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 |
|---|---|---|---|---|---|---|---|
| Hannah | Wyoming | Campbell | 40 | Low | Fair | 2007 | Irrigation |
| Broken Jaw Stock | Wyoming | Campbell | 40 | Low | Poor | 1955 | Fire Protection, Stock, Or ... |
| Snafu | Wyoming | Park | 40 | Low | Poor | 1967 | Other |
| Pexton No. 1 | Wyoming | Converse | 40 | Low | Fair | 1963 | Irrigation |
| Mbpp Storm Runoff Retention | Wyoming | Platte | 40 | Low | Fair | 1976 | Other |
| Ross Recovery Cell 8 | Wyoming | Converse | 40 | Low | Fair | 2019 | Irrigation |
| Unit 3 Fgd Evaporation Pond 1 | Wyoming | Lincoln | 40 | Low | Fair | 1990 | Flood Risk Reduction |
| Hillside Pond | Wyoming | Converse | 40 | Low | Fair | 2018 | Other |
| Wildcat No. 1 | Wyoming | Niobrara | 40 | Low | Fair | 1953 | Irrigation |
| Ewen | Wyoming | Big Horn | 40 | Low | Poor | 1946 | Irrigation |
| Upper Delta (North Offset Dam & West Offset Dam) | Wyoming | Sweetwater | 40 | High | Fair | 2013 | Tailings |
| Bonneville | Wyoming | Fremont | 40 | Low | Poor | 1914 | Other |
| Bull Creek | Wyoming | Crook | 40 | Low | Fair | 1978 | Irrigation |
| Kennedy No. 1 | Wyoming | Albany | 40 | Low | Poor | 1965 | Irrigation |
| Muffie | Wyoming | Johnson | 40 | Low | Fair | 1970 | Irrigation |
| Cody Municipal | Wyoming | Park | 40 | Significant | Fair | 1948 | Water Supply |
| Crosby | Wyoming | Big Horn | 40 | Significant | Poor | 1980 | Irrigation |
| Spellman B1-27-5475 | Wyoming | Campbell | 40 | Low | Fair | 2008 | Irrigation |
| Enl. Bell Nob No. 2 | Wyoming | Campbell | 40 | Low | Fair | 2008 | Irrigation |
| Waterworks No. 3 | Wyoming | Fremont | 40 | Low | Poor | 1959 | Irrigation |
| Casper Sage Creek | Wyoming | Natrona | 40 | Significant | Fair | 1952 | Irrigation |
| Padlock No. 1 A Five Mile | Wyoming | Sheridan | 40 | High | Fair | 1961 | Irrigation |
| Mock Bass | Wyoming | Sheridan | 40 | Low | Poor | 1966 | Fire Protection, Stock, Or ... |
| Snowflake | Wyoming | Johnson | 40 | Low | Fair | 2006 | Irrigation |
| Bridge Dam | Wyoming | Natrona | 40 | Low | Poor | 1957 | Debris Control |
| Sandstone | Wyoming | Johnson | 39 | Low | Fair | 1956 | Fire Protection, Stock, Or ... |
| Railroad | Wyoming | Campbell | 39 | Significant | Fair | - | Fire Protection, Stock, Or ... |
| Cat Track Dam | Wyoming | Park | 39 | Low | Unsatisfactory | 2003 | Other |
| Brown No. 1 | Wyoming | Albany | 39 | Low | Poor | 1953 | Irrigation |
| Pond 4 (Dam 2b) | Wyoming | Sweetwater | 39 | Significant | - | 1992 | Tailings |
| Elsie | Wyoming | Converse | 39 | Significant | Poor | 1975 | Irrigation |
| Reed | Wyoming | Uinta | 39 | Low | Fair | 1960 | Irrigation |
| Miller #1 - Second Enlargement | Wyoming | Big Horn | 39 | Low | Fair | 1972 | Irrigation |
| Enl. West Pearson Stock | Wyoming | Campbell | 39 | Low | Fair | 1958 | Irrigation |
| Pond 4 (Dam 2a) | Wyoming | Sweetwater | 39 | Significant | Fair | 1992 | Tailings |
| Michelena #3 | Wyoming | Johnson | 39 | Low | Fair | 2006 | Irrigation |
| Enl. Fresno | Wyoming | Johnson | 39 | Low | Fair | 2007 | Irrigation |
| Enl. Spring | Wyoming | Sheridan | 39 | Low | Fair | 2005 | Irrigation |
| #9-249-12 Frog Creek | Wyoming | Weston | 39 | Low | Not Rated | 1954 | Flood Risk Reduction |
| Iberlin 43-3-4676 | Wyoming | Campbell | 39 | Low | Fair | 2009 | Fire Protection, Stock, Or ... |
| Pine Cone No. 2 | Wyoming | Carbon | 39 | Low | Poor | 1977 | Irrigation |
| Horse Shoe | Wyoming | Sheridan | 39 | Low | Fair | 1983 | Irrigation |
| Stockpond | Wyoming | Campbell | 39 | Low | Fair | 2007 | Flood Risk Reduction |
| Heartbreak Hill (Deleted) | Wyoming | Campbell | 39 | Low | Fair | 2007 | Fish and Wildlife Pond |
| Mole Man | Wyoming | Johnson | 39 | Low | Fair | 2008 | Fire Protection, Stock, Or ... |
| Yates Coal Gulch 24-16 | Wyoming | Johnson | 38 | Low | Fair | 2008 | Fire Protection, Stock, Or ... |
| Gray Reef Dam | Wyoming | Natrona | 38 | Low | Not Available | 1961 | Irrigation |
| Sawmill | Wyoming | Sheridan | 38 | High | Fair | 1972 | Irrigation |
| Shutter | Wyoming | Campbell | 38 | Low | Fair | 2009 | Irrigation |
| The Wall | Wyoming | Campbell | 38 | Low | Fair | 2009 | 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.