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 |
|---|---|---|---|---|---|---|---|
| Jack Pot | Wyoming | Natrona | 45 | Low | Poor | 1915 | Other |
| Canon No. 5 | Wyoming | Albany | 45 | Low | Fair | 1963 | Irrigation |
| Horn | Wyoming | Johnson | 45 | Low | Fair | 1956 | Irrigation |
| Flathead | Wyoming | Washakie | 45 | Significant | Poor | 1979 | Irrigation |
| Fish Stockwater | Wyoming | Johnson | 44 | Low | Fair | 1971 | Fire Protection, Stock, Or ... |
| Kiewit Herbs Creek No. 1 | Wyoming | Sheridan | 44 | Low | Fair | 1967 | Irrigation |
| Barber Creek 33-12-4876 | Wyoming | Campbell | 44 | Low | Fair | 2007 | Fire Protection, Stock, Or ... |
| Steffensen | Wyoming | Johnson | 44 | Low | Poor | 1950 | Irrigation |
| Patch | Wyoming | Johnson | 44 | Low | Poor | 1958 | Irrigation |
| Jenson | Wyoming | Fremont | 44 | Low | Fair | 1979 | Flood Risk Reduction |
| Martin | Wyoming | Johnson | 43 | Significant | Fair | 1910 | Irrigation |
| Zezas Irrigation | Wyoming | Johnson | 43 | Low | Poor | 1973 | Irrigation |
| Bar M No. 2 | Wyoming | Albany | 43 | Low | — | 1966 | Irrigation |
| Lake Hattie | Wyoming | Albany | 43 | Significant | Fair | 1912 | Irrigation |
| Feldspar | Wyoming | Johnson | 43 | Low | Fair | 2009 | Irrigation |
| Enl. Barber Creek 44-1-4876a | Wyoming | Campbell | 43 | Low | Fair | 2008 | Fire Protection, Stock, Or ... |
| Myers | Wyoming | Uinta | 43 | Significant | Poor | 1954 | Irrigation |
| Tabasco | Wyoming | Johnson | 43 | Low | Fair | 2006 | Irrigation |
| Twin Forks | Wyoming | Weston | 42 | Low | Poor | 1959 | Fire Protection, Stock, Or ... |
| Raw Water Reservoir | Wyoming | Sweetwater | 42 | Significant | Satisfactory | 2022 | Water Supply |
| Router No. 49 | Wyoming | Johnson | 42 | Low | Fair | 2006 | Fire Protection, Stock, Or ... |
| Kiewit Acme Ditch No. 1 | Wyoming | Sheridan | 42 | Low | Fair | 1969 | Irrigation |
| Dead Rabbit | Wyoming | Johnson | 42 | Low | Fair | 2006 | Irrigation |
| Sheep Mountain | Wyoming | Carbon | 42 | Low | Fair | 1946 | Irrigation |
| Geier Irrigation Reservoir | Wyoming | Weston | 42 | Low | Fair | 2008 | Irrigation |
| Enl. Willow Creek No. 2 | Wyoming | Albany | 42 | Low | Fair | 1981 | Irrigation |
| Washakie Dike No. 1 | Wyoming | Fremont | 42 | Undetermined | Satisfactory | 1935 | Irrigation |
| Dump Draw | Wyoming | Johnson | 42 | High | Satisfactory | 2019 | Flood Risk Reduction |
| Orchard | Wyoming | Washakie | 42 | Low | Fair | 1941 | Irrigation |
| East Fork Wolf Creek | Wyoming | Natrona | 42 | Significant | Fair | 1974 | Irrigation |
| Wilks Detention | Wyoming | Campbell | 41 | Low | Poor | 1962 | Irrigation |
| Mcintosh No.2 Enlargement | Wyoming | Fremont | 41 | Low | Fair | — | |
| Wind River Diversion Dam | Wyoming | Fremont | 41 | Low | Not Available | 1923 | Irrigation |
| Steffenson No. 2 | Wyoming | Johnson | 41 | Low | Poor | 1971 | Irrigation |
| Six Mile | Wyoming | Natrona | 41 | Low | Poor | 1951 | Irrigation |
| Doby No. 3 | Wyoming | Albany | 41 | Low | Poor | 1984 | Irrigation |
| Cottonwood | Wyoming | Campbell | 41 | Significant | Fair | 1994 | Flood Risk Reduction |
| Barber Creek 31-11-4876 | Wyoming | Campbell | 41 | Low | Fair | 2008 | Fire Protection, Stock, Or ... |
| Indian Creek No. 1 | Wyoming | Converse | 41 | Low | Fair | 1953 | Irrigation |
| Oak Creek | Wyoming | Crook | 41 | Significant | Fair | 1976 | Irrigation |
| Mooney 10-5 | Wyoming | Campbell | 41 | Low | Fair | 2005 | Irrigation |
| Barber Creek 44-1-4876 | Wyoming | Campbell | 41 | Low | Fair | 2008 | Fire Protection, Stock, Or ... |
| Mock Bass | Wyoming | Sheridan | 40 | Low | Poor | 1966 | Fire Protection, Stock, Or ... |
| Hannah | Wyoming | Campbell | 40 | Low | Fair | 2007 | Irrigation |
| Hillside Pond | Wyoming | Converse | 40 | Low | Fair | 2018 | Other |
| Wildcat No. 1 | Wyoming | Niobrara | 40 | Low | Fair | 1953 | Irrigation |
| Mbpp Storm Runoff Retention | Wyoming | Platte | 40 | Low | Fair | 1976 | Other |
| Casper Sage Creek | Wyoming | Natrona | 40 | Significant | Fair | 1952 | Irrigation |
| West | Wyoming | Converse | 40 | Low | Poor | 1950 | Water Supply |
| Bridge Dam | Wyoming | Natrona | 40 | Low | Poor | 1957 | Debris Control |
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.