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 |
|---|---|---|---|---|---|---|---|
| Fortification | Wyoming | Campbell | 25 | Low | Fair | 1956 | Fire Protection, Stock, Or ... |
| Miller | Wyoming | Platte | 25 | Low | Fair | 1967 | Irrigation |
| Fields | Wyoming | Niobrara | 25 | Low | Poor | 1953 | Irrigation |
| Murphy | Wyoming | Johnson | 25 | Low | Poor | 1970 | Fire Protection, Stock, Or ... |
| Griffith | Wyoming | Sheridan | 25 | Low | Fair | 1952 | Fire Protection, Stock, Or ... |
| Mill Iron Cross | Wyoming | Campbell | 25 | Low | Fair | 1962 | Fire Protection, Stock, Or ... |
| Jiggs | Wyoming | Campbell | 25 | Low | Poor | 1957 | Fire Protection, Stock, Or ... |
| Lowe No. 1 | Wyoming | Sheridan | 25 | Low | Poor | 1954 | Irrigation |
| Hanna | Wyoming | Carbon | 25 | Low | Fair | 1934 | Other |
| Chug Springs | Wyoming | Platte | 25 | Low | Fair | 1967 | Flood Risk Reduction |
| Simmons | Wyoming | Johnson | 25 | Low | Fair | 1962 | Fire Protection, Stock, Or ... |
| Cedar Storage | Wyoming | Weston | 25 | Low | Poor | 1954 | Irrigation |
| Thoman | Wyoming | Lincoln | 25 | Low | Poor | 1945 | Irrigation |
| Amerada Stock | Wyoming | Johnson | 25 | Low | Fair | 1969 | Fire Protection, Stock, Or ... |
| Basin | Wyoming | Converse | 25 | Low | Fair | 1974 | Irrigation |
| Ethyl No. 2 | Wyoming | Johnson | 25 | Low | Fair | 1969 | Irrigation |
| Sedgwick | Wyoming | Weston | 25 | Low | Poor | 1962 | Fire Protection, Stock, Or ... |
| Macumba Stockwater | Wyoming | Crook | 25 | Low | Fair | 1964 | Fire Protection, Stock, Or ... |
| Ollie Stock | Wyoming | Sheridan | 25 | Low | Poor | 1963 | Fire Protection, Stock, Or ... |
| John Stock | Wyoming | Johnson | 25 | Low | Fair | 1970 | Fire Protection, Stock, Or ... |
| Rachou | Wyoming | Fremont | 25 | Low | Poor | 1940 | Irrigation |
| Clark No. 1 | Wyoming | Niobrara | 25 | Low | Poor | 1959 | Irrigation |
| Dry Creek | Wyoming | Johnson | 25 | Low | Poor | 1958 | Irrigation |
| Summit | Wyoming | Carbon | 25 | Low | Poor | 1954 | Irrigation |
| Perkins | Wyoming | Big Horn | 25 | Low | Poor | 1964 | Irrigation |
| Marsh and Company No. 7 | Wyoming | Carbon | 25 | Low | Poor | 1917 | Irrigation |
| Spencer No. 2 | Wyoming | Weston | 25 | Low | Fair | 1961 | Fire Protection, Stock, Or ... |
| Wilson No. 1 | Wyoming | Converse | 25 | Low | Fair | 1977 | Irrigation |
| Spring Draw | Wyoming | Weston | 25 | Low | Poor | 1959 | Fire Protection, Stock, Or ... |
| Floyd | Wyoming | Campbell | 25 | Low | Fair | 1950 | Irrigation |
| Magoon No. 1 | Wyoming | Niobrara | 25 | Low | Fair | 1959 | Irrigation |
| Smith No. 2 | Wyoming | Johnson | 25 | Low | Fair | 1959 | Irrigation |
| Clear Creek | Wyoming | Laramie | 25 | Low | Poor | 1910 | Irrigation |
| Bell & Scranton No. 2 | Wyoming | Albany | 25 | Low | Poor | 1947 | Irrigation |
| Howell | Wyoming | Weston | 25 | Low | Poor | 1946 | Irrigation |
| Restoration Pond B | Wyoming | Johnson | 25 | Low | Fair | 1980 | Other |
| Big Delaney | Wyoming | Weston | 25 | Low | Poor | 1970 | Irrigation |
| Eisele-Rice | Wyoming | Sheridan | 25 | Low | Fair | 1968 | Fire Protection, Stock, Or ... |
| Fletcher No. 1 | Wyoming | Sheridan | 25 | Low | Fair | 1981 | Irrigation |
| J & J | Wyoming | Natrona | 25 | Low | Poor | 1942 | Irrigation |
| Goble No. 2 | Wyoming | Johnson | 25 | Low | Poor | 1972 | Fire Protection, Stock, Or ... |
| Snider No. 6 | Wyoming | Sheridan | 25 | Low | Poor | 1952 | Irrigation |
| Boulder Lake | Wyoming | Sublette | 25 | Significant | - | 1964 | Irrigation |
| Gates | Wyoming | Campbell | 25 | Low | Poor | 1963 | Fire Protection, Stock, Or ... |
| Larry's Last Chance | Wyoming | Big Horn | 25 | Low | Poor | 1965 | Flood Risk Reduction |
| Pinto | Wyoming | Albany | 25 | Low | Poor | 1961 | Irrigation |
| Black Butte | Wyoming | Sublette | 25 | Low | Poor | 1989 | Fire Protection, Stock, Or ... |
| Gene No. 2 Stock | Wyoming | Converse | 25 | Low | Fair | 1984 | Fire Protection, Stock, Or ... |
| Roberts | Wyoming | Sheridan | 25 | Low | Poor | 1952 | Irrigation |
| Vollman 3572-7 Produced Water #2 | Wyoming | Converse | 25 | Low | Satisfactory | 2024 | Other |
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.