Browse Dams

1,289 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 1,289 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
Deuses Pond Dam Connecticut Middlesex 20 Significant Satisfactory 1916 Hydroelectric
Big Pond Dam Connecticut Windham 20 High Satisfactory 1870 Recreation
Packers Pond Dam Connecticut Windham 20 High Satisfactory 1880 Recreation
Lower Bolton Lake Dam Connecticut Tolland 20 Significant Satisfactory 1940 Recreation
South Lanesville Dike Connecticut Litchfield 20 High Satisfactory 1929 Hydroelectric
Ragged Hill Pond Dam Connecticut Windham 20 Significant Fair — Recreation
Laurel Brook Reservoir Dam Connecticut Middlesex 20 High Satisfactory 1866 Water Supply
Shelton Reservoir #3 Dam Connecticut Fairfield 20 Significant Fair 1915 Water Supply
Terryville Reservoir #3 Dam Connecticut Litchfield 20 Significant Fair 1920 Water Supply
Great Pond Dam Connecticut Fairfield 20 High Fair — Other
Lake Mead Dam Connecticut Fairfield 20 Significant Not Rated — Fish and Wildlife Pond
Litchfield Reservoir Dam Connecticut Litchfield 20 Significant Satisfactory — Water Supply
Zeiner Pond Connecticut Litchfield 20 Significant Satisfactory 1911 Recreation
Bulls Bridge Mountainside Spillway Connecticut Litchfield 20 Significant Satisfactory 1902 Hydroelectric
Twin Lakes Dam Connecticut Litchfield 20 Significant Not Rated 1900 Recreation
Bell Shop Dam Connecticut Middlesex 20 Significant Satisfactory — Recreation
Brunswick Connecticut Windham 19 Low Fair 1891 Hydroelectric
Hatchery Pond Dam Connecticut New Haven 19 Significant Fair — Other
Talcott Flood Control Dam #2 Connecticut Hartford 19 High Satisfactory 1964 Flood Risk Reduction
Norwich State Hospital Pond Dam Connecticut New London 19 Significant Satisfactory — Recreation
Island Brook Lagoon Dam Connecticut Fairfield 19 High Fair — Recreation
Billings Avery Dam Connecticut New London 19 Significant Satisfactory 1968 Water Supply
Morey Pond Dam Connecticut Windham 19 Significant Satisfactory 1870 Recreation
Mill Pond Dam Connecticut Hartford 19 Significant Satisfactory 1677 Recreation
West Thompson Dam - Reardon Road Dike Connecticut Windham 19 High Not Available 1965 Flood Risk Reduction
Far Mill River Dam Connecticut Fairfield 19 Significant Satisfactory — Recreation
Sterling Pond Dam Connecticut Windham 19 High Satisfactory 1870 Recreation
Glenville Pond Dam Connecticut Tolland 19 Significant Fair 1842 Recreation
Bulls Bridge Canal Spillway Connecticut Litchfield 19 Low Satisfactory 1902 Hydroelectric
Hoadley Pond Dam Connecticut New Haven 19 Significant Satisfactory 1873 Water Supply
Rose Hill Ave Pond Dam Connecticut Fairfield 19 Significant Fair — Other
Quillinan Reservoir Dam Connecticut New Haven 19 High Fair 1880 Recreation
Quaddick Reservoir Dam Connecticut Windham 19 High Satisfactory 1900 Recreation
Gay Cemetery Pond Dam Connecticut New London 19 Significant Poor 1920 Recreation
Morosani Pond #2 Dam Connecticut Litchfield 18 Low Not Rated 1971 Recreation
Towantic Pond Dam Connecticut New Haven 18 Significant Poor 1870 Recreation
Lower Hart Ponds Dam Connecticut Hartford 18 High Satisfactory 1920 Water Supply
Lower Ansonia Reservoir Dam Connecticut New Haven 18 High Satisfactory 1887 Water Supply
Rubber Pond Dam Connecticut New London 18 Significant Not Rated — Recreation
Mill Pond Dam Connecticut Middlesex 18 High Fair 1721 Recreation
Lake Naraneka Dam Connecticut Fairfield 18 Significant Satisfactory 1937 Recreation
Ladner Pond Dam Connecticut Litchfield 18 Significant Satisfactory 1965 Recreation
Rizzo Pond Dam Connecticut Litchfield 18 Low Satisfactory 1964 Recreation
Great Hill Road Pond Dam Connecticut New Haven 18 Significant Satisfactory — Recreation
Mechanicsville Connecticut Windham 18 Low Satisfactory 1900 Hydroelectric
Highland Pond Dam Connecticut Middlesex 18 Significant Satisfactory 1875 Irrigation
Southington Reservoir #1 Dam Connecticut Hartford 18 Significant Satisfactory — Water Supply
Maupus Pond Dam Connecticut New Haven 18 Significant Poor 1920 Recreation
Jepps Pond Dam Connecticut New Haven 18 Significant Satisfactory — Recreation
Addison Pond Dam Connecticut Hartford 18 Significant Not Rated 1820 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.