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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.

Clear
Name State County Height (ft) Hazard Condition Year Purpose
Lander Wastewater Treatment Wyoming Fremont 10 Low Fair 1994 Other
Henderson Drain Detention Wyoming Laramie 10 Low Poor 1987 Flood Risk Reduction
Keystone Wyoming Carbon 10 Low Fair 1921 Irrigation
Cottonwood Lake Wyoming Lincoln 10 Low Not Rated 1925 Recreation
Gillette Wyoming Campbell 10 Low Fair 1908 Water Supply
Hanna Lagoon (Cell 1 & 2) Wyoming Carbon 10 Low Fair 1988 Other
J.O. Mcdonald Wetland Pond #2 Wyoming Crook 10 Low Fair 2002 Fish and Wildlife Pond
Wiant Dam No. 2 Wyoming Carbon 10 Low Poor 1953 Irrigation
Intercity Wastewater Treatment(Cell 3) Wyoming Sweetwater 10 Low Fair 1990 Other
Intercity Wastewater Treatment(Cell 1) Wyoming Sweetwater 10 Low Fair 1990 Other
Intercity Wastewater Treatment(Cell 2) Wyoming Sweetwater 10 Low Fair 1990 Other
Marlatt Wyoming Goshen 9 Low Fair 1956 Irrigation
Stone No. 1 Wyoming Campbell 9 Low — 1908 Irrigation
Bucklin No. 2 Wyoming Carbon 9 Low Fair 1930 Irrigation
Stephenson Wyoming Carbon 9 Low Poor 1909 Irrigation
Upton Wastewater Treatment Wyoming Weston 9 Low Fair 1985 Debris Control
Wagner Wyoming Natrona 9 Low Poor 1909 Irrigation
Wetlands No. 6 Wyoming Big Horn 9 Low Fair 1993 Fish and Wildlife Pond
J-J No. 3 Wyoming Sublette 9 Low Fair 1927 Irrigation
Ocean Lake Habitat No. 5 Wyoming Fremont 9 Low Poor 1973 Fish and Wildlife Pond
Ocean Lake Habitat No. 6 Wyoming Fremont 9 Low Poor 1973 Fish and Wildlife Pond
Coyote Wyoming Uinta 8 Low Poor 1962 Irrigation
Fiddlers Lake Wyoming Fremont 8 Low Not Rated 1936 Recreation
Point of Rocks Wyoming Carbon 8 Low Poor 1908 Irrigation
Wamsutter Wastewater Wyoming Sweetwater 8 Low Fair 1979 Debris Control
Twin Buttes Wyoming Albany 8 Low Fair 1972 Fish and Wildlife Pond
Leidy Lake Wyoming Teton 8 Low Fair 1983 Fish and Wildlife Pond
Grinnell Wyoming Carbon 8 Low Fair 1919 Irrigation
Gillespie Wyoming Albany 8 Low Poor 1914 Irrigation
Brannan No. 2 Wyoming Sweetwater 8 Low Poor 1937 Irrigation
Greybull Sewage Treatment Lagoon Wyoming Big Horn 8 Significant Fair 1960 Other
Rigbys Wyoming Fremont 8 Low Fair 1905 Irrigation
Red Wash #2 Wyoming Carbon 8 Low Fair 1997 Fire Protection, Stock, Or ...
Dome Lake Wyoming Sheridan 8 Low Fair 1906 Irrigation
Weir Pond Wyoming Sheridan 8 Low Poor 1969 Irrigation
Powell Sewage Lagoon System-Primary (1) Wyoming Park 8 Low Fair 1988 Other
Powell Sewage Lagoon System-Primary (2) Wyoming Park 8 Low Fair 1988 Other
Leck Mayes Wyoming Big Horn 8 Low Poor 1992 Fish and Wildlife Pond
Lower Goose Pond Wyoming Fremont 8 Low Not Rated — Irrigation
Sederlin Wyoming Carbon 7 Low Poor 1910 Irrigation
Lone Tree No. 2 Wyoming Albany 7 Low Fair 1909 Irrigation
Allee Wyoming Campbell 7 Low Poor 1978 Fire Protection, Stock, Or ...
Ocean Lake Habitat No. 2 Wyoming Fremont 7 Low Fair 1973 Fish and Wildlife Pond
Ocean Lake Habitat No. 2 Dike A Wyoming Fremont 7 Low Fair 1973 Fish and Wildlife Pond
Trail Lake Control Dam Wyoming Fremont 7 Low Poor 1947 Irrigation
Seepage Lake Wyoming Albany 7 Low Fair 1970 Irrigation
Upper Goose Pond West Dike Wyoming Fremont 7 Significant Not Rated — Irrigation
Upper Goose Pond Middle Dike Wyoming Fremont 5 Significant Not Rated — 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.