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 |
|---|---|---|---|---|---|---|---|
| Foss Farms INCorperated #3 | Montana | Richland | 15 | Low | - | 1953 | Fire Protection, Stock, Or ... |
| R Downs #7 | Montana | Big Horn | 15 | Low | - | 1961 | Fire Protection, Stock, Or ... |
| Mogen #1 | Montana | Rosebud | 15 | Low | - | 1970 | Fire Protection, Stock, Or ... |
| Van #2 | Montana | Garfield | 15 | Significant | - | 1940 | Fire Protection, Stock, Or ... |
| Ding-A-Ling | Montana | Dawson | 15 | Low | - | 1955 | Fire Protection, Stock, Or ... |
| Spring Creek | Montana | Missoula | 15 | Significant | - | 1951 | Irrigation |
| Dover D Dam #1 | Montana | Yellowstone | 15 | Low | - | 1977 | Fire Protection, Stock, Or ... |
| Ghost #6 | Montana | Valley | 15 | Low | - | 1966 | Other |
| Romain | Montana | Liberty | 15 | Significant | - | 1936 | Fire Protection, Stock, Or ... |
| Chicago Lake | Montana | Liberty | 15 | Low | - | 1968 | Fire Protection, Stock, Or ... |
| Upper Magpie Reservoir | Montana | Dawson | 15 | Low | - | 1960 | Fire Protection, Stock, Or ... |
| Oster | Montana | Blaine | 15 | Low | - | 1950 | Irrigation |
| Mussigbrod Lake Dam | Montana | Beaverhead | 15 | Significant | - | 1969 | Irrigation |
| Malkuch | Montana | Dawson | 15 | Significant | - | 1953 | Irrigation |
| Myron #2 | Montana | Dawson | 15 | Low | - | 1948 | Irrigation |
| Night Fever School | Montana | Liberty | 15 | Low | - | 1960 | Fire Protection, Stock, Or ... |
| Randi | Montana | Phillips | 15 | Low | - | 1955 | Fire Protection, Stock, Or ... |
| Cherry Creek #10 | Montana | Rosebud | 15 | Low | - | 1948 | Fire Protection, Stock, Or ... |
| Burke | Montana | Richland | 15 | Significant | - | 1948 | Fire Protection, Stock, Or ... |
| Higgins Brothers #1 | Montana | Meagher | 15 | Significant | - | 1936 | Irrigation |
| Roth #2 | Montana | Phillips | 15 | Significant | - | 1947 | Irrigation |
| Ottun #5 | Montana | Big Horn | 15 | Low | - | 1963 | Fire Protection, Stock, Or ... |
| Chicken of The Sea | Montana | Phillips | 15 | Low | - | - | Fire Protection, Stock, Or ... |
| Spear #1 | Montana | Powder River | 15 | Low | - | 1954 | Fire Protection, Stock, Or ... |
| Crow #69 | Montana | Big Horn | 15 | Low | - | 1955 | Fire Protection, Stock, Or ... |
| Horse Trough | Montana | McCone | 15 | Low | - | 1960 | Fire Protection, Stock, Or ... |
| Triple L and Er Fritz | Montana | Liberty | 15 | Low | - | 1950 | Fire Protection, Stock, Or ... |
| Ottun #9 | Montana | Big Horn | 15 | Low | - | 1950 | Fire Protection, Stock, Or ... |
| Cloakus | Montana | Toole | 15 | Low | - | 1947 | Fire Protection, Stock, Or ... |
| Decock #3 | Montana | Treasure | 15 | Low | - | 1949 | Fire Protection, Stock, Or ... |
| Johnson (Toole) | Montana | Toole | 15 | Low | - | 1953 | Irrigation |
| Marine Dam | Montana | Lake | 15 | Low | - | 1970 | Fire Protection, Stock, Or ... |
| Magnum East | Montana | Hill | 15 | Low | - | 1950 | Irrigation |
| Costly Coulee Reservoir | Montana | Teton | 15 | Low | - | 1950 | Fire Protection, Stock, Or ... |
| Kool-Aid | Montana | Carter | 15 | Low | - | 1940 | Fire Protection, Stock, Or ... |
| Grabtak #2 | Montana | Blaine | 15 | Low | - | 1955 | Fire Protection, Stock, Or ... |
| Hot Bar #1 | Montana | Dawson | 15 | Low | - | 1955 | Irrigation |
| Keirle #3 | Montana | Fallon | 15 | Low | - | 1959 | Fire Protection, Stock, Or ... |
| Rattlesnake #2 | Montana | Wibaux | 15 | Low | - | 1965 | Fire Protection, Stock, Or ... |
| Moos #1 | Montana | McCone | 15 | Low | - | 1943 | Irrigation |
| Raymond (Phillips) | Montana | Phillips | 15 | Low | - | 1940 | Fire Protection, Stock, Or ... |
| Elias #1 | Montana | Blaine | 15 | Low | - | 1965 | Fire Protection, Stock, Or ... |
| Magnum South | Montana | Hill | 15 | Low | - | 1950 | Irrigation |
| White Silver | Montana | Silver Bow | 15 | Low | - | 1950 | Irrigation |
| Glasscock Bros #1 | Montana | Garfield | 15 | Low | - | 1935 | Fire Protection, Stock, Or ... |
| Matovich #1 | Montana | Garfield | 15 | Low | - | 1947 | Fire Protection, Stock, Or ... |
| Tusler Creek Oyargers & Pardies | Montana | McCone | 15 | Low | - | 1936 | Irrigation |
| Harold #1 | Montana | Garfield | 15 | Low | - | 1965 | Fire Protection, Stock, Or ... |
| Battle Horse Reservoir | Montana | Blaine | 15 | Low | - | 1920 | Fire Protection, Stock, Or ... |
| Froze-To-Death #7 | Montana | Treasure | 15 | Low | - | 1956 | 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.