Browse Dams

7,712 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 7,712 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
Ilion Reservoir #1 Dam New York Herkimer 40 High Poor 1895 Water Supply
Mock Bass Wyoming Sheridan 40 Low Poor 1966 Fire Protection, Stock, Or ...
Openwood Plantation Lake Number 1 Dam Mississippi Warren 40 Undetermined Poor — Recreation
Hinckley Lake Dam Ohio Medina 40 High Poor 1928 Recreation
James Lake Wyoming Albany 40 Low Poor 1908 Irrigation
2nd Enl. Guild & Dean Wyoming Uinta 40 Low Poor 2001 Irrigation
South Fork Dam New Mexico Doña Ana 40 Low Poor 1930 Flood Risk Reduction
Apodaca Arroyo Dam New Mexico Doña Ana 40 Significant Poor 1962 Flood Risk Reduction
Lock 33 Dam Erie Canal New York Monroe 40 High Poor 1908 Hydroelectric
Ewen Wyoming Big Horn 40 Low Poor 1946 Irrigation
Sycamore Ridge Dam Indiana Floyd 40 High Poor 1964 Recreation
Las Tablas Creek California San Luis Obispo 40 Low Poor 1961 Other
Frd No 32 Kansas Lincoln 40 Significant Poor 1978 Flood Risk Reduction
Lake Gary Dam Mississippi Greene 40 Undetermined Poor — Recreation
Martin County Lake Dam Kentucky Martin 40 Significant Poor 1964 Recreation
Tk Jessup Lake Dam Kentucky Muhlenberg 40 Low Poor 1976 Recreation
Schnacke Lake Number 3 Dam Indiana Vanderburgh 40 Significant Poor — Recreation
Crosby Wyoming Big Horn 40 Significant Poor 1980 Irrigation
Snafu Wyoming Park 40 Low Poor 1967 Other
West Wyoming Converse 40 Low Poor 1950 Water Supply
Whippoorwill Dam Indiana Morgan 40 High Poor 1945 Recreation
Lake Forrest Dam Georgia Fulton 40 High Poor — Recreation
Rank Dam South Dakota Buffalo 40 High Poor 1935 Recreation
Broken Jaw Stock Wyoming Campbell 40 Low Poor 1955 Fire Protection, Stock, Or ...
Lock 32 Dam Erie Canal New York Monroe 40 High Poor 1908 Navigation
Long Pond Dam New York Westchester 40 Significant Poor 1936 Recreation
Bull Run Dam Nevada Elko 40 Low Poor 1955 Irrigation
Schnacke Lake Number 2 Dam Indiana Vanderburgh 40 Significant Poor — Recreation
Pete Pond Dam 2 South Carolina Greenville 40 Low Poor 1953 Recreation
Lake Rupert Dam Ohio Vinton 40 High Poor 1968 Water Supply
Kingston Reservoir #2 Dam New York Ulster 40 Significant Poor 1910 Recreation
Marion County Roadgrade Dam 17-76-18 Iowa Marion 40 Significant Poor 1965 Other
Fourche Creek Wid Site 19 Arkansas Randolph 40 Significant Poor 1982 Recreation
Krebs Oklahoma Pittsburg 40 Significant Poor 1932 Water Supply
Windmill Plantation Lake Dam Georgia Columbia 40 High Poor 1985 Recreation
Marion County Sportsmans Dam Kentucky Marion 40 High Poor 1953 Recreation
Frd No T-4 Kansas Brown 40 High Poor 1964 Flood Risk Reduction
Lake Kannapolis Dam North Carolina Rowan 40 High Poor 1940 Water Supply
Scott Reservoir Dam Massachusetts Worcester 40 High Poor 1875 Water Supply
Caballo Arroyo Dam No. 5 New Mexico Doña Ana 40 Significant Poor 1960 Flood Risk Reduction
Jurgens Dam Nebraska Pawnee 40 Low Poor 1949 Other
Ramah Dam New Mexico McKinley 40 High Poor 1900 Irrigation
Ranken Pond Dam South Carolina Anderson 40 High Poor 1949 Recreation
A-1 Arizona Apache 40 High Poor 1966 Recreation
Bridge Creek Dam Ohio Geauga 40 High Poor 1961 Water Supply
Indian Creek Pennsylvania Fayette 40 High Poor 1905 Water Supply
Ruckers Lake Dam Virginia Greene 40 High Poor — Recreation
Bonneville Wyoming Fremont 40 Low Poor 1914 Other
Griffin Pennsylvania Lackawanna 40 High Poor 1888 Water Supply
Upper Golden Hills Dam South Carolina Lexington 40 High Poor — Recreation

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.