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 |
|---|---|---|---|---|---|---|---|
| North Roy | Montana | Fergus | 27 | Low | — | 1964 | Fire Protection, Stock, Or ... |
| Mclean (Toole) | Montana | Toole | 27 | Low | — | 1950 | Fire Protection, Stock, Or ... |
| Quick, Floyd #1 | Montana | McCone | 27 | Low | — | 1937 | Irrigation |
| W Krutzfeldt #2 | Montana | Custer | 27 | Low | — | 1968 | Irrigation |
| L Krutzfeldt #1 | Montana | Custer | 27 | Low | — | 1939 | Fire Protection, Stock, Or ... |
| Sun Coulee | Montana | Rosebud | 27 | Low | — | 1956 | Fire Protection, Stock, Or ... |
| H M Scott #1 | Montana | Custer | 27 | Low | — | 1950 | Irrigation |
| Oh Henry'S Place | Montana | Toole | 27 | Low | — | 1948 | Fire Protection, Stock, Or ... |
| Shipley'S (Custer) | Montana | Custer | 27 | Low | — | 1965 | Irrigation |
| Halverson | Montana | Valley | 27 | Significant | — | 1954 | Irrigation |
| Wheat Crop | Montana | Wheatland | 27 | Low | — | 1938 | Fire Protection, Stock, Or ... |
| Chanlin | Montana | Phillips | 27 | Low | — | 1951 | Irrigation |
| Killen #7 | Montana | Rosebud | 27 | Low | — | 1951 | Fire Protection, Stock, Or ... |
| Gardner #2 (West Dam) | Montana | Carter | 27 | Low | — | 1964 | Irrigation |
| Fortune #5 | Montana | Custer | 27 | Low | — | 1970 | Fire Protection, Stock, Or ... |
| Misplaced Dam | Montana | Garfield | 27 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Bjarne #2 | Montana | Daniels | 27 | Low | — | 1951 | Fire Protection, Stock, Or ... |
| Marsh Dam | Montana | Sheridan | 27 | Low | — | 1967 | Fire Protection, Stock, Or ... |
| Blacks Pond Dam | Montana | Rosebud | 26 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| W Krutzfeldt #3 | Montana | Custer | 26 | Low | — | 1960 | Irrigation |
| Paul Huber | Montana | McCone | 26 | Low | — | 1941 | Fire Protection, Stock, Or ... |
| Jeffers #1 | Montana | Big Horn | 26 | Low | — | 1959 | Fire Protection, Stock, Or ... |
| French #10 | Montana | Custer | 26 | Low | — | 1955 | Fire Protection, Stock, Or ... |
| Mad Dam | Montana | Judith Basin | 26 | Low | — | 1955 | Irrigation |
| Whaley #11 Dam | Montana | Rosebud | 26 | Low | Poor | — | |
| Grande | Montana | Meagher | 26 | Low | — | 1951 | Fire Protection, Stock, Or ... |
| Long Horn #1 Dam | Montana | Valley | 26 | Low | Unsatisfactory | — | |
| Harding 1 | Montana | Custer | 26 | Low | Not Available | 1960 | Fire Protection, Stock, Or ... |
| Sweet Carolyn | Montana | Valley | 26 | Significant | — | 1958 | Fire Protection, Stock, Or ... |
| Slimy Stock | Montana | McCone | 26 | Low | — | 1941 | Fire Protection, Stock, Or ... |
| Springdale #4 | Montana | Meagher | 26 | Low | — | 1938 | Irrigation |
| Withee #1 | Montana | Garfield | 26 | Low | — | 1970 | Fire Protection, Stock, Or ... |
| Paine | Montana | McCone | 26 | Low | — | 1976 | Fire Protection, Stock, Or ... |
| Ruff Creek Retention Dam | Montana | McCone | 26 | Low | Not Rated | 2003 | Fire Protection, Stock, Or ... |
| Whatshername | Montana | Valley | 26 | Low | — | 1943 | Fire Protection, Stock, Or ... |
| French #11 | Montana | Custer | 26 | Low | — | 1960 | Fire Protection, Stock, Or ... |
| Mathew James #1 | Montana | Powder River | 26 | Low | — | 1949 | Irrigation |
| Bonhomme Dam | Montana | Park | 26 | Low | — | 1954 | Irrigation |
| Harstad #1 | Montana | Rosebud | 26 | Low | — | 1968 | Fire Protection, Stock, Or ... |
| Kelly Dam | Montana | Beaverhead | 26 | High | Not Rated | 1965 | Irrigation |
| Fish Lake | Montana | Ravalli | 26 | Low | Not Rated | 1927 | Fire Protection, Stock, Or ... |
| Big Timber #10 | Montana | Rosebud | 26 | Low | — | 1975 | Fire Protection, Stock, Or ... |
| Harvey Lake | Montana | Teton | 26 | Significant | — | 1941 | Irrigation |
| Crow #46 | Montana | Big Horn | 26 | Low | — | 1959 | Fire Protection, Stock, Or ... |
| Blevins | Montana | Blaine | 26 | Significant | — | 1952 | Irrigation |
| Lambing Shed | Montana | Rosebud | 26 | Low | — | 1971 | Fire Protection, Stock, Or ... |
| Dodson Diversion Dam | Montana | Phillips | 26 | Low | Not Available | 1910 | Irrigation |
| Bs Kincheloe #1 | Montana | Rosebud | 26 | Low | — | 1970 | Fire Protection, Stock, Or ... |
| Stevens Coulee #1 | Montana | Garfield | 26 | Low | — | 1957 | Fire Protection, Stock, Or ... |
| Young #1 | Montana | Custer | 26 | Low | — | 1952 | Irrigation |
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.