Browse Dams
1,498 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 1,498 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 |
|---|---|---|---|---|---|---|---|
| Falxa No. 1 | Wyoming | Johnson | 25 | Low | Poor | 1958 | Fire Protection, Stock, Or ... |
| Fields | Wyoming | Niobrara | 25 | Low | Poor | 1953 | Irrigation |
| Sturgeon No. 2 | Wyoming | Albany | 25 | Low | Poor | 1949 | Irrigation |
| Murphy | Wyoming | Johnson | 25 | Low | Poor | 1970 | Fire Protection, Stock, Or ... |
| Fortification | Wyoming | Campbell | 25 | Low | Fair | 1956 | Fire Protection, Stock, Or ... |
| Chug Springs | Wyoming | Platte | 25 | Low | Fair | 1967 | Flood Risk Reduction |
| Jiggs | Wyoming | Campbell | 25 | Low | Poor | 1957 | Fire Protection, Stock, Or ... |
| Lowe No. 1 | Wyoming | Sheridan | 25 | Low | Poor | 1954 | Irrigation |
| Thoman | Wyoming | Lincoln | 25 | Low | Poor | 1945 | Irrigation |
| Hanna | Wyoming | Carbon | 25 | Low | Fair | 1934 | Other |
| Basin | Wyoming | Converse | 25 | Low | Fair | 1974 | Irrigation |
| Cedar Storage | Wyoming | Weston | 25 | Low | Poor | 1954 | Irrigation |
| Mill Iron Cross | Wyoming | Campbell | 25 | Low | Fair | 1962 | Fire Protection, Stock, Or ... |
| Amerada Stock | Wyoming | Johnson | 25 | Low | Fair | 1969 | Fire Protection, Stock, Or ... |
| Simmons | Wyoming | Johnson | 25 | Low | Fair | 1962 | Fire Protection, Stock, Or ... |
| Sedgwick | Wyoming | Weston | 25 | Low | Poor | 1962 | Fire Protection, Stock, Or ... |
| John Stock | Wyoming | Johnson | 25 | Low | Fair | 1970 | Fire Protection, Stock, Or ... |
| Ollie Stock | Wyoming | Sheridan | 25 | Low | Poor | 1963 | Fire Protection, Stock, Or ... |
| Macumba Stockwater | Wyoming | Crook | 25 | Low | Fair | 1964 | Fire Protection, Stock, Or ... |
| Ethyl No. 2 | Wyoming | Johnson | 25 | Low | Fair | 1969 | Irrigation |
| Rachou | Wyoming | Fremont | 25 | Low | Poor | 1940 | Irrigation |
| Summit | Wyoming | Carbon | 25 | Low | Poor | 1954 | Irrigation |
| Clark No. 1 | Wyoming | Niobrara | 25 | Low | Poor | 1959 | Irrigation |
| Dry Creek | Wyoming | Johnson | 25 | Low | Poor | 1958 | Irrigation |
| Perkins | Wyoming | Big Horn | 25 | Low | Poor | 1964 | Irrigation |
| Smith No. 2 | Wyoming | Johnson | 25 | Low | Fair | 1959 | Irrigation |
| Magoon No. 1 | Wyoming | Niobrara | 25 | Low | Fair | 1959 | Irrigation |
| Marsh and Company No. 7 | Wyoming | Carbon | 25 | Low | Poor | 1917 | Irrigation |
| Wilson No. 1 | Wyoming | Converse | 25 | Low | Fair | 1977 | Irrigation |
| Spencer No. 2 | Wyoming | Weston | 25 | Low | Fair | 1961 | Fire Protection, Stock, Or ... |
| Floyd | Wyoming | Campbell | 25 | Low | Fair | 1950 | Irrigation |
| Spring Draw | Wyoming | Weston | 25 | Low | Poor | 1959 | Fire Protection, Stock, Or ... |
| Howell | Wyoming | Weston | 25 | Low | Poor | 1946 | Irrigation |
| Bell & Scranton No. 2 | Wyoming | Albany | 25 | Low | Poor | 1947 | Irrigation |
| Restoration Pond B | Wyoming | Johnson | 25 | Low | Fair | 1980 | Other |
| Clear Creek | Wyoming | Laramie | 25 | Low | Poor | 1910 | Irrigation |
| Big Delaney | Wyoming | Weston | 25 | Low | Poor | 1970 | Irrigation |
| Eisele-Rice | Wyoming | Sheridan | 25 | Low | Fair | 1968 | Fire Protection, Stock, Or ... |
| Goble No. 2 | Wyoming | Johnson | 25 | Low | Poor | 1972 | Fire Protection, Stock, Or ... |
| Fletcher No. 1 | Wyoming | Sheridan | 25 | Low | Fair | 1981 | Irrigation |
| Snider No. 6 | Wyoming | Sheridan | 25 | Low | Poor | 1952 | Irrigation |
| J & J | Wyoming | Natrona | 25 | Low | Poor | 1942 | Irrigation |
| Larry's Last Chance | Wyoming | Big Horn | 25 | Low | Poor | 1965 | Flood Risk Reduction |
| Gene No. 2 Stock | Wyoming | Converse | 25 | Low | Fair | 1984 | Fire Protection, Stock, Or ... |
| Pinto | Wyoming | Albany | 25 | Low | Poor | 1961 | Irrigation |
| Black Butte | Wyoming | Sublette | 25 | Low | Poor | 1989 | Fire Protection, Stock, Or ... |
| Gates | Wyoming | Campbell | 25 | Low | Poor | 1963 | Fire Protection, Stock, Or ... |
| Boulder Lake | Wyoming | Sublette | 25 | Significant | — | 1964 | Irrigation |
| South Wall No. 3 | Wyoming | Natrona | 25 | Low | Fair | 1951 | Irrigation |
| Eden West Dike | Wyoming | Sweetwater | 25 | Low | Not Available | 1907 | 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.