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 |
|---|---|---|---|---|---|---|---|
| Drum No 2 | Montana | Carbon | 22 | Low | - | 1950 | Irrigation |
| Alexander | Montana | Garfield | 22 | Low | - | 1938 | Fire Protection, Stock, Or ... |
| California Coulee | Montana | Hill | 22 | Low | - | 1955 | Flood Risk Reduction |
| Schlesinger #7 | Montana | Rosebud | 22 | Low | - | 1952 | Irrigation |
| Porta Reservoir No. 2 | Montana | Roosevelt | 22 | Significant | - | 1963 | Recreation |
| French #15 | Montana | Rosebud | 22 | Low | - | 1960 | Fire Protection, Stock, Or ... |
| Bowman Lake 1 | Montana | Powell | 22 | Low | Not Available | 1958 | Irrigation |
| Taylor Fish (Fergus) | Montana | Fergus | 22 | Low | - | 1951 | Recreation |
| Khomeni | Montana | Phillips | 22 | Low | - | 1960 | Fire Protection, Stock, Or ... |
| Ryan-Tronrud Dam | Montana | Sweet Grass | 22 | Significant | - | 1956 | Irrigation |
| Creedman Coulee Dam | Montana | Hill | 22 | Low | Fair | 1938 | Fish and Wildlife Pond |
| Big Bucks #11 | Montana | Garfield | 22 | Low | - | 1960 | Fire Protection, Stock, Or ... |
| Tarawa Retention Dam | Montana | Phillips | 22 | Low | Poor | 1947 | Fire Protection, Stock, Or ... |
| Moccasin Detention Dam | Montana | Valley | 22 | Low | Unsatisfactory | 1957 | Fire Protection, Stock, Or ... |
| Just Barely | Montana | Pondera | 22 | Low | - | 1964 | Recreation |
| Pond No. 11 | Montana | Rosebud | 22 | Low | - | 1980 | Other |
| Danelson Reservoir | Montana | Daniels | 22 | Low | - | 1968 | Recreation |
| Big Sky County Wastewater Pond3 | Montana | Gallatin | 22 | High | Not Rated | 1997 | Other |
| Mclean and Sons INCorporated #1 | Montana | Pondera | 22 | Low | - | 1948 | Fire Protection, Stock, Or ... |
| Apache Dam | Montana | Carter | 22 | Low | Satisfactory | - | Flood Risk Reduction |
| Peace Pond | Montana | Ravalli | 22 | High | Satisfactory | 1960 | Irrigation |
| Judy Detention Dam | Montana | Valley | 22 | Low | Satisfactory | 1960 | Fire Protection, Stock, Or ... |
| Upper Glasston West Dam | Montana | Sweet Grass | 22 | High | Poor | 1912 | Irrigation |
| Jones #4 | Montana | Custer | 22 | Low | - | 1945 | Fire Protection, Stock, Or ... |
| Weson | Montana | Valley | 22 | Low | - | 1951 | Irrigation |
| Gregg #1 | Montana | Garfield | 22 | Low | - | 1960 | Fire Protection, Stock, Or ... |
| Lake Frances North Dam | Montana | Pondera | 22 | High | Satisfactory | 1909 | Irrigation |
| Us #25 | Montana | Garfield | 22 | Low | - | 1960 | Fire Protection, Stock, Or ... |
| Big Bucks #8 | Montana | Garfield | 22 | Low | - | 1955 | Fire Protection, Stock, Or ... |
| Antelope Creek Reservoir | Montana | McCone | 22 | Low | - | 1944 | Fire Protection, Stock, Or ... |
| Lion Lake Dam | Montana | Flathead | 22 | High | Not Rated | 1948 | Recreation |
| L and L | Montana | Custer | 22 | Low | - | 1939 | Fire Protection, Stock, Or ... |
| Saylor Reservoir | Montana | Garfield | 22 | Low | - | 1965 | Fire Protection, Stock, Or ... |
| T-Diamond #1 | Montana | Custer | 22 | Low | - | 1961 | Fire Protection, Stock, Or ... |
| Hofer 1 | Montana | Liberty | 22 | Low | - | 1977 | Irrigation |
| Christensen #6 | Montana | Custer | 22 | Low | - | 1961 | Fire Protection, Stock, Or ... |
| Hofer 2 | Montana | Toole | 22 | Low | - | 1977 | Irrigation |
| Gumbo #3 | Montana | Custer | 22 | Low | - | 1959 | Fire Protection, Stock, Or ... |
| Crisafulli Lake | Montana | Dawson | 22 | High | Satisfactory | 1959 | Irrigation |
| Carlton Lake #1 | Montana | Missoula | 22 | High | - | 1899 | Irrigation |
| Colver | Montana | Fergus | 22 | Low | - | 1939 | Irrigation |
| South Meadow Creek Dam | Montana | Madison | 22 | High | Not Available | 1968 | Irrigation |
| Brunton | Montana | Fergus | 22 | Low | - | 1963 | Fire Protection, Stock, Or ... |
| Wyrick | Montana | Fallon | 22 | Low | - | 1984 | Irrigation |
| Standish #5 | Montana | Rosebud | 22 | Low | - | 1959 | Fire Protection, Stock, Or ... |
| Big Bucks #5 | Montana | Garfield | 22 | Low | - | 1955 | Fire Protection, Stock, Or ... |
| Bethel #11 | Montana | Petroleum | 22 | Low | - | 1957 | Fire Protection, Stock, Or ... |
| Iverson Retention Dam | Montana | Petroleum | 22 | Low | Poor | 1968 | Flood Risk Reduction |
| Jones #1 | Montana | Custer | 22 | Low | - | 1949 | Fire Protection, Stock, Or ... |
| Sams #1 | Montana | Powder River | 22 | Low | - | 1944 | 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.