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 |
|---|---|---|---|---|---|---|---|
| 7-Up Sea | Montana | Fallon | 25 | Low | — | 1949 | Irrigation |
| Sheep Buyer | Montana | Chouteau | 25 | Low | — | 1905 | Fire Protection, Stock, Or ... |
| Deep Coulee | Montana | Petroleum | 25 | Low | — | 1971 | Water Supply |
| Win #1 | Montana | Richland | 25 | Low | — | 1947 | Fire Protection, Stock, Or ... |
| Stewart | Montana | Chouteau | 25 | Low | — | 1954 | Fire Protection, Stock, Or ... |
| Hey Joe Reservoir | Montana | Fergus | 25 | Low | — | 1962 | Fire Protection, Stock, Or ... |
| East Blacktail | Montana | Rosebud | 25 | Significant | — | 1952 | Irrigation |
| Hannaland #1 | Montana | McCone | 25 | Low | — | 1944 | Fire Protection, Stock, Or ... |
| Fink Reservoir | Montana | Fergus | 25 | Low | — | 1969 | Fire Protection, Stock, Or ... |
| Langstaff #1 | Montana | Carbon | 25 | Low | — | 1945 | Fire Protection, Stock, Or ... |
| Mill Lake | Montana | Ravalli | 25 | High | Not Rated | 1895 | Irrigation |
| Matador Ranch #8 | Montana | Phillips | 25 | Low | — | 1968 | Fire Protection, Stock, Or ... |
| Coulter #1 | Montana | Garfield | 25 | Low | — | 1955 | Fire Protection, Stock, Or ... |
| Gussie #2 | Montana | Carter | 25 | Low | — | 1940 | Fire Protection, Stock, Or ... |
| Smith (Madison) | Montana | Silver Bow | 25 | Low | Not Available | 1958 | Irrigation |
| Kerns (Rosebud) | Montana | Rosebud | 25 | Significant | — | 1960 | Irrigation |
| Kodak | Montana | Chouteau | 25 | Low | — | 1926 | Fire Protection, Stock, Or ... |
| Erickson #2 | Montana | Rosebud | 25 | Low | — | 1945 | Fire Protection, Stock, Or ... |
| Rafferty #3 | Montana | Custer | 25 | Low | — | 1939 | Fire Protection, Stock, Or ... |
| Physic Creek | Montana | Custer | 25 | Low | — | 1952 | Irrigation |
| Mclean Dam (Hill) | Montana | Hill | 25 | Low | — | 1899 | Irrigation |
| Reed #5 | Montana | Custer | 25 | Low | — | 1952 | Fire Protection, Stock, Or ... |
| Phantom Coulee Reservoir | Montana | Chouteau | 25 | Significant | — | 1906 | Fire Protection, Stock, Or ... |
| Half-Pint | Montana | Teton | 25 | Low | — | 1960 | Fire Protection, Stock, Or ... |
| Mcconnell | Montana | Blaine | 25 | Low | — | 1983 | Fire Protection, Stock, Or ... |
| Robin Hood #1 | Montana | Meagher | 25 | Low | — | 1965 | Irrigation |
| Smurfit-Stone Container Storage Ponds | Montana | Missoula | 25 | Significant | — | — | |
| O J Rindal | Montana | Fergus | 25 | Low | — | 1960 | Fire Protection, Stock, Or ... |
| Diogenes | Montana | Chouteau | 25 | Low | — | 1960 | Fire Protection, Stock, Or ... |
| Jurica #1 | Montana | Powder River | 25 | Significant | — | 1941 | Fire Protection, Stock, Or ... |
| Mothershead, R. | Montana | McCone | 25 | Low | — | 1960 | Irrigation |
| Dolabriform | Montana | Chouteau | 25 | Low | — | 1965 | Fire Protection, Stock, Or ... |
| Mcferran #1 | Montana | Big Horn | 25 | Low | — | 1928 | Fire Protection, Stock, Or ... |
| Lester #1 | Montana | Carbon | 25 | Low | — | 1941 | Fire Protection, Stock, Or ... |
| Dreyer Brothers INCorporated #1 | Montana | McCone | 25 | Low | — | 1964 | Fire Protection, Stock, Or ... |
| Pollux | Montana | Chouteau | 25 | Low | — | 1960 | Fire Protection, Stock, Or ... |
| Squiggles #1 | Montana | Chouteau | 25 | Low | — | 1965 | Fire Protection, Stock, Or ... |
| Buck | Montana | Dawson | 25 | Low | — | 1955 | Fire Protection, Stock, Or ... |
| Shawver #1 | Montana | Garfield | 25 | Low | — | 1940 | Fire Protection, Stock, Or ... |
| Spring-Miller | Montana | Garfield | 25 | Low | — | 1958 | Fire Protection, Stock, Or ... |
| Miner Farms #1 | Montana | Daniels | 25 | Low | — | 1940 | Fire Protection, Stock, Or ... |
| Berthelote | Montana | Toole | 25 | Low | — | 1955 | Irrigation |
| Pollocks Jh Valley of The Moon | Montana | Missoula | 25 | Low | — | 1960 | Fire Protection, Stock, Or ... |
| Cockran Grazing #5 | Montana | Carter | 25 | Low | — | 1965 | Fire Protection, Stock, Or ... |
| Spring Creek Lake (Cascade) | Montana | Cascade | 25 | Low | — | 1930 | Irrigation |
| Swart #9 | Montana | Rosebud | 25 | Low | — | 1956 | Fire Protection, Stock, Or ... |
| Ron Jacobson Dam | Montana | Lake | 25 | Low | — | 1977 | Irrigation |
| Michigan | Montana | Hill | 25 | Low | — | 1964 | Fire Protection, Stock, Or ... |
| Staples | Montana | Glacier | 25 | Low | — | 1950 | Fire Protection, Stock, Or ... |
| Veseth and Veseth #4 | Montana | Phillips | 25 | Low | — | 1935 | Fire Protection, Stock, Or ... |
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.