Browse Dams

17,049 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 17,049 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
Whippoorwill Dam Indiana Morgan 40 High Poor 1945 Recreation
Ruckers Lake Dam Virginia Greene 40 High Poor - Recreation
Reusens Virginia Lynchburg 40 High Satisfactory 1903 Hydroelectric
Lake Forrest Dam Georgia Fulton 40 High Poor - Recreation
Lake & Forest Club Dam Indiana Jackson 40 High Fair 1960 Recreation
Wapato Lake Dam Washington Chelan 40 High Fair 1912 Recreation
Griffin Pennsylvania Lackawanna 40 High Poor 1888 Water Supply
Bridge Creek Dam Ohio Geauga 40 High Poor 1961 Water Supply
Guanella Colorado Clear Creek 40 High Satisfactory 2004 Water Supply
Merriman Pennsylvania Butler 40 High Fair 1966 Recreation
Raven Run No 3 Pennsylvania Schuylkill 40 High Fair 1885 Water Supply
Lake Ashburton Reservoir and Storage Tanks Maryland Baltimore City 40 High Not Rated 1910 Water Supply
Blue Eye Creek W/S Dam Site 2 Alabama Talladega 40 High Not Rated 1968 Flood Risk Reduction
Yale Saddle Dam Washington Cowlitz 40 High Unsatisfactory 1953 Hydroelectric
Cle Elum Main Dike Washington Kittitas 40 High Not Available 1933
Windmill Plantation Lake Dam Georgia Columbia 40 High Poor 1985 Recreation
Caballo Arroyo Dam No. 5 New Mexico Doña Ana 40 High Poor 1960 Flood Risk Reduction
Little Sni-A-Bar #22 Missouri Lafayette 40 High Satisfactory 1975 Other
Lake Cherokee Dam South Carolina Cherokee 40 High Fair 1971 Recreation
Lake Ivell Dam Mississippi Jones 40 High Fair 2015 Recreation
Cuyamaca California San Diego 40 High Satisfactory 1887 Other
Montour Ash Basin No 1 Pennsylvania Montour 40 High Satisfactory 1971 Other
Prairie State Energy Raw Water Dam Illinois Washington 40 High Not Available 2010 Water Supply
Copper Avenue Dam Texas El Paso 40 High Not Rated 1948 Flood Risk Reduction
Indian Run Pennsylvania Berks 40 High Unsatisfactory 1890 Water Supply
Amick Upground Reservoir Ohio Morrow 40 High Poor 1968 Water Supply
New Milford Reservoir #4 Dam Connecticut Litchfield 40 High Poor 1900 Recreation
Bergen East Colorado Jefferson 40 High Satisfactory 1874 Irrigation
SCS-Sugar Creek Site-020 Oklahoma Caddo 40 High Not Rated 1962 Flood Risk Reduction
Hinckley Lake Dam Ohio Medina 40 High Poor 1928 Recreation
SCS-Sugar Creek Site-029 Oklahoma Caddo 40 High Fair 1963 Flood Risk Reduction
Upper Bosque River WS SCS Site 3 Dam Texas Erath 40 High Not Rated 1969 Flood Risk Reduction
SCS-Washington Creek Site-1 Oklahoma Garvin 40 High Fair 1981 Other
SCS-Barnitz Creek Site-011 Oklahoma Dewey 40 High Fair 1953 Flood Risk Reduction
Number 4 Arizona Pima 40 High Not Available - Tailings
Lower Pond / Pond 1 California Sacramento 40 High Not Available - Water Supply
York Creek WS SCS Site 10 Dam Texas Guadalupe 40 High Fair 1963 Flood Risk Reduction
Cartecay River WS Str # 10 Georgia Gilmer 40 High Not Rated 1960 Flood Risk Reduction
Alexander Wisconsin Lincoln 40 High Fair 1913 Hydroelectric
Dike D - Keowee South Carolina Oconee 40 High Satisfactory 1969 Hydroelectric
Roden Lake Dam Texas Kerr 40 High Fair 1974 Recreation
Loud Michigan Iosco 40 High Fair 1913 Hydroelectric
SCS-Barnitz Creek Site-013 Oklahoma Dewey 40 High Fair 1954 Flood Risk Reduction
Beaver Creek Wisconsin Jackson 40 High Fair 1970 Recreation
Wildlake Dam Texas Bexar 40 High Satisfactory - Flood Risk Reduction
Fern Lake California Sonoma 40 High Satisfactory 1921 Water Supply
Green Haven Correctional Facility Dam New York Dutchess 40 High Poor 1939 Fire Protection, Stock, Or ...
Mountain Lake Dam South Carolina Greenville 40 High Fair 1889 Recreation
Hidden Valley Camp Dam Kentucky Bullitt 40 High Fair 1986 Recreation
Country Club Pond Dam South Carolina Cherokee 40 High Fair 1955 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.