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Browse Dams

1,340 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 1,340 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
Eclipse Dam Massachusetts Berkshire 52 High Fair 1890 Flood Risk Reduction
Lower Van Horn Reservoir Dam Massachusetts Hampden 52 High Satisfactory 1848 Recreation
Windsor Reservoir Dam Massachusetts Berkshire 51 High Satisfactory 1865 Water Supply
White Reservoir Dam Massachusetts Hampshire 51 Significant Fair 1912
Bickford Pond Dam Massachusetts Worcester 51 High Fair 1971 Water Supply
Red Bridge Massachusetts Hampden 51 High Fair 1901 Hydroelectric
Mill Pond Dam Massachusetts Middlesex 50 High Satisfactory 1973 Water Supply
Perley Brook Reservoir Dam Massachusetts Worcester 50 High Satisfactory 1962 Water Supply
Highland Commons Pond B Dam & Dike Massachusetts Worcester 50 Significant Satisfactory 2010 Flood Risk Reduction
Bear Swamp - East Dike Massachusetts Franklin 50 High Satisfactory 1974 Hydroelectric
Birch Hill Dam Massachusetts Worcester 49 High Not Available 1942 Flood Risk Reduction
Birch Hill Dam - Winchenden Dike Massachusetts Worcester 49 High Not Available 1942 Flood Risk Reduction
Fells Reservoir Dam No. 1 (Extensively Filled D/S Area) Massachusetts Middlesex 48 Low Satisfactory — Water Supply
Powdermill Brook Pl-566 Flood Control Dam Massachusetts Hampden 48 High Fair 1962 Flood Risk Reduction
West Hill Dam - Dike D Massachusetts Worcester 48 High Not Available 1961 Flood Risk Reduction
Fells Reservoir Dam No. 8 Massachusetts Middlesex 48 High Satisfactory 1898 Water Supply
Barre Falls Dam - Dike 3 Massachusetts Worcester 48 High Not Available 1958 Flood Risk Reduction
Deerfield No. 4 Massachusetts Franklin 48 Low Satisfactory 1912 Hydroelectric
Somerset Reservoir Dam Massachusetts Bristol 48 High Fair 1965 Water Supply
West Hill Dam Massachusetts Worcester 48 High Not Available 1961 Flood Risk Reduction
Chicopee Reservoir Dam Massachusetts Hampden 47 High Fair 1927 Recreation
Mare Meadow Reservoir Dam Massachusetts Worcester 47 High Fair 1955 Water Supply
Holden Reservoir Dam No. 1 Massachusetts Worcester 47 High Fair 1883 Water Supply
Littleville Dam - Saddle Dike Massachusetts Hampshire 46 High Not Available 1965 Flood Risk Reduction
Lester G. Ross Dam Massachusetts Worcester 46 High Satisfactory 1974 Flood Risk Reduction
South Reservoir Dam Massachusetts Middlesex 45 High Poor 1882 Water Supply
Wachusett Reservoir South Dike Massachusetts Worcester 45 High Satisfactory 1906 Water Supply
Quinapoxet Reservoir Dam Massachusetts Worcester 45 High Satisfactory 1953 Water Supply
Weston Reservoir Dam Massachusetts Middlesex 45 High Satisfactory — Water Supply
Goose Cove Northwest Dike Massachusetts Essex 44 High Fair 1963 Water Supply
Breeds Pond Outlet Dam No. 5 Massachusetts Essex 44 High Fair 1870 Water Supply
Haskell Pond Dam Massachusetts Essex 43 High Poor 1903 Water Supply
Walden Pond Outlet Dam Massachusetts Essex 43 High Fair 1890 Water Supply
Babson Reservoir Dam Massachusetts Essex 43 High Satisfactory 1930 Water Supply
Norumbega Reservoir Dam No. 1 Massachusetts Middlesex 42 High Fair 1940 Water Supply
Overlook Reservoir Dam Massachusetts Worcester 41 High Poor 1871
Cherry Valley Dam Massachusetts Hampden 41 High Fair 1877 Water Supply
Echo Lake Dam Massachusetts Middlesex 41 High Satisfactory 1881 Water Supply
Westfield Reservoir Dam Massachusetts Hampden 41 High Fair 1874
Hill Reservoir Dam Massachusetts Hampshire 41 Significant Fair 1934 Water Supply
Sandwash Reservoir Dam Massachusetts Berkshire 41 High Poor 1936 Water Supply
Scott Reservoir Dam Massachusetts Worcester 40 High Poor 1875 Water Supply
Mill Pond North Dike Massachusetts Middlesex 40 Significant Satisfactory 1973 Water Supply
Copicut Reservoir Dam Massachusetts Bristol 40 High Fair 1971 Water Supply
Mill River Dam Massachusetts Hampshire 40 Significant Satisfactory 1939 Flood Risk Reduction
Abbey Lake Dam Massachusetts Berkshire 40 High Satisfactory 1967 Flood Risk Reduction
Northfield Mt. - Northwest Dike Massachusetts Franklin 40 High Satisfactory 1973 Hydroelectric
Mount Williams Reservoir Dam & Dike Massachusetts Berkshire 40 High Poor 1914 Water Supply
West Parish Filter No. 3 Dam Massachusetts Hampden 39 High Fair 1910 Water Supply
Deerfield No. 5 - Canal #1 Massachusetts Franklin 39 Low Satisfactory 1910 Hydroelectric

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.