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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
Snowflake Wyoming Johnson 40 Low Fair 2006 Irrigation
Cody Municipal Wyoming Park 40 Significant Fair 1948 Water Supply
Casper Sage Creek Wyoming Natrona 40 Significant Fair 1952 Irrigation
Ford No. 1 Wyoming Campbell 40 Low Fair 1960 Fire Protection, Stock, Or ...
Kennedy No. 1 Wyoming Albany 40 Low Poor 1965 Irrigation
Hillside Pond Wyoming Converse 40 Low Fair 2018 Other
Crosby Wyoming Big Horn 40 Significant Poor 1980 Irrigation
Bull Creek Wyoming Crook 40 Low Fair 1978 Irrigation
Enl. Bell Nob No. 2 Wyoming Campbell 40 Low Fair 2008 Irrigation
Broken Jaw Stock Wyoming Campbell 40 Low Poor 1955 Fire Protection, Stock, Or ...
West Wyoming Converse 40 Low Poor 1950 Water Supply
Bridge Dam Wyoming Natrona 40 Low Poor 1957 Debris Control
Ewen Wyoming Big Horn 40 Low Poor 1946 Irrigation
Wildcat No. 1 Wyoming Niobrara 40 Low Fair 1953 Irrigation
Upper Delta (North Offset Dam & West Offset Dam) Wyoming Sweetwater 40 High Fair 2013 Tailings
Muffie Wyoming Johnson 40 Low Fair 1970 Irrigation
Barber Creek 34-35-4976 Wyoming Campbell 40 Low Fair 2008 Fire Protection, Stock, Or ...
Hannah Wyoming Campbell 40 Low Fair 2007 Irrigation
James Lake Wyoming Albany 40 Low Poor 1908 Irrigation
Railroader Wyoming Sheridan 40 Low Fair 2005 Irrigation
2nd Enl. Guild & Dean Wyoming Uinta 40 Low Poor 2001 Irrigation
Pexton No. 1 Wyoming Converse 40 Low Fair 1963 Irrigation
Padlock No. 1 A Five Mile Wyoming Sheridan 40 High Fair 1961 Irrigation
Waterworks No. 3 Wyoming Fremont 40 Low Poor 1959 Irrigation
Spellman B1-27-5475 Wyoming Campbell 40 Low Fair 2008 Irrigation
Miller #1 - Second Enlargement Wyoming Big Horn 39 Low Fair 1972 Irrigation
Heartbreak Hill Wyoming Campbell 39 Low Fair 2007 Fish and Wildlife Pond
Sandstone Wyoming Johnson 39 Low Fair 1956 Fire Protection, Stock, Or ...
Mole Man Wyoming Johnson 39 Low Fair 2008 Fire Protection, Stock, Or ...
Stockpond Wyoming Campbell 39 Low Fair 2007 Flood Risk Reduction
Iberlin 43-3-4676 Wyoming Campbell 39 Low Fair 2009 Fire Protection, Stock, Or ...
Elsie Wyoming Converse 39 Significant Poor 1975 Irrigation
Pine Cone No. 2 Wyoming Carbon 39 Low Poor 1977 Irrigation
Pond 4 (Dam 2b) Wyoming Sweetwater 39 Significant — 1992 Tailings
Brown No. 1 Wyoming Albany 39 Low Poor 1953 Irrigation
Michelena #3 Wyoming Johnson 39 Low Fair 2006 Irrigation
Horse Shoe Wyoming Sheridan 39 Low Fair 1983 Irrigation
Pond 4 (Dam 2a) Wyoming Sweetwater 39 Significant Fair 1992 Tailings
Railroad Wyoming Campbell 39 Significant Fair — Fire Protection, Stock, Or ...
Enl. Fresno Wyoming Johnson 39 Low Fair 2007 Irrigation
#9-249-12 Frog Creek Wyoming Weston 39 Low Not Rated 1954 Flood Risk Reduction
Enl. West Pearson Stock Wyoming Campbell 39 Low Fair 1958 Irrigation
Enl. Spring Wyoming Sheridan 39 Low Fair 2005 Irrigation
Reed Wyoming Uinta 39 Low Fair 1960 Irrigation
Cat Track Dam Wyoming Park 39 Low Unsatisfactory 2003 Other
Gray Reef Dam Wyoming Natrona 38 Low Not Available 1961 Irrigation
Rawlins Peaking Wyoming Carbon 38 Low Fair 1965 Water Supply
Anita Wyoming Johnson 38 Low Fair 1965 Irrigation
Red Bluff Dam Wyoming Natrona 38 Low Poor 1954 Debris Control
Sawmill Wyoming Sheridan 38 High Fair 1972 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.