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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
Cloud Peak Wyoming Johnson 36 High Fair 1958 Irrigation
Barrel Floodwater Detention Wyoming Weston 36 Low Fair 1973 Flood Risk Reduction
Pass Wyoming Johnson 36 Low Poor 1959 Irrigation
Detention 1593 #2 Dam Wyoming Carbon 36 Low Satisfactory 1960 Debris Control
Wagon Prong Dam Wyoming Washakie 36 Low Fair 2003 Water Supply
Little Red No. 2 Wyoming Sheridan 36 Low Poor 1966 Irrigation
Plum Tree Wyoming Campbell 36 Low Fair 1955 Fire Protection, Stock, Or ...
South Wall Wyoming Natrona 36 Low Fair 1912 Irrigation
Monkey Cowboy Wyoming Johnson 36 Low Fair 2007 Other
Basch Wyoming Johnson 36 Low Poor 1960 Irrigation
Tass Wyoming Johnson 36 Low Poor 1965 Irrigation
Dry Poison Irrigation Wyoming Johnson 36 Low Poor 1970 Irrigation
Alkali Creek Wyoming Park 36 Low Poor 1950 Irrigation
Three Forks Dam Wyoming Natrona 36 Low Unsatisfactory 1954 Debris Control
Jordan No. 1 Wyoming Laramie 36 Low Fair 1955 Irrigation
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 ...
Duck Creek No. 1 Wyoming Albany 36 Low Poor 1951 Irrigation
Detention 1592 #1 Dam Wyoming Carbon 36 Low Fair 1955 Debris Control
Lula Wyoming Johnson 36 Low Fair 1963 Fire Protection, Stock, Or ...
Router No. 11 Wyoming Johnson 35 Low Poor 2007 Irrigation
One Mile Wyoming Laramie 35 Significant Poor 1907 Irrigation
Cardwell Wyoming Carbon 35 Low Poor 1907 Irrigation
Hiser Wyoming Natrona 35 Low Poor 2005 Irrigation
Johnson Wyoming Albany 35 Low Poor 1962 Other
East No. 1 Beardsley Wyoming Niobrara 35 Low Poor 1959 Fire Protection, Stock, Or ...
Hal No. 2 Wyoming Platte 35 Low Poor 1968 Flood Risk Reduction
Case Wyoming Johnson 35 Low Poor 1991 Irrigation
Bucklin Wyoming Carbon 35 Low Fair 1991 Irrigation
Ken No. 1 Wyoming Platte 35 Low Fair 1968 Flood Risk Reduction
Hape Wyoming Sheridan 35 Low Poor 1970 Fire Protection, Stock, Or ...
Alkali Dam Wyoming Natrona 35 Low Fair 1967 Debris Control
Meadow Creek Wyoming Natrona 35 Low Poor 1952 Fire Protection, Stock, Or ...
Irene Wyoming Carbon 35 Low Fair 1953 Irrigation
Madonna Wyoming Johnson 35 Low Poor 1973 Fire Protection, Stock, Or ...
Big Pike Dam Wyoming Natrona 35 Low Unsatisfactory 1965 Debris Control
Ketchum Butte Wyoming Carbon 35 Low Poor 2001 Fire Protection, Stock, Or ...
Pk 9-17 Wyoming Johnson 35 Low Fair 2007 Irrigation
Coulter 14-3 Wyoming Johnson 35 Low Fair 2004 Fire Protection, Stock, Or ...
Fossil Dam Wyoming Natrona 35 Low Unsatisfactory 1966 Debris Control
Bell and Scranton No. 1 Wyoming Albany 35 Significant Fair 1966 Irrigation
Allen Wyoming Sheridan 35 Low Poor 1955 Irrigation
Alkali Dam Wyoming Fremont 35 Low Unsatisfactory 1964 Fire Protection, Stock, Or ...
Love Ex 11-14 Wyoming Campbell 35 Low Fair 1952 Irrigation
Porcupine Wyoming Converse 35 Low Poor 1979 Irrigation
Wildcat No. 3 Wyoming Niobrara 35 Low Poor 1959 Irrigation
Jack Dam Wyoming Natrona 35 Low Unsatisfactory 1971 Debris Control
Harris Wyoming Niobrara 35 Low Fair 2000 Fish and Wildlife Pond
Iron Mountain Wyoming Albany 35 Low Fair 1910 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.