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 |
|---|---|---|---|---|---|---|---|
| Nine Gallons of Milk | Montana | Hill | 25 | Low | — | 1958 | Recreation |
| Berthelote | Montana | Toole | 25 | Low | — | 1955 | Irrigation |
| Robbie | Montana | Sweet Grass | 25 | Significant | — | 1977 | Irrigation |
| Spring-Miller | Montana | Garfield | 25 | Low | — | 1958 | Fire Protection, Stock, Or ... |
| Coulter #2 | Montana | Garfield | 25 | Low | — | 1956 | Irrigation |
| Swart #9 | Montana | Rosebud | 25 | Low | — | 1956 | Fire Protection, Stock, Or ... |
| Mistress Leader | Montana | Hill | 25 | Low | — | 1956 | Fire Protection, Stock, Or ... |
| Michigan | Montana | Hill | 25 | Low | — | 1964 | Fire Protection, Stock, Or ... |
| Big Deal | Montana | Valley | 25 | Low | — | 1952 | Fire Protection, Stock, Or ... |
| Martin #1 (Phillips) | Montana | Phillips | 25 | Low | — | 1953 | Fire Protection, Stock, Or ... |
| Wb Goffena #1 | Montana | Musselshell | 25 | Low | — | 1955 | Fire Protection, Stock, Or ... |
| Sharkey #1 | Montana | Petroleum | 25 | Low | — | 1965 | Fire Protection, Stock, Or ... |
| Gerdts | Montana | Golden Valley | 25 | Low | — | 1940 | Fire Protection, Stock, Or ... |
| Weingart Land & Livestock #1 | Montana | Petroleum | 25 | Low | — | 1959 | Fire Protection, Stock, Or ... |
| Mclean Dam (Hill) | Montana | Hill | 25 | Low | — | 1899 | Irrigation |
| Mckeever, Frank #2 | Montana | Garfield | 25 | Significant | — | 1956 | Fire Protection, Stock, Or ... |
| Triple L Reservoir | Montana | Chouteau | 25 | Low | — | 1950 | Fire Protection, Stock, Or ... |
| Squiggles #1 | Montana | Chouteau | 25 | Low | — | 1965 | Fire Protection, Stock, Or ... |
| Bar V Ranch | Montana | Big Horn | 25 | Low | Not Rated | 1960 | |
| Buck | Montana | Dawson | 25 | Low | — | 1955 | Fire Protection, Stock, Or ... |
| Moulton Reservoir #2 | Montana | Silver Bow | 25 | Low | — | 1950 | Fire Protection, Stock, Or ... |
| Dietz Storage #8 | Montana | Big Horn | 25 | Low | — | 2007 | Other |
| Fish Lake (Pondera) | Montana | Pondera | 25 | Low | — | 1960 | Irrigation |
| French Fry #2 | Montana | Phillips | 25 | Low | — | 1947 | Fire Protection, Stock, Or ... |
| Berkholder Dam | Montana | Toole | 24 | Low | — | 1904 | Fire Protection, Stock, Or ... |
| Heifer Pen | Montana | McCone | 24 | Low | — | 1950 | Fire Protection, Stock, Or ... |
| Fortune #2 | Montana | Custer | 24 | Low | — | 1961 | Fire Protection, Stock, Or ... |
| Beecher #4 | Montana | Garfield | 24 | Low | — | 1973 | Fire Protection, Stock, Or ... |
| Waters #5 | Montana | McCone | 24 | Low | — | 1907 | Fire Protection, Stock, Or ... |
| Goffena | Montana | Musselshell | 24 | Significant | — | 1986 | Fire Protection, Stock, Or ... |
| Barnard Dam | Montana | Phillips | 24 | Low | Satisfactory | — | |
| Groh Stock | Montana | McCone | 24 | Low | — | 1938 | Fire Protection, Stock, Or ... |
| Blanchard Detention Dam X | Montana | Valley | 24 | Low | Unsatisfactory | 1960 | Fire Protection, Stock, Or ... |
| Stevenson, T. | Montana | Hill | 24 | Low | — | 1966 | Recreation |
| Big Bucks #9 | Montana | Garfield | 24 | Low | — | 1955 | Fire Protection, Stock, Or ... |
| Winifred, North | Montana | Fergus | 24 | Significant | — | 1936 | Irrigation |
| Billing Spring #1 | Montana | Garfield | 24 | Low | — | 1956 | Fire Protection, Stock, Or ... |
| Robertson Reservoir | Montana | Garfield | 24 | Low | — | 1959 | Fire Protection, Stock, Or ... |
| Dirty Wash Reservoir | Montana | Garfield | 24 | Low | — | 1950 | Fire Protection, Stock, Or ... |
| Binions #1 | Montana | Garfield | 24 | Low | — | 1937 | Fire Protection, Stock, Or ... |
| Arther Dengel #1 | Montana | Fergus | 24 | Significant | — | 1948 | Irrigation |
| Failing #3 | Montana | Custer | 24 | Low | — | 1948 | Fire Protection, Stock, Or ... |
| W Krutzfeldt #4 | Montana | Custer | 24 | Low | — | 1950 | Fire Protection, Stock, Or ... |
| Engdahl #7 | Montana | Garfield | 24 | Low | — | 1940 | Fire Protection, Stock, Or ... |
| Fox #3 | Montana | Custer | 24 | Low | — | 1957 | Fire Protection, Stock, Or ... |
| Monarch #3 | Montana | Custer | 24 | Low | — | 1953 | Fire Protection, Stock, Or ... |
| Barclay | Montana | Garfield | 24 | Low | — | 1955 | Irrigation |
| Petranek | Montana | Fergus | 24 | Low | — | 1938 | Fire Protection, Stock, Or ... |
| Fred Burr Lake | Montana | Ravalli | 24 | Low | — | 1914 | Irrigation |
| Capricorn | Montana | Hill | 24 | Low | — | 1965 | 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.