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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.

Name State County Height (ft) Hazard Condition Year Purpose
Great Pond Dam Connecticut Fairfield 20 High Fair — Other
Packers Pond Dam Connecticut Windham 20 High Satisfactory 1880 Recreation
South Norwalk Reservoir Dike Connecticut Fairfield 20 High Satisfactory 1899 Water Supply
Deuses Pond Dam Connecticut Middlesex 20 Significant Satisfactory 1916 Hydroelectric
Stiles Pond Dam Connecticut New London 20 Significant Not Rated 1870 Recreation
Park Pond Dam Connecticut Litchfield 20 High Satisfactory — Recreation
Blast & Cast Pond Dam Connecticut Hartford 20 Significant Satisfactory 1953 Recreation
Zeiner Pond Connecticut Litchfield 20 Significant Satisfactory 1911 Recreation
Upper Pond Dam Connecticut Litchfield 20 Significant Fair 1880 Recreation
Tower Hill Lake Dam Connecticut Middlesex 20 Low Not Rated 1920 Recreation
Cold Spring Flood Control Site #9 Dam Connecticut Hartford 20 High Satisfactory — Flood Risk Reduction
Shelton Reservoir #3 Dam Connecticut Fairfield 20 Significant Fair 1915 Water Supply
Litchfield Reservoir Dam Connecticut Litchfield 20 Significant Satisfactory — Water Supply
Miller Pond Dam Connecticut New London 20 Significant Satisfactory 1873 Recreation
Farringtons Pond Dam Connecticut Fairfield 20 Significant Satisfactory 1900 Recreation
Twin Lakes Dam Connecticut Litchfield 20 Significant Not Rated 1900 Recreation
Morey Pond Dam Connecticut Windham 19 Significant Satisfactory 1870 Recreation
Sterling Pond Dam Connecticut Windham 19 High Satisfactory 1870 Recreation
Glenville Pond Dam Connecticut Tolland 19 Significant Fair 1842 Recreation
Brunswick Connecticut Windham 19 Low Fair 1891 Hydroelectric
Billings Avery Dam Connecticut New London 19 Significant Satisfactory 1968 Water Supply
Island Brook Lagoon Dam Connecticut Fairfield 19 High Fair — Recreation
Mill Pond Dam Connecticut Hartford 19 Significant Satisfactory 1677 Recreation
Norwich State Hospital Pond Dam Connecticut New London 19 Significant Satisfactory — Recreation
Gay Cemetery Pond Dam Connecticut New London 19 Significant Poor 1920 Recreation
Bulls Bridge Canal Spillway Connecticut Litchfield 19 Low Satisfactory 1902 Hydroelectric
Hatchery Pond Dam Connecticut New Haven 19 Significant Fair — Other
Quillinan Reservoir Dam Connecticut New Haven 19 High Fair 1880 Recreation
Talcott Flood Control Dam #2 Connecticut Hartford 19 High Satisfactory 1964 Flood Risk Reduction
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
Rose Hill Ave Pond Dam Connecticut Fairfield 19 Significant Fair — Other
Hoadley Pond Dam Connecticut New Haven 19 Significant Satisfactory 1873 Water Supply
Quaddick Reservoir Dam Connecticut Windham 19 High Satisfactory 1900 Recreation
Lake Naraneka Dam Connecticut Fairfield 18 Significant Satisfactory 1937 Recreation
Ladner Pond Dam Connecticut Litchfield 18 Significant Satisfactory 1965 Recreation
Rubber Pond Dam Connecticut New London 18 Significant Not Rated — Recreation
Eagleville Dam Connecticut Tolland 18 High Fair 1860 Recreation
Addison Pond Dam Connecticut Hartford 18 Significant Not Rated 1820 Recreation
Lee'S Pond Dam Connecticut Fairfield 18 Significant Poor 1903 Recreation
Lower Rocky Glen Dam Connecticut Fairfield 18 Significant Not Rated 1870 Recreation
Moodus Reservoir Dam Connecticut Middlesex 18 Significant Satisfactory 1882 Recreation
Great Hill Road Pond Dam Connecticut New Haven 18 Significant Satisfactory — Recreation
Hale Dam Connecticut Windham 18 Significant Not Rated 1900 Recreation
Towantic Pond Dam Connecticut New Haven 18 Significant Poor 1870 Recreation
Morosani Pond #2 Dam Connecticut Litchfield 18 Low Not Rated 1971 Recreation
Andover Lake Dam Connecticut Tolland 18 Significant Satisfactory 1926 Recreation
Lower Ansonia Reservoir Dam Connecticut New Haven 18 High Satisfactory 1887 Water Supply
Rimmon Dam Connecticut New Haven 18 Significant Not Rated 1900 Recreation
Eureka Lake Dam Connecticut Fairfield 18 High Fair 1878 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.