Browse Dams

11,354 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 11,354 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
Mcgirt's Millpond Dam South Carolina Lee 10 Significant Fair 1900 Recreation
Jacobs Creek Pennsylvania Dauphin 10 Significant Satisfactory 1999 Flood Risk Reduction
Busbees Pond Dam South Carolina Orangeburg 10 Significant Not Rated 1960 Recreation
Rudy Pond Pennsylvania York 10 Significant Satisfactory 2005 Recreation
Juniata Lake Pennsylvania Clearfield 10 Significant Fair 1934 Recreation
Levine Reservoir Dam New Jersey Passaic 10 Significant Fair - Water Supply
Gale Pond Dam Connecticut Hartford 10 Significant Satisfactory 1930 Recreation
Smith Pond Dam Connecticut Litchfield 10 Significant Poor 1927 Recreation
Doolittle Lake Dam Connecticut Litchfield 10 Significant Satisfactory 1920 Recreation
Seeley Pond Dam Connecticut Fairfield 10 Significant Poor - Recreation
Yaskot & Ahearn Spillway Connecticut New Haven 10 Significant Not Rated 1880 Recreation
Camp Delaware Dam Connecticut Litchfield 10 Significant Poor - Recreation
Gay City Pond Dam Connecticut Tolland 10 Significant Satisfactory - Recreation
Hoover Pond Dam Connecticut Litchfield 10 Significant Satisfactory 1920 Recreation
Hunts Pond Dam Massachusetts Plymouth 10 Significant Unsatisfactory 1920 Flood Risk Reduction
New Bedford Reservoir Dam Massachusetts Bristol 10 Significant Fair 1867 Recreation
Evans Dam New York Sullivan 10 Significant Fair 1900 Recreation
Edison Wwt Lagoon Ohio Morrow 10 Significant Satisfactory 2000 Tailings
Troy Low Head Dam Ohio Miami 10 Significant Satisfactory - Recreation
Schrock Lake Dam Ohio Franklin 10 Significant Fair 1965 Recreation
Rock Ridge Lake Dam New Jersey Morris 10 Significant Poor 1949 Recreation
Bargaintown Mill Pond Dam New Jersey Atlantic 10 Significant Fair 1718 Recreation
Smeallie Dam New York Montgomery 10 Significant Poor 1974 Irrigation
Byron Pond Dam New York Genesee 10 Significant Poor 1925 Other
Willow Stream Dam New York Onondaga 10 Significant Satisfactory 1997 Flood Risk Reduction
Agfa Lake Dam New York Broome 10 Significant Poor - Recreation
Merriewold Lake Dam New York Sullivan 10 Significant Poor 1914 Recreation
Jamestown Reservoir Rhode Island Newport 10 Significant Fair 1940 Water Supply
Williams Pennsylvania Erie 10 Significant Not Rated - Recreation
Brian Head Phase Iii Utah Iron 10 Significant Not Rated 1993 Water Supply
Reynolds Run Virginia Caroline 10 Significant Unsatisfactory - Recreation
Ripon Wisconsin Fond du Lac 10 Significant Satisfactory 1860 Recreation
Mt. Saratoga Zone 2 Storage Pond Utah Utah 10 Significant Not Rated - Irrigation
Swansgate Dam #1 North Carolina Davidson 10 Significant Fair 1983 Debris Control
Slopers Pond Dam Connecticut Hartford 10 Significant Satisfactory - Recreation
Alden Pond Dam Connecticut Fairfield 10 Significant Not Rated - Recreation
North Lake West Dam Alaska Aleutians West Census Area 10 Significant Not Rated 1945 Water Supply
Starr Mill Pond Dam Connecticut Middlesex 10 Significant Fair 1875 Recreation
Blue Lake Dam Connecticut New London 10 Significant Satisfactory 1900 Recreation
Davis Pond Dam Delaware Sussex 10 Significant Fair - Fish and Wildlife Pond
Indian Lake Dam Connecticut New Haven 10 Significant Fair 1900 Recreation
Turkey Hill Reservoir Dam Connecticut Middlesex 10 Significant Satisfactory - Water Supply
Unnamed Dam Florida Clay 10 Significant Fair - Flood Risk Reduction
Sabic Basins Dam Illinois LaSalle 10 Significant Not Available 1960 Other
Lake Boon Dam Massachusetts Middlesex 10 Significant Poor 1847 Recreation
Whitehall Upper Pond Dam Massachusetts Middlesex 10 Significant Poor - Recreation
Clearwater Pond Maine Franklin 10 Significant Poor - Flood Risk Reduction
Haley Pond Maine Franklin 10 Significant Fair 1900 Flood Risk Reduction
Lake Mattawa South Dam Massachusetts Franklin 10 Significant Poor 1893 Recreation
Russell Pond Dam Massachusetts Plymouth 10 Significant Satisfactory - 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.