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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
Nepaug East Dike Connecticut Hartford 57 High Satisfactory 1916 Water Supply
Moody Reservoir Dam Connecticut New Haven 56 High Satisfactory 1900 Water Supply
Means Brook Reservoir Dam Connecticut Fairfield 54 High Satisfactory 1917 Water Supply
Colebrook River Dam - Saddle Dike Connecticut Litchfield 54 High Not Available 1969 Flood Risk Reduction
American Can Company Dam Connecticut Fairfield 53 High Satisfactory 1970 Recreation
Lake Gaillard East Dike Connecticut New Haven 53 High Satisfactory 1929 Water Supply
Whitney Flood Control Site #1 Dam Connecticut Tolland 52 High Satisfactory 1962 Flood Risk Reduction
Hancock Brook Dam - Railroad Dike Connecticut Litchfield 51 High Not Available 1966 Flood Risk Reduction
Crystal Lake Dam Connecticut Middlesex 50 High Poor 1850 Recreation
Laurel Reservoir Dam Connecticut Fairfield 50 High Satisfactory 1923 Water Supply
Wasel Reservoir Dike Connecticut Hartford 50 High Satisfactory 1966 Water Supply
Trap Falls Reservoir Dam Connecticut Fairfield 48 High Fair 1905 Water Supply
Shuttle Meadow Reservoir Dam Connecticut Hartford 48 High Satisfactory 1894 Water Supply
Higganum Reservoir Dam Connecticut Middlesex 48 High Fair 1868 Recreation
East Lake Reservoir Dam Connecticut Fairfield 47 High Satisfactory 1855 Water Supply
Danbury Dike No. 1 Connecticut Fairfield 47 High Satisfactory 1929 Hydroelectric
Beaver Dam Lake Dam Connecticut Fairfield 47 High Satisfactory 1901 Recreation
Killingworth Reservoir Dam Connecticut Middlesex 46 High Satisfactory 1895 Water Supply
Tuller Reservoir Dam Connecticut Hartford 46 Significant Fair 1900 Recreation
Hartford Reservoir #1 Dam Connecticut Hartford 46 High Poor 1868 Water Supply
Morgan Pond Dam Connecticut New London 45 Significant Satisfactory 1966 Water Supply
Hallmere Reservoir Dam Connecticut Hartford 45 High Satisfactory 1897 Water Supply
Maltby #2 Dam Connecticut New Haven 45 Significant Satisfactory 1862 Water Supply
Middle Lanesville Dike Connecticut Litchfield 45 High Satisfactory 1929 Hydroelectric
Lake Whitney Dam Connecticut New Haven 44 High Poor 1861 Water Supply
Pemberwick Dam Connecticut Fairfield 44 High Fair 1867 Recreation
New Canaan Reservoir Dam Connecticut Fairfield 44 High Satisfactory 1898 Water Supply
Howard Reservoir Dam Connecticut Hartford 44 High Satisfactory 1902 Water Supply
Rainbow Reservoir Dam Connecticut Hartford 43 High Satisfactory 1925 Hydroelectric
Norfolk Brook Flood Control Dam #6 Connecticut Litchfield 43 High Satisfactory 1966 Flood Risk Reduction
South Meadows Dike Connecticut Hartford 43 High Not Rated 1939 Flood Risk Reduction
West Lake Reservoir Dam Connecticut Fairfield 42 High Satisfactory 1906 Water Supply
Seymour Reservoir #3 Dam Connecticut New Haven 42 Significant Fair 1910 Water Supply
New Britain Reservoir Dam Connecticut New Haven 42 High Satisfactory 1904 Water Supply
Hartford Reservoir #6 East Dam Connecticut Hartford 42 High Fair 1895 Water Supply
Taftville Hydro Dam #4 Connecticut New London 41 High Satisfactory 1867 Hydroelectric
Great Hill Reservior Dam Connecticut New Haven 41 High Poor 1909 Recreation
Peat Swamp Reservoir Dam Connecticut New Haven 41 High Poor 1925 Water Supply
Hartford Reservoir #3 Dam Connecticut Hartford 41 High Fair 1875 Water Supply
New Milford Reservoir #4 Dam Connecticut Litchfield 40 Significant Poor 1900 Recreation
North Stamford Reservoir Dam Connecticut Fairfield 40 High Fair 1908 Water Supply
Globe Hollow Reservoir Dam Connecticut Hartford 40 Significant Fair 1906 Water Supply
Bristol Reservoir #4 Dam Connecticut Litchfield 40 Significant Satisfactory 1906 Water Supply
Stony Brook Reservoir Dam Connecticut New London 40 Significant Fair 1912 Water Supply
Broad Brook Reservoir Dam Connecticut New Haven 40 High Fair 1913 Water Supply
Bulls Bridge Forebay Dike Connecticut Litchfield 39 Significant Satisfactory 1903 Hydroelectric
Goss Brook Dam Connecticut Windham 39 High Satisfactory 1963 Recreation
Kenmere Reservoir Dam Connecticut Hartford 38 High Satisfactory 1898 Water Supply
Burnt Hill Flood Control Dam Connecticut Hartford 38 High Satisfactory 1966 Flood Risk Reduction
Ellis Flood Control Site #2 Dam Connecticut Tolland 38 High Satisfactory 1960 Flood Risk Reduction

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.