Browse Dams

12,908 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 12,908 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
Beaverton Michigan Gladwin 20 Significant Satisfactory 1919 Hydroelectric
Bell Marsh Dike Maine York 20 High Satisfactory 1988 Water Supply
Boulder Lake Dike Ee Minnesota St. Louis 20 Low Satisfactory 1919 Hydroelectric
Packers Pond Dam Connecticut Windham 20 High Satisfactory 1880 Recreation
Drews Lake Dam Iowa Dallas 20 Significant Satisfactory 2005 Recreation
Beartrack Treatment Lagoon Idaho Lemhi 20 Low Satisfactory 1995 Tailings
North Lansing Dam Michigan Ingham 20 Significant Satisfactory 1936 Recreation
Green Oak Lake Dam Michigan Washtenaw 20 Low Satisfactory 1960 Recreation
Mallard Lake No. 2 Dam Mississippi Hinds 20 Low Satisfactory 1997 Recreation
Lake Susan Dam North Carolina Buncombe 20 High Satisfactory 1925 Recreation
Orange-Alamance Lake Dam North Carolina Orange 20 Low Satisfactory 1968 Other
Faraway Pond Dam New Hampshire Coos 20 Significant Satisfactory 1975 Recreation
Hughes Meuret Lagoon Dam Nebraska Antelope 20 Low Satisfactory 1999 Other
Premium Farms Rodgers (Love Farm) Lagoon Dam Nebraska Antelope 20 Low Satisfactory 1998 Other
Cohoes Reservoir #3 Dam New York Albany 20 High Satisfactory 1885 Water Supply
South Hill Pond Dam New York Tompkins 20 Significant Satisfactory - Flood Risk Reduction
Lakemont Farms No 2 Pennsylvania Allegheny 20 Significant Satisfactory - Recreation
Spooner Electric Wisconsin Washburn 20 Significant Satisfactory 1905 Recreation
Mass. Bayboard - Stanchion Massachusetts Middlesex 20 Low Satisfactory 1848 Hydroelectric
York Haven Headrace Pennsylvania Lancaster 20 Low Satisfactory 1904 Hydroelectric
South Lanesville Dike Connecticut Litchfield 20 High Satisfactory 1929 Hydroelectric
Millinocket Lake Maine Penobscot 20 High Satisfactory 1910 Hydroelectric
Gorham New Hampshire Coos 20 Low Satisfactory 1958 Hydroelectric
Tremont Waste Gates Massachusetts Middlesex 20 Low Satisfactory 1848 Hydroelectric
Louisville No. 1 Colorado Boulder 20 Significant Satisfactory 1888 Water Supply
South Norwalk Reservoir Dike Connecticut Fairfield 20 High Satisfactory 1899 Water Supply
Walkers Lake Dam Georgia Carroll 20 High Satisfactory 1962 Recreation
Mirror Lake Dam Connecticut New Haven 20 Significant Satisfactory 1949 Recreation
Bamboo Ridge Lake Iowa Black Hawk 20 High Satisfactory 2012 Recreation
Dd No 4a Kansas Marion 20 Low Satisfactory 1995 Flood Risk Reduction
Strawberry Fields Maryland Howard 20 Significant Satisfactory 1985 Flood Risk Reduction
Etb Waterway Dams Michigan Marquette 20 Low Satisfactory 1986 Other
Itcaina Detention Dam Montana Valley 20 Low Satisfactory 1957 Fire Protection, Stock, Or ...
Crystal Lake Dam North Carolina Durham 20 High Satisfactory 1947 Recreation
Plum Creek 2-2 Nebraska Gage 20 Low Satisfactory 1968 Other
Possum Creek Reserve Lake Dam Ohio Montgomery 20 Low Satisfactory 1979 Recreation
Clinton County Tributary No. 4 Dam Ohio Clinton 20 High Satisfactory 1976 Flood Risk Reduction
Upper Greenwood Lake Dam New Jersey Passaic 20 High Satisfactory 1932 Recreation
Blacksville #1 Freshwater Imp Pennsylvania Greene 20 Significant Satisfactory 1974 Recreation
Long Glade Lake Texas Rusk 20 High Satisfactory 1937 Recreation
Howley Creek #6 Dam Tennessee Carroll 20 Low Satisfactory 1985
Amarillo Citadel Dam Texas Potter 20 Significant Satisfactory 1986 Recreation
Upper Beaver Dam Wisconsin Dodge 20 High Satisfactory 1840 Recreation
Mayfair Regional Storm Water Facility No 1 Dam Texas Comal 20 Significant Satisfactory 2024
North Pond Reservoir Dam Connecticut Litchfield 20 High Satisfactory 1840 Water Supply
Lockhart East Canal Embankment South Carolina Union 20 High Satisfactory 1920 Hydroelectric
Pawtucket Dam Massachusetts Middlesex 20 Low Satisfactory 1848 Hydroelectric
Hatfields New Hampshire Strafford 20 Significant Satisfactory 1937 Hydroelectric
Willamette Falls Oregon Clackamas 20 Significant Satisfactory 1923 Hydroelectric
Moomaws Virginia Buena Vista 20 Low Satisfactory 1842 Hydroelectric

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.