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 |
|---|---|---|---|---|---|---|---|
| Pishkun Dike 3 | Montana | Teton | 28 | High | Not Available | 1931 | Irrigation |
| Lucas #1 | Montana | Meagher | 28 | Low | — | 1939 | Irrigation |
| Watts #1 | Montana | Custer | 28 | Low | — | 1912 | Irrigation |
| Nelson Dike C | Montana | Phillips | 28 | High | Not Available | 1915 | Irrigation |
| M Hardy #3 | Montana | Custer | 28 | Low | — | 1958 | Irrigation |
| Winkum Dam | Montana | Valley | 28 | Low | Satisfactory | — | |
| Stellar Lake | Montana | Rosebud | 28 | Low | — | 1957 | Irrigation |
| Jessup Mill Pond Dam | Montana | Flathead | 28 | High | Satisfactory | 1941 | Water Supply |
| Sportsman | Montana | Fallon | 28 | Significant | — | 1955 | Recreation |
| Linde | Montana | Richland | 28 | Significant | — | 1949 | Irrigation |
| Robinson #3 | Montana | Custer | 28 | Low | — | 1956 | Irrigation |
| Pyba Reservoir | Montana | Garfield | 28 | Significant | — | 1952 | Irrigation |
| Black Sea Reservoir | Montana | Rosebud | 28 | Low | — | 1950 | Fire Protection, Stock, Or ... |
| South Fork Detention Dam | Montana | Prairie | 28 | Low | Poor | 1964 | Fire Protection, Stock, Or ... |
| Dordrecht | Montana | Judith Basin | 28 | Low | — | 1968 | Fire Protection, Stock, Or ... |
| Wheatley Farms #2 | Montana | McCone | 28 | Low | — | 1947 | Fire Protection, Stock, Or ... |
| Sister Sledge | Montana | Liberty | 28 | Low | — | 1960 | Fire Protection, Stock, Or ... |
| Robinson #1 | Montana | Custer | 28 | Low | — | 1940 | Fire Protection, Stock, Or ... |
| Mccarter West Dam | Montana | Toole | 28 | Significant | — | 1953 | Irrigation |
| Frog Dam | Montana | Richland | 28 | Low | — | 1973 | Fire Protection, Stock, Or ... |
| Pfaff Irrigation | Montana | Prairie | 28 | Significant | — | 1957 | Irrigation |
| Balder Reservoir | Montana | McCone | 28 | Significant | — | 1962 | Flood Risk Reduction |
| Cbc Dam | Montana | Garfield | 27 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Kiff Res 1 | Montana | Meagher | 27 | Low | — | 1935 | Irrigation |
| Halverson | Montana | Valley | 27 | Significant | — | 1954 | Irrigation |
| Boot Lake Dam | Montana | Beaverhead | 27 | High | Poor | 1912 | Irrigation |
| Killen #7 | Montana | Rosebud | 27 | Low | — | 1951 | Fire Protection, Stock, Or ... |
| Oh Henry'S Place | Montana | Toole | 27 | Low | — | 1948 | Fire Protection, Stock, Or ... |
| Mclean (Toole) | Montana | Toole | 27 | Low | — | 1950 | Fire Protection, Stock, Or ... |
| Jones (Valley) | Montana | Valley | 27 | Low | — | 1951 | Irrigation |
| Lemon Hart | Montana | Carter | 27 | Low | — | 1960 | Fire Protection, Stock, Or ... |
| Miller | Montana | Sheridan | 27 | Low | — | 1974 | Recreation |
| Goldberg East Dam | Montana | Granite | 27 | Low | Not Available | 1956 | Irrigation |
| Porta | Montana | Custer | 27 | Low | — | 1954 | Irrigation |
| Wheat Crop | Montana | Wheatland | 27 | Low | — | 1938 | Fire Protection, Stock, Or ... |
| Chanlin | Montana | Phillips | 27 | Low | — | 1951 | Irrigation |
| Fortune #5 | Montana | Custer | 27 | Low | — | 1970 | Fire Protection, Stock, Or ... |
| Gull Wing Detention Dam | Montana | Phillips | 27 | Low | Unsatisfactory | 1968 | Flood Risk Reduction |
| Norman #2 | Montana | Fergus | 27 | Low | — | 1999 | Fire Protection, Stock, Or ... |
| Hook #70 | Montana | Rosebud | 27 | Low | — | 1953 | Irrigation |
| North Roy | Montana | Fergus | 27 | Low | — | 1964 | Fire Protection, Stock, Or ... |
| Chessman Saddle Dam | Montana | Jefferson | 27 | High | Satisfactory | 1908 | Water Supply |
| Gardner #2 (West Dam) | Montana | Carter | 27 | Low | — | 1964 | Irrigation |
| Sheepshed Detention Dam | Montana | Valley | 27 | Low | Unsatisfactory | 1954 | Flood Risk Reduction |
| Pine Hills | Montana | Custer | 27 | Low | — | 1950 | Fire Protection, Stock, Or ... |
| Marsh Dam | Montana | Sheridan | 27 | Low | — | 1967 | Fire Protection, Stock, Or ... |
| Vr-2 Detention Dam | Montana | Valley | 27 | Low | Poor | 1936 | Fire Protection, Stock, Or ... |
| Misplaced Dam | Montana | Garfield | 27 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Bjarne #1 | Montana | Daniels | 27 | Low | — | 1951 | Fire Protection, Stock, Or ... |
| Sand Rock | Montana | Carter | 27 | Significant | — | 1937 | 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.