Browse Dams

7,892 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 7,892 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
Lake Shamokin Dam South Carolina Kershaw 10 Low Poor 1865 Recreation
Buddin Pond Dam South Carolina Clarendon 10 Low Poor 1960 Recreation
Martins Pond Vermont Caledonia 10 Low Poor 1958 Recreation
Silver Lake North Dike Vermont Franklin 10 Low Poor 1895 Water Supply
Mudd Pond Vermont Rutland 10 Low Poor 1900 Recreation
Smith Pond Dam Connecticut Litchfield 10 Significant Poor 1927 Recreation
Seeley Pond Dam Connecticut Fairfield 10 Significant Poor - Recreation
Camp Delaware Dam Connecticut Litchfield 10 Significant Poor - Recreation
Creighton Pond Dam Massachusetts Essex 10 Low Poor - Recreation
Estlick F Wetland Minnesota Otter Tail 10 Low Poor 1970 Recreation
Coon Brook Bog Dam New Hampshire Coos 10 Low Poor 1947 Recreation
Coffin Pond Dam New Hampshire Grafton 10 Low Poor 1960 Recreation
Rock Ridge Lake Dam New Jersey Morris 10 Significant Poor 1949 Recreation
Smeallie Dam New York Montgomery 10 Significant Poor 1974 Irrigation
Byron Pond Dam New York Genesee 10 Significant Poor 1925 Other
Agfa Lake Dam New York Broome 10 Significant Poor - Recreation
Merriewold Lake Dam New York Sullivan 10 Significant Poor 1914 Recreation
Martin Dam South Carolina Horry 10 Low Poor 1950 Recreation
Spring Lake Pennsylvania Susquehanna 10 High Poor 1919 Recreation
Henderson Drain Detention Wyoming Laramie 10 Low Poor 1987 Flood Risk Reduction
Lake Boon Dam Massachusetts Middlesex 10 Significant Poor 1847 Recreation
Watson Pond Dam Massachusetts Berkshire 10 Low Poor - Recreation
Longville Lake Louisiana Beauregard 10 High Poor 1950 Recreation
Whitehall Upper Pond Dam Massachusetts Middlesex 10 Significant Poor - Recreation
Clearwater Pond Maine Franklin 10 Significant Poor - Flood Risk Reduction
Lake Mattawa South Dam Massachusetts Franklin 10 Significant Poor 1893 Recreation
Welch Dam Michigan Berrien 10 Low Poor -
Medicine Lake Dam No. 12 Montana Sheridan 10 Low Poor 1935 Fish and Wildlife Pond
Westchester Lake Dam New York Westchester 10 High Poor 1920 Recreation
Turcos Dam New York Sullivan 10 Significant Poor 1931 Recreation
Staatsburg Water CO Dam New York Dutchess 10 Significant Poor 1908 Recreation
Richmondville Water Supply Dam #1 New York Schoharie 10 Significant Poor 1916 Water Supply
Waterville Reservoir Dam #2 New York Oneida 10 Significant Poor 1917 Water Supply
Taylor Pond Dam 1 South Carolina Calhoun 10 Low Poor 1950 Recreation
Wood River Junction Rhode Island Washington 10 Significant Poor 1860 Recreation
Kennington Pond Dam South Carolina Lancaster 10 Low Poor 1958 Recreation
Ironstone Reservoir Dam Massachusetts Worcester 10 Significant Poor 1928 Recreation
Diamond Pond Dam Massachusetts Norfolk 10 Significant Poor - Recreation
Little Pine Lake Minnesota Aitkin 10 Low Poor 1937 Recreation
Little Hill Pond Minnesota Aitkin 10 Low Poor 1978 Fish and Wildlife Pond
Sawyer Lake Dam New Hampshire Belknap 10 High Poor 1800 Recreation
Nassau Lake Dam New York Rensselaer 10 Significant Poor 1792 Recreation
Moose Pac Lake Dam New Jersey Morris 10 Significant Poor 1918 Recreation
Crystal Lake Dam Ohio Stark 10 Significant Poor 1955 Recreation
Kasoag Lake Dam New York Oswego 10 Low Poor 1820 Recreation
James K Jarrett Dam South Carolina Aiken 10 Low Poor 1960 Recreation
Nightingale Pond Dam South Carolina Georgetown 10 Low Poor 1900 Recreation
Hill Pond Dam South Carolina Sumter 10 Low Poor 1955 Recreation
Johnsonville Club Dam South Carolina Florence 10 Low Poor 1960 Recreation
Upper Snow Dam Washington Chelan 10 Low Poor 1939 Water Supply

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.