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 |
|---|---|---|---|---|---|---|---|
| Havre Reservoir | Montana | Fergus | 16 | Low | - | 1940 | Fire Protection, Stock, Or ... |
| J Janssen #1 | Montana | Powder River | 16 | Low | - | 1940 | Irrigation |
| Adams #2 | Montana | Fergus | 16 | Low | - | 1960 | Fire Protection, Stock, Or ... |
| Long Horn #4 | Montana | Valley | 16 | Low | - | 1952 | Fire Protection, Stock, Or ... |
| V E G Gunderson | Montana | Richland | 16 | Low | - | 1959 | Fire Protection, Stock, Or ... |
| Jjjj Russ | Montana | Richland | 16 | Low | - | 1962 | Fire Protection, Stock, Or ... |
| Klatt | Montana | Madison | 16 | Low | Not Available | 1949 | Irrigation |
| Cherry Creek #6 | Montana | Rosebud | 16 | Low | - | 1940 | Fire Protection, Stock, Or ... |
| Big Timber #5 | Montana | Rosebud | 16 | Low | - | 1953 | Fire Protection, Stock, Or ... |
| Big Timber #13 | Montana | Rosebud | 16 | Low | - | 1940 | Fire Protection, Stock, Or ... |
| Missouri Wolf | Montana | Judith Basin | 16 | Low | - | 1950 | Recreation |
| Schoolhouse #6 | Montana | Phillips | 16 | Low | - | 1945 | Fire Protection, Stock, Or ... |
| Hovland | Montana | Valley | 16 | Low | - | 1959 | Fire Protection, Stock, Or ... |
| Weeding #3 | Montana | Garfield | 16 | Low | - | 1962 | Fire Protection, Stock, Or ... |
| Miller (Blaine) | Montana | Blaine | 16 | Significant | - | 1939 | Irrigation |
| Delaney | Montana | Richland | 16 | Significant | - | 1961 | Irrigation |
| Jordan Dam | Montana | Valley | 16 | Low | Unsatisfactory | - | |
| Big Timber #29 | Montana | Rosebud | 16 | Low | - | 1940 | Fire Protection, Stock, Or ... |
| Big Timber #27 | Montana | Rosebud | 16 | Low | - | 1940 | Fire Protection, Stock, Or ... |
| Nomland Dam | Montana | McCone | 16 | Low | - | 1964 | Fire Protection, Stock, Or ... |
| Big Timber #44 | Montana | Rosebud | 16 | Low | - | 1973 | Fire Protection, Stock, Or ... |
| Little Brazil | Montana | Valley | 16 | Low | - | 1939 | Fire Protection, Stock, Or ... |
| John Ball Reservoir | Montana | McCone | 16 | Significant | - | 1935 | Fire Protection, Stock, Or ... |
| Horte | Montana | Lake | 16 | Low | Not Rated | 1916 | Irrigation |
| Gearhart #15 | Montana | Rosebud | 16 | Low | - | 1951 | Fire Protection, Stock, Or ... |
| Jelly Bean | Montana | Fergus | 16 | Low | - | 1940 | Irrigation |
| Towe Farms INC #1 | Montana | McCone | 16 | Low | - | 1969 | Fire Protection, Stock, Or ... |
| Cottonwood Grazing #4 Dam | Montana | Phillips | 16 | Low | Not Rated | - | |
| Pishkun Dike 6 | Montana | Teton | 16 | High | Not Available | 1931 | Irrigation |
| Willow Creek Flat Dam (Valley) | Montana | Valley | 16 | Low | Unsatisfactory | - | |
| Towe Farms INC #2 | Montana | McCone | 16 | Low | - | 1967 | Fire Protection, Stock, Or ... |
| Golden Gate Dam | Montana | Blaine | 16 | Low | Not Rated | - | Flood Risk Reduction |
| Pishkun Dike 7 | Montana | Teton | 16 | High | Not Available | 1931 | Irrigation |
| Eva Murphy #1 | Montana | Fergus | 16 | Low | - | 1940 | Fire Protection, Stock, Or ... |
| Pishkun Dike 8 | Montana | Teton | 16 | High | Not Available | 1931 | Irrigation |
| Bond Lake Dam | Montana | Beaverhead | 16 | Low | - | 1977 | Irrigation |
| Duck Creek Retention Dam | Montana | Petroleum | 16 | High | Satisfactory | 2003 | Fire Protection, Stock, Or ... |
| Br-55 Retention Dam | Montana | Blaine | 16 | Low | Not Rated | 1937 | Flood Risk Reduction |
| Three Trees Detention Dam | Montana | Valley | 16 | Low | Unsatisfactory | 1954 | Flood Risk Reduction |
| Pr-88 Retention Dam | Montana | Phillips | 16 | Low | Not Rated | 1936 | Fire Protection, Stock, Or ... |
| Pr-71 Retention Dam | Montana | Phillips | 16 | Low | Not Rated | 1936 | Fire Protection, Stock, Or ... |
| Dead Horse Detention Dam | Montana | Valley | 16 | Low | Satisfactory | 1960 | Flood Risk Reduction |
| Flat Retention Dam / Mister Bill Dam | Montana | Phillips | 16 | Low | Unsatisfactory | 1973 | Fire Protection, Stock, Or ... |
| Frey | Montana | Yellowstone | 15 | Low | - | 1930 | Fire Protection, Stock, Or ... |
| Bronze | Montana | Garfield | 15 | Low | - | 1950 | Fire Protection, Stock, Or ... |
| Lake Seventeen Dam | Montana | Blaine | 15 | Low | Not Available | 1930 | |
| Christenson | Montana | Garfield | 15 | Low | - | 1965 | Fire Protection, Stock, Or ... |
| Nelsons | Montana | Valley | 15 | Low | - | 1947 | Fire Protection, Stock, Or ... |
| Elroy | Montana | Richland | 15 | Low | - | 1960 | Fire Protection, Stock, Or ... |
| Perigee | Montana | Hill | 15 | Low | - | 1935 | 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.