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 |
|---|---|---|---|---|---|---|---|
| Pissolio No. 1 | Wyoming | Weston | 45 | Low | Poor | 1909 | Irrigation |
| Horn | Wyoming | Johnson | 45 | Low | Fair | 1956 | Irrigation |
| Flathead | Wyoming | Washakie | 45 | Significant | Poor | 1979 | Irrigation |
| Moslander | Wyoming | Uinta | 45 | Low | Poor | 1948 | 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 |
| Jenson | Wyoming | Fremont | 44 | Low | Fair | 1979 | Flood Risk Reduction |
| Steffensen | Wyoming | Johnson | 44 | Low | Poor | 1950 | Irrigation |
| Barber Creek 33-12-4876 | Wyoming | Campbell | 44 | Low | Fair | 2007 | Fire Protection, Stock, Or ... |
| Patch | Wyoming | Johnson | 44 | Low | Poor | 1958 | Irrigation |
| Zezas Irrigation | Wyoming | Johnson | 43 | Low | Poor | 1973 | Irrigation |
| Enl. Barber Creek 44-1-4876a | Wyoming | Campbell | 43 | Low | Fair | 2008 | Fire Protection, Stock, Or ... |
| Martin | Wyoming | Johnson | 43 | Significant | Fair | 1910 | Irrigation |
| Feldspar | Wyoming | Johnson | 43 | Low | Fair | 2009 | Irrigation |
| Tabasco | Wyoming | Johnson | 43 | Low | Fair | 2006 | Irrigation |
| Bar M No. 2 | Wyoming | Albany | 43 | Low | - | 1966 | Irrigation |
| Myers | Wyoming | Uinta | 43 | Significant | Poor | 1954 | Irrigation |
| Lake Hattie | Wyoming | Albany | 43 | Significant | Fair | 1912 | Irrigation |
| Dump Draw | Wyoming | Johnson | 42 | High | Satisfactory | 2019 | Flood Risk Reduction |
| Twin Forks | Wyoming | Weston | 42 | Low | Poor | 1959 | Fire Protection, Stock, Or ... |
| Enl. Willow Creek No. 2 | Wyoming | Albany | 42 | Low | Fair | 1981 | Irrigation |
| East Fork Wolf Creek | Wyoming | Natrona | 42 | Significant | Fair | 1974 | Irrigation |
| Geier Irrigation Reservoir | Wyoming | Weston | 42 | Low | Fair | 2008 | Irrigation |
| Dead Rabbit | Wyoming | Johnson | 42 | Low | Fair | 2006 | Irrigation |
| Raw Water Reservoir | Wyoming | Sweetwater | 42 | Significant | Satisfactory | 2022 | Water Supply |
| Router No. 49 | Wyoming | Johnson | 42 | Low | Fair | 2006 | Fire Protection, Stock, Or ... |
| Washakie Dike No. 1 | Wyoming | Fremont | 42 | Undetermined | Satisfactory | 1935 | Irrigation |
| Sheep Mountain | Wyoming | Carbon | 42 | Low | Fair | 1946 | Irrigation |
| Orchard | Wyoming | Washakie | 42 | Low | Fair | 1941 | Irrigation |
| Kiewit Acme Ditch No. 1 | Wyoming | Sheridan | 42 | Low | Fair | 1969 | Irrigation |
| Barber Creek 44-1-4876 | Wyoming | Campbell | 41 | Low | Fair | 2008 | Fire Protection, Stock, Or ... |
| Barber Creek 31-11-4876 | Wyoming | Campbell | 41 | Low | Fair | 2008 | Fire Protection, Stock, Or ... |
| Oak Creek | Wyoming | Crook | 41 | Significant | Fair | 1976 | Irrigation |
| Mcintosh No.2 Enlargement | Wyoming | Fremont | 41 | Low | Fair | - | |
| Six Mile | Wyoming | Natrona | 41 | Low | Poor | 1951 | Irrigation |
| Doby No. 3 | Wyoming | Albany | 41 | Low | Poor | 1984 | Irrigation |
| Wilks Detention | Wyoming | Campbell | 41 | Low | Poor | 1962 | Irrigation |
| Indian Creek No. 1 | Wyoming | Converse | 41 | Low | Fair | 1953 | Irrigation |
| Steffenson No. 2 | Wyoming | Johnson | 41 | Low | Poor | 1971 | Irrigation |
| Mooney 10-5 | Wyoming | Campbell | 41 | Low | Fair | 2005 | Irrigation |
| Wind River Diversion Dam | Wyoming | Fremont | 41 | Low | Not Available | 1923 | Irrigation |
| Cottonwood | Wyoming | Campbell | 41 | Significant | Fair | 1994 | Flood Risk Reduction |
| Ewen | Wyoming | Big Horn | 40 | Low | Poor | 1946 | Irrigation |
| Mock Bass | Wyoming | Sheridan | 40 | Low | Poor | 1966 | Fire Protection, Stock, Or ... |
| West | Wyoming | Converse | 40 | Low | Poor | 1950 | Water Supply |
| Broken Jaw Stock | Wyoming | Campbell | 40 | Low | Poor | 1955 | Fire Protection, Stock, Or ... |
| Hillside Pond | Wyoming | Converse | 40 | Low | Fair | 2018 | Other |
| Wildcat No. 1 | Wyoming | Niobrara | 40 | Low | Fair | 1953 | Irrigation |
| Railroader | Wyoming | Sheridan | 40 | Low | Fair | 2005 | Irrigation |
| Upper Delta (North Offset Dam & West Offset Dam) | Wyoming | Sweetwater | 40 | High | Fair | 2013 | Tailings |
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.