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 |
|---|---|---|---|---|---|---|---|
| G Newman #1 | Montana | Rosebud | 25 | Low | - | 1961 | Fire Protection, Stock, Or ... |
| State #3 | Montana | Liberty | 25 | Low | - | 1938 | Fire Protection, Stock, Or ... |
| Angie | Montana | McCone | 25 | Significant | - | 1943 | Fire Protection, Stock, Or ... |
| Peterson Reservoir (Rosebud) | Montana | Rosebud | 25 | Significant | - | 1937 | Fire Protection, Stock, Or ... |
| Mistress Leader | Montana | Hill | 25 | Low | - | 1956 | Fire Protection, Stock, Or ... |
| Engdall Reservoir #2 | Montana | Garfield | 25 | Low | - | 1934 | Fire Protection, Stock, Or ... |
| Doesitall | Montana | Liberty | 25 | Low | - | 1950 | Fire Protection, Stock, Or ... |
| Gordan Lightfoot | Montana | Teton | 25 | Low | - | 1972 | Fire Protection, Stock, Or ... |
| Spring Creek Lake (Cascade) | Montana | Cascade | 25 | Low | - | 1930 | Irrigation |
| Hannaland #1 | Montana | McCone | 25 | Low | - | 1944 | Fire Protection, Stock, Or ... |
| Mohair #2 | Montana | Blaine | 25 | Low | - | 1945 | Irrigation |
| Rocky | Montana | Phillips | 25 | Low | - | 1947 | Fire Protection, Stock, Or ... |
| Win #1 | Montana | Richland | 25 | Low | - | 1947 | Fire Protection, Stock, Or ... |
| Cockran Grazing #1 | Montana | Carter | 25 | Low | - | 1959 | Fire Protection, Stock, Or ... |
| Coffee #2 | Montana | Rosebud | 25 | Low | - | 1950 | Fire Protection, Stock, Or ... |
| Alkali Flat | Montana | Toole | 25 | Low | - | 1965 | Fire Protection, Stock, Or ... |
| Sharkey #1 | Montana | Petroleum | 25 | Low | - | 1965 | Fire Protection, Stock, Or ... |
| Romain F. Pond | Montana | Chouteau | 25 | Low | - | 1952 | Recreation |
| Ron Jacobson Dam | Montana | Lake | 25 | Low | - | 1977 | Irrigation |
| Howard Coulee #1 | Montana | Petroleum | 25 | Low | - | 1939 | Fire Protection, Stock, Or ... |
| Born Free | Montana | Richland | 25 | Low | - | 1960 | Fire Protection, Stock, Or ... |
| Martin #1 (Phillips) | Montana | Phillips | 25 | Low | - | 1953 | Fire Protection, Stock, Or ... |
| Cockran Grazing #5 | Montana | Carter | 25 | Low | - | 1965 | Fire Protection, Stock, Or ... |
| Fannon #2 | Montana | Garfield | 25 | Low | - | 1939 | Fire Protection, Stock, Or ... |
| Lammers #1 | Montana | Wheatland | 25 | Low | - | 1984 | Irrigation |
| Yellow Sarpy | Montana | Treasure | 25 | Low | - | 1965 | Fire Protection, Stock, Or ... |
| Robbie | Montana | Sweet Grass | 25 | Significant | - | 1977 | Irrigation |
| Spring-Miller | Montana | Garfield | 25 | Low | - | 1958 | Fire Protection, Stock, Or ... |
| Smurfit-Stone Container Storage Ponds | Montana | Missoula | 25 | Significant | - | - | |
| Dolabriform | Montana | Chouteau | 25 | Low | - | 1965 | Fire Protection, Stock, Or ... |
| Deep Coulee | Montana | Petroleum | 25 | Low | - | 1971 | Water Supply |
| Miller Lake (Powell) | Montana | Powell | 25 | Low | - | 1962 | Irrigation |
| Wb Goffena #1 | Montana | Musselshell | 25 | Low | - | 1955 | Fire Protection, Stock, Or ... |
| Dog Star | Montana | Chouteau | 25 | Low | - | 1962 | Fire Protection, Stock, Or ... |
| Nollmeyer #1 | Montana | Park | 25 | Low | - | 1975 | Fire Protection, Stock, Or ... |
| Big Deal | Montana | Valley | 25 | Low | - | 1952 | Fire Protection, Stock, Or ... |
| Davis (Richland) | Montana | Richland | 25 | Low | - | 1939 | Fire Protection, Stock, Or ... |
| Woodchuck | Montana | Missoula | 25 | Low | - | 1960 | Irrigation |
| Hutchison #2 | Montana | Powder River | 25 | Low | - | 1950 | Fire Protection, Stock, Or ... |
| Dreyer Brothers INCorporated #2 | Montana | McCone | 25 | Low | - | 1975 | Fire Protection, Stock, Or ... |
| Mothershead, R. | Montana | McCone | 25 | Low | - | 1960 | Irrigation |
| K and L Mcdowell #5 | Montana | Carter | 25 | Low | - | 1940 | Fire Protection, Stock, Or ... |
| Fish Lake (Pondera) | Montana | Pondera | 25 | Low | - | 1960 | Irrigation |
| Voorhees | Montana | Richland | 25 | Low | - | 1969 | Fire Protection, Stock, Or ... |
| Kodak | Montana | Chouteau | 25 | Low | - | 1926 | Fire Protection, Stock, Or ... |
| Little Warm Spring Creek | Montana | Phillips | 25 | Low | - | 1938 | Irrigation |
| Moulton Reservoir #2 | Montana | Silver Bow | 25 | Low | - | 1950 | Fire Protection, Stock, Or ... |
| Dreyer Brothers INCorporated #1 | Montana | McCone | 25 | Low | - | 1964 | Fire Protection, Stock, Or ... |
| Dietz Storage #8 | Montana | Big Horn | 25 | Low | - | 2007 | Other |
| Mcferran #3 | Montana | Big Horn | 25 | Low | - | 1928 | 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.