | Fire Protection, Stock, Or ... |
| Buffalo Wallow Dam | Montana | Fergus | 30 | Low | Not Rated | — | |
| Needle Butte Reservoir | Montana | Rosebud | 30 | Low | — | 1953 | Fire Protection, Stock, Or ... |
| Hollar | Montana | Wibaux | 30 | Low | — | 1949 | Fire Protection, Stock, Or ... |
| Sagebrush #2 | Montana | Phillips | 30 | Low | — | 1967 | Fire Protection, Stock, Or ... |
| Fish (Fergus) | Montana | Fergus | 30 | Significant | — | 1963 | Fire Protection, Stock, Or ... |
| Thibadeau Farm | Montana | Hill | 30 | Low | — | 1937 | Fire Protection, Stock, Or ... |
| Halverson #1 | Montana | Yellowstone | 30 | Low | — | 1960 | Fire Protection, Stock, Or ... |
| Olson (Richland) | Montana | Richland | 30 | Significant | — | 1958 | Fire Protection, Stock, Or ... |
| Agnes Bob and Noel | Montana | Chouteau | 30 | Low | — | 1957 | Fire Protection, Stock, Or ... |
| Lazy Jd #10 | Montana | Fergus | 30 | Low | — | 1958 | Fire Protection, Stock, Or ... |
| Wold | Montana | Dawson | 30 | Low | — | 1936 | Irrigation |
| Red | Montana | Fergus | 30 | Significant | — | 1963 | Fire Protection, Stock, Or ... |
| Hound Creek | Montana | Cascade | 30 | Low | — | 1953 | Irrigation |
| Roamin'Reservoir | Montana | Chouteau | 30 | Low | — | 1950 | Fire Protection, Stock, Or ... |
| Robin Hood #2 | Montana | Meagher | 30 | Significant | — | 1960 | Irrigation |
| Brown Coulee (Rosebud) | Montana | Rosebud | 30 | Low | — | 1950 | Irrigation |
| Merlin | Montana | Garfield | 30 | Low | — | 1954 | Fire Protection, Stock, Or ... |
| Cool Black Rock | Montana | Hill | 30 | Low | — | 1919 | Fire Protection, Stock, Or ... |
| Wm Knight #2 | Montana | Phillips | 30 | Low | — | 1942 | Other |
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.