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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
Lake Mark Dam Connecticut Tolland 21 Significant Fair 1957 Recreation
South Pond Dam Connecticut Litchfield 21 High Satisfactory 1850 Recreation
Arrigoni Pond Dam Connecticut Middlesex 21 Significant Satisfactory 1945 Recreation
Kinneytown Connecticut New Haven 21 Significant Poor 1913 Hydroelectric
Goodwin Pond Dam Connecticut Litchfield 21 Significant Poor — Recreation
Butternut Hollow Pond Dam Connecticut Middlesex 21 Significant Satisfactory 1935 Recreation
Cheshire Reservoir Dam Connecticut New Haven 21 High Satisfactory 1908 Water Supply
Broad Brook Mill Pond Dam Connecticut Hartford 21 Significant Not Rated 1880 Recreation
Stanley Quarter Park Pond Dam Connecticut Hartford 21 Significant Satisfactory — Recreation
Bogue Brook Reservoir Dam Connecticut New London 21 Significant Satisfactory 1920 Water Supply
Potash Pond Dam Connecticut Windham 21 Significant Fair 1880 Recreation
Wyre - Wynd Connecticut New London 21 Low Satisfactory 1913 Hydroelectric
Bugbee Flood Control Dam Connecticut Hartford 20 High Satisfactory 1969 Flood Risk Reduction
Ravenswood Dam Connecticut New Haven 20 Significant Satisfactory — Fish and Wildlife Pond
Tower Hill Lake Dam Connecticut Middlesex 20 Low Not Rated 1920 Recreation
Plymouth Reservoir Dam Connecticut Litchfield 20 High Satisfactory 1881 Water Supply
South Lanesville Dike Connecticut Litchfield 20 High Satisfactory 1929 Hydroelectric
Farringtons Pond Dam Connecticut Fairfield 20 Significant Satisfactory 1900 Recreation
Middle Bolton Lake Dam Connecticut Tolland 20 Significant Satisfactory 1940 Recreation
Litchfield Reservoir Dam Connecticut Litchfield 20 Significant Satisfactory — Water Supply
Twin Lakes Dam Connecticut Litchfield 20 Significant Not Rated 1900 Recreation
West Side Flood Control Dam #5 Connecticut Litchfield 20 High Satisfactory 1970 Flood Risk Reduction
Bell Shop Dam Connecticut Middlesex 20 Significant Satisfactory — Recreation
Wilson Brook Detention Dam Connecticut Hartford 20 Significant Satisfactory 1981 Flood Risk Reduction
Rhode Island Pond Dam Connecticut Tolland 20 Significant Satisfactory 1880 Recreation
Fairy Lake Dam Connecticut New London 20 Significant Fair 1956 Water Supply
Ivy Mountain Dam Connecticut Litchfield 20 Low Fair — Recreation
Terryville Reservoir #3 Dam Connecticut Litchfield 20 Significant Fair 1920 Water Supply
South Flood Control Dike Connecticut Hartford 20 High Satisfactory — Flood Risk Reduction
Packers Pond Dam Connecticut Windham 20 High Satisfactory 1880 Recreation
Bantam Hydro Dam Connecticut Litchfield 20 Significant Satisfactory 1945 Hydroelectric
Schwartz Pond Dam Connecticut Litchfield 20 Significant Fair 1964 Recreation
Thurston Pond Dam Connecticut New Haven 20 High Satisfactory 1890 Recreation
Lake Mead Dam Connecticut Fairfield 20 Significant Not Rated — Fish and Wildlife Pond
Fitchville Pond Dam Connecticut New London 20 High Poor 1871 Recreation
Lower Bolton Lake Dam Connecticut Tolland 20 Significant Satisfactory 1940 Recreation
Bulls Bridge Mountainside Spillway Connecticut Litchfield 20 Significant Satisfactory 1902 Hydroelectric
Avery Flood Control Site #1 Dam Connecticut Hartford 20 High Satisfactory 1992 Flood Risk Reduction
Wood Creek Flood Control Dike Site #9 Connecticut Litchfield 20 High Satisfactory 1971 Flood Risk Reduction
Miller Pond Dam Connecticut New London 20 Significant Satisfactory 1873 Recreation
Witches Wood Lake Dam Connecticut Windham 20 Significant Satisfactory 1963 Recreation
Freshwater Pond Dam Connecticut Hartford 20 High Satisfactory 1900 Recreation
Stiles Pond Dam Connecticut New London 20 Significant Not Rated 1870 Recreation
Cold Spring Flood Control Site #9 Dam Connecticut Hartford 20 High Satisfactory — Flood Risk Reduction
Big Pond Dam Connecticut Windham 20 High Satisfactory 1870 Recreation
Blast & Cast Pond Dam Connecticut Hartford 20 Significant Satisfactory 1953 Recreation
Park Pond Dam Connecticut Litchfield 20 High Satisfactory — Recreation
Wheeler Pond Dam Connecticut New London 20 Significant Fair 1810 Other
Zeiner Pond Connecticut Litchfield 20 Significant Satisfactory 1911 Recreation
Upper Pond Dam Connecticut Litchfield 20 Significant Fair 1880 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.