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 |
|---|---|---|---|---|---|---|---|
| Ucaliptus | Montana | Toole | 10 | Low | - | 1950 | Fire Protection, Stock, Or ... |
| Thielen #1 | Montana | Fallon | 10 | Low | - | 1962 | Irrigation |
| Really Red | Montana | Lewis and Clark | 10 | Low | - | 1953 | Fire Protection, Stock, Or ... |
| East Axolotl Lake | Montana | Madison | 10 | Low | - | 1945 | Fire Protection, Stock, Or ... |
| R Ereaux #1 | Montana | Phillips | 10 | Low | - | 1962 | Fire Protection, Stock, Or ... |
| Powell #2 (Blaine) | Montana | Blaine | 10 | Low | - | 1935 | Fire Protection, Stock, Or ... |
| Yastremski Dam | Montana | Park | 10 | Low | - | 1950 | Fire Protection, Stock, Or ... |
| Durham | Montana | Madison | 10 | Low | - | 1955 | Fire Protection, Stock, Or ... |
| Bergstrom'S Farms | Montana | Pondera | 10 | Low | - | 1936 | Fire Protection, Stock, Or ... |
| Santa Maria | Montana | Blaine | 10 | Low | - | 1959 | Irrigation |
| Number Twenty Reservoir | Montana | Phillips | 10 | Low | - | 1950 | Fire Protection, Stock, Or ... |
| Saucer #4 | Montana | Prairie | 10 | Low | - | 1964 | Irrigation |
| J R Scott #1 | Montana | Big Horn | 10 | Significant | - | 1953 | Fire Protection, Stock, Or ... |
| T Hackley #1 | Montana | Richland | 10 | Low | - | 1944 | Fire Protection, Stock, Or ... |
| Paulo Dam | Montana | Valley | 10 | Low | Not Rated | 2003 | |
| Dailey Lake | Montana | Park | 10 | Significant | - | 1945 | Fire Protection, Stock, Or ... |
| Robert Bold #3 | Montana | Fergus | 10 | Low | - | 1958 | Fire Protection, Stock, Or ... |
| Staff #1 | Montana | Blaine | 10 | Significant | - | 1910 | Fire Protection, Stock, Or ... |
| Peephole | Montana | Chouteau | 10 | Low | - | 1938 | Fire Protection, Stock, Or ... |
| K L Clark #1 | Montana | Yellowstone | 10 | Low | - | 1950 | Fire Protection, Stock, Or ... |
| Killen #5 | Montana | Rosebud | 10 | Low | - | 1954 | Fire Protection, Stock, Or ... |
| Crow #19 | Montana | Big Horn | 10 | Low | - | 1934 | Fire Protection, Stock, Or ... |
| Him | Montana | Toole | 10 | Low | - | 1900 | Fire Protection, Stock, Or ... |
| Springdale #3 | Montana | Meagher | 10 | Low | - | 1962 | Irrigation |
| Willow Belt | Montana | Cascade | 10 | Low | - | 1951 | Irrigation |
| Mud Lake #1 | Montana | Beaverhead | 10 | Low | - | 1945 | Fire Protection, Stock, Or ... |
| Bergstrom'S Farms #2 | Montana | Pondera | 10 | Low | - | 1936 | Irrigation |
| Neufeld No 2 | Montana | Valley | 10 | Low | - | 1966 | Fire Protection, Stock, Or ... |
| Picard Reservoir | Montana | Roosevelt | 10 | Low | - | 1937 | Fire Protection, Stock, Or ... |
| T-Bar | Montana | Phillips | 10 | Low | - | 1955 | Fire Protection, Stock, Or ... |
| Holly Sugar, Lower | Montana | Richland | 10 | Low | - | 1929 | Irrigation |
| Murphy and Sons #2 | Montana | McCone | 10 | Low | - | 1940 | Fire Protection, Stock, Or ... |
| Larry Pilster #2 | Montana | Carter | 10 | Low | - | 1950 | Fire Protection, Stock, Or ... |
| Walstom | Montana | Pondera | 10 | Significant | - | 1920 | Fire Protection, Stock, Or ... |
| Frenchman Ir. Company #1 | Montana | Phillips | 10 | Significant | - | 1951 | Irrigation |
| Three Pronged Fork Dam | Montana | Chouteau | 10 | Low | - | 1965 | Fire Protection, Stock, Or ... |
| Bassett | Montana | Treasure | 10 | Low | - | 1959 | Fire Protection, Stock, Or ... |
| D'Ewart | Montana | Park | 10 | Low | - | 1951 | Irrigation |
| Grazing Antelope | Montana | Wheatland | 10 | Low | - | 1978 | Fire Protection, Stock, Or ... |
| Leveque Reservoir | Montana | Cascade | 10 | Low | - | 1930 | Fire Protection, Stock, Or ... |
| Porrini | Montana | Lewis and Clark | 10 | Low | - | 1952 | Irrigation |
| A Peterson | Montana | Richland | 10 | Low | - | 1951 | Irrigation |
| Big Timber #37 | Montana | Rosebud | 10 | Low | - | 1953 | Fire Protection, Stock, Or ... |
| Dogwood | Montana | Blaine | 10 | Low | - | 1940 | Fire Protection, Stock, Or ... |
| Nefsy #2 | Montana | Prairie | 10 | Low | - | 1950 | Fire Protection, Stock, Or ... |
| Lower Elliot Lake | Montana | Powell | 10 | Low | Not Available | 1924 | Irrigation |
| Bs Kincheloe #6 | Montana | Rosebud | 10 | Low | - | 1954 | Fire Protection, Stock, Or ... |
| Mud Lake #2 | Montana | Beaverhead | 10 | Low | - | 1945 | Fire Protection, Stock, Or ... |
| Sanders Lake Dam #1 North | Montana | Missoula | 10 | Significant | - | 1913 | Water Supply |
| Hewitt Dam | Montana | Phillips | 10 | Low | Poor | 1938 | Fish and Wildlife Pond |
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.