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.

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Name State County Height (ft) Hazard Condition Year Purpose
Dry Poison Irrigation Wyoming Johnson 36 Low Poor 1970 Irrigation
Phil No. 1 Wyoming Niobrara 36 Low Fair 1966 Fire Protection, Stock, Or ...
Monkey Cowboy Wyoming Johnson 36 Low Fair 2007 Other
Basch Wyoming Johnson 36 Low Poor 1960 Irrigation
South Wall Wyoming Natrona 36 Low Fair 1912 Irrigation
Little Red No. 2 Wyoming Sheridan 36 Low Poor 1966 Irrigation
Enl. Iberlin 23-4-4676 Wyoming Campbell 36 Low Fair 2006 Fire Protection, Stock, Or ...
Three Forks Dam Wyoming Natrona 36 Low Unsatisfactory 1954 Debris Control
Duck Creek No. 1 Wyoming Albany 36 Low Poor 1951 Irrigation
Cloud Peak Wyoming Johnson 36 High Fair 1958 Irrigation
Rocky Ford Wyoming Crook 36 Low Poor 1958 Irrigation
Tass Wyoming Johnson 36 Low Poor 1965 Irrigation
Barrel Floodwater Detention Wyoming Weston 36 Low Fair 1973 Flood Risk Reduction
Wagon Prong Dam Wyoming Washakie 36 Low Fair 2003 Water Supply
Alkali Creek Wyoming Park 36 Low Poor 1950 Irrigation
Jordan No. 1 Wyoming Laramie 36 Low Fair 1955 Irrigation
New Haven Lake Wyoming Crook 36 Low Fair 2013 Fish and Wildlife Pond
Auzqui No. 1 Wyoming Sheridan 36 Low Fair 1953 Fire Protection, Stock, Or ...
Enl. Perry Wyoming Sheridan 36 Low Fair 2007 Fire Protection, Stock, Or ...
Lula Wyoming Johnson 36 Low Fair 1963 Fire Protection, Stock, Or ...
Enl. Johnson 34-4-4377 Wyoming Johnson 35 Low Fair 2006 Irrigation
Enl. Dixon Wyoming Johnson 35 Low Fair 1956 Fish and Wildlife Pond
Wildcat No. 2 Wyoming Niobrara 35 Low Fair 1955 Irrigation
Toothaker Wyoming Carbon 35 Low Poor 1967 Irrigation
Sibley Wyoming Sheridan 35 High Not Rated 1938 Recreation
Router No. 11 Wyoming Johnson 35 Low Poor 2007 Irrigation
Pk 9-17 Wyoming Johnson 35 Low Fair 2007 Irrigation
Case Wyoming Johnson 35 Low Poor 1991 Irrigation
Bucklin Wyoming Carbon 35 Low Fair 1991 Irrigation
Hal No. 2 Wyoming Platte 35 Low Poor 1968 Flood Risk Reduction
Walters Wyoming Johnson 35 Low Fair 1952 Fire Protection, Stock, Or ...
Coulter 14-3 Wyoming Johnson 35 Low Fair 2004 Fire Protection, Stock, Or ...
Ketchum Butte Wyoming Carbon 35 Low Poor 2001 Fire Protection, Stock, Or ...
Tank Farm Wyoming Laramie 35 Significant Fair 1983 Flood Risk Reduction
Madonna Wyoming Johnson 35 Low Poor 1973 Fire Protection, Stock, Or ...
Harris Wyoming Niobrara 35 Low Fair 2000 Fish and Wildlife Pond
Alkali Dam Wyoming Natrona 35 Low Fair 1967 Debris Control
Cedar Gulch Wyoming Sheridan 35 Low Fair 2005 Irrigation
Bell and Scranton No. 1 Wyoming Albany 35 Significant Fair 1966 Irrigation
Cardwell Wyoming Carbon 35 Low Poor 1907 Irrigation
Alkali Dam Wyoming Fremont 35 Low Unsatisfactory 1964 Fire Protection, Stock, Or ...
Big Pike Dam Wyoming Natrona 35 Low Unsatisfactory 1965 Debris Control
Spring Creek (Enlargement) Wyoming Carbon 35 Significant Poor 1921 Irrigation
Bench Canal Wyoming Big Horn 35 Low Fair 1969 Irrigation
Wildcat No. 3 Wyoming Niobrara 35 Low Poor 1959 Irrigation
East No. 1 Beardsley Wyoming Niobrara 35 Low Poor 1959 Fire Protection, Stock, Or ...
Porcupine Wyoming Converse 35 Low Poor 1979 Irrigation
Jack Dam Wyoming Natrona 35 Low Unsatisfactory 1971 Debris Control
Snyder Wyoming Park 35 Low Satisfactory 2000 Irrigation
Bagley Brothers Wyoming Platte 35 Low — 1941 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.