Browse Dams

11,351 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 11,351 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
Stony Batter Pond Dam Connecticut Litchfield 12 Significant Not Rated 1945 Recreation
Lydall Pond #1 Dam Connecticut Hartford 12 Significant Not Rated 1898 Recreation
Straits Pond Dam Massachusetts Norfolk 12 Significant Satisfactory 1908 Flood Risk Reduction
Connellee Dam Virginia Richmond 12 Significant Poor — Recreation
Kenny Pond Vermont Windham 12 Significant Poor 1900 Recreation
Davis Pond Dam Connecticut Fairfield 12 Significant Satisfactory — Recreation
Barlows Pond Dam Virginia York 12 Significant Fair — Recreation
Roderick Wyant Pond Dam Connecticut Litchfield 12 Significant Not Rated 1963 Recreation
Marlton Lakes Upper Dam New Jersey Burlington 12 Significant Satisfactory 1940 Recreation
Tamarack Pond Dam New York Orange 12 Significant Poor — Water Supply
Thrushwood Lake Dam Connecticut Fairfield 12 Significant Fair — Recreation
Camp Inawendiwin Middle Dam New Jersey Burlington 12 Significant Satisfactory —
Killingly Pond Dam Connecticut Windham 12 Significant Fair 1900 Other
Coginchaug River Dam #1 Connecticut Middlesex 12 Significant Satisfactory — Recreation
Independence Dam Ohio Defiance 12 Significant Poor 1924 Recreation
Demond Pond Dam Massachusetts Worcester 12 Significant Fair — Recreation
Bryan Lake Dam North Carolina Johnston 12 Significant Poor 1874 Irrigation
Lyon Lodge Dam New York Ulster 12 Significant Poor 1925 Recreation
Little River Pond Dam Connecticut Windham 12 Significant Not Rated — Recreation
Caylor Ranch Dam South Dakota Fall River 12 Significant — 1945 Fire Protection, Stock, Or ...
Duck Pond Dam Texas Val Verde 12 Significant Not Rated —
Schultz Pond Dam Connecticut Hartford 12 Significant Not Rated — Recreation
Jackson Pond Dam New Hampshire Belknap 12 Significant Satisfactory 1894 Recreation
Hortons Pond Dam South Carolina Kershaw 12 Significant Fair 1960 Recreation
Saratoga Springs Wildflower Zone 3 Pond Utah Utah 12 Significant Not Rated — Irrigation
Hunnewell Lake Maine Aroostook 12 Significant Poor 1968 Other
Scotch Road Detention Dam 1.2 New Jersey Mercer 12 Significant Satisfactory — Flood Risk Reduction
Timber Lake Dam Texas Liberty 12 Significant Not Rated 1974 Recreation
Spring Lake Dam Florida Putnam 12 Significant Poor — Fire Protection, Stock, Or ...
Papoose Lake Upper Dam Massachusetts Franklin 12 Significant Poor — Recreation
Rinehart Pennsylvania Montgomery 12 Significant Satisfactory 1988 Recreation
Wire Company Dam #2 Connecticut New Haven 12 Significant Not Rated 1900 Recreation
Upper Keswick Dam New Jersey Ocean 12 Significant Satisfactory 1898 Recreation
Stevenson's Lake Dam South Carolina Richland 12 Significant Fair 1960 Recreation
Poe Lake Dam Indiana Allen 12 Significant Not Rated 1967 Recreation
Lake Grinnell Dam New Jersey Sussex 12 Significant Poor 1900 Recreation
Pontiac Motor Division Detention Basin Michigan Oakland 12 Significant Not Rated 1982 Flood Risk Reduction
Country Bend Pennsylvania Bucks 12 Significant Fair 1986 Flood Risk Reduction
Herndons Pond Dam South Carolina Dorchester 12 Significant Fair 1940 Recreation
Loflin Lake Dam Mississippi Rankin 12 Significant Not Rated — Recreation
Bartlett Pond Dam Massachusetts Worcester 12 Significant Satisfactory 1850 Other
Leddell'S Pond Dam New Jersey Morris 12 Significant Satisfactory — Recreation
Martin Lake Dam (Right) New York Orange 12 Significant Not Rated 1929 Recreation
Medway Park Dam Massachusetts Norfolk 12 Significant Satisfactory — Recreation
Long Lake Dam Ohio Summit 12 Significant Satisfactory 1936 Recreation
Hoaglan Farms West Dam New Jersey Somerset 12 Significant Satisfactory 1988 Flood Risk Reduction
Farm River (Northford) Diversion Connecticut New Haven 12 Significant Satisfactory — Water Supply
Black Hawk Lake Dam Iowa Sac 12 Significant Satisfactory 1916 Flood Risk Reduction
Wilsonville Pond Dam Connecticut Windham 12 Significant Fair 1880 Recreation
Trussams Pond Dam Delaware Sussex 12 Significant Fair — 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.