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Browse Dams

2,549 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 2,549 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
Krogman No. 2 South Dakota Mellette 26 Low — 1962 Fire Protection, Stock, Or ...
Rada Roy No.1 South Dakota Mellette 26 Low — 1968 Fire Protection, Stock, Or ...
Herman Number 17 South Dakota Jones 26 Low — 1958 Fire Protection, Stock, Or ...
Houck Dam South Dakota Walworth 26 Low — 1980 Grade Stabilization
Tornow No. 2 South Dakota Jones 26 Low — 1976 Fire Protection, Stock, Or ...
Dykstra Number 5 South Dakota Jones 26 Low — 1964 Fire Protection, Stock, Or ...
Hix #2 South Dakota Jones 26 Low — 1959 Fire Protection, Stock, Or ...
Wolf Dam South Dakota Lake 26 Low — 2009 Fish and Wildlife Pond
Chris Mehloff South Dakota Corson 26 Low — 1950 Fire Protection, Stock, Or ...
Astleford No.2 South Dakota Mellette 26 Low — 1966 Fire Protection, Stock, Or ...
Chief Dam South Dakota Oglala Lakota 26 Low — 1960 Fire Protection, Stock, Or ...
Olson Ranches INC. #14 South Dakota Jones 26 Low — 1979 Fire Protection, Stock, Or ...
Krogman No.5 South Dakota Mellette 26 Low — 1954 Fire Protection, Stock, Or ...
Bachelor No. 1 South Dakota Mellette 26 Low — 1971 Fire Protection, Stock, Or ...
Sletto #1 South Dakota Jones 26 Low — 1956 Fire Protection, Stock, Or ...
Sandy Number 2 South Dakota Jones 26 Low — 1956 Fire Protection, Stock, Or ...
Petersen No. 1 South Dakota Mellette 26 Low — 1960 Fire Protection, Stock, Or ...
Clausen Dam South Dakota Dewey 26 Low — 2002 Fish and Wildlife Pond
Abernathy Dam South Dakota Buffalo 26 Low — 1951 Fire Protection, Stock, Or ...
Hazel Miller No.1 South Dakota Dewey 26 Low — 1950 Fire Protection, Stock, Or ...
Osborne #1 South Dakota Jones 26 Low — 1961 Fire Protection, Stock, Or ...
J. Chlecq Dam South Dakota Fall River 26 Low — 1955 Fire Protection, Stock, Or ...
Ralph Ritter No.2 South Dakota Campbell 26 Low — 1965 Fire Protection, Stock, Or ...
Rankin Number 1 South Dakota Jones 26 Low — 1963 Fire Protection, Stock, Or ...
M. Matthews South Dakota Ziebach 26 Low — 1941 Fire Protection, Stock, Or ...
Sd Noname 257 South Dakota Haakon 26 Low — 1960 Fire Protection, Stock, Or ...
Carlson South Dakota Faulk 26 Low — 2009 Fish and Wildlife Pond
White River Grazing Assoc. No.1 South Dakota Mellette 26 Low — 1960 Fire Protection, Stock, Or ...
Alfred Hutchinson South Dakota Lyman 26 Low — 1961 Fire Protection, Stock, Or ...
Perault Number 2 South Dakota Jones 26 Low — 1956 Fire Protection, Stock, Or ...
Jean Simon No.1 South Dakota Dewey 26 Low — 1950 Fire Protection, Stock, Or ...
Sd Noname 205 South Dakota Haakon 26 Significant — 1956 Fire Protection, Stock, Or ...
County Line Dam South Dakota Custer 26 Low — 1945 Fire Protection, Stock, Or ...
Iwan O.M. Number 1 South Dakota Mellette 26 Low — 1970 Fire Protection, Stock, Or ...
Rock Cowan No. 1 South Dakota Dewey 26 Low — 1950 Fire Protection, Stock, Or ...
Adrian #2 South Dakota Mellette 26 Low — 1956 Fire Protection, Stock, Or ...
Bork Number 1 South Dakota Jones 26 Low — 1959 Fire Protection, Stock, Or ...
Mollman Dam South Dakota Perkins 26 Low — 2002 Fish and Wildlife Pond
Alvin Horman South Dakota Stanley 26 Low — 1960 Fire Protection, Stock, Or ...
Gale Grazing Assn No. 1 South Dakota Campbell 26 Low — 1956 Fire Protection, Stock, Or ...
Tribe No.7 South Dakota Ziebach 26 Low — 1960 Water Supply
Carr John Jr. No. 1 South Dakota Mellette 26 Low — 1961 Fire Protection, Stock, Or ...
Wasserburger Pond South Dakota Fall River 26 Low — 1945 Fire Protection, Stock, Or ...
Wilson No.2 South Dakota Harding 26 Low — 1960 Fire Protection, Stock, Or ...
Eugene Welder South Dakota Perkins 26 Low — 1959 Fire Protection, Stock, Or ...
Archie Millard #2 South Dakota Lyman 26 Low — 1968 Fire Protection, Stock, Or ...
Sd Noname 174 South Dakota Pennington 26 Low — 1959 Fire Protection, Stock, Or ...
Ahrenstorff Dam South Dakota Buffalo 26 Low — 1952 Fire Protection, Stock, Or ...
Dejong Bros 10 South Dakota Lyman 26 Low — 1962 Fire Protection, Stock, Or ...
Robert Bolander South Dakota Campbell 26 Low — 1953 Fire Protection, Stock, Or ...

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.