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Browse Dams

586 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 586 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
Indian Pond Maine Somerset 175 High Satisfactory 1955 Hydroelectric
Wyman Maine Somerset 155 High Satisfactory 1930 Hydroelectric
Gulf Island Maine Androscoggin 99 High Satisfactory 1926 Hydroelectric
Ripogenus Maine Piscataquis 83 High Satisfactory 1916 Hydroelectric
Violette Brook Maine Aroostook 75 High Fair 1975 Flood Risk Reduction
Skelton Maine York 75 High Satisfactory 1948 Hydroelectric
Aziscohos Maine Oxford 74 High Satisfactory 1911 Hydroelectric
Mount Zircon Maine Oxford 70 High Fair 1914 Water Supply
Bonny Eagle Maine York 67 Low Satisfactory 1911 Hydroelectric
Dolby Maine Penobscot 66 High Satisfactory 1906 Hydroelectric
Trafton Lake Maine Aroostook 66 High Fair 1969 Flood Risk Reduction
Bell Marsh Maine York 62 High Satisfactory 1987 Water Supply
Ellsworth Maine Hancock 62 High Satisfactory 1907 Hydroelectric
Seboomook Lake Maine Somerset 60 High Satisfactory 1936 Hydroelectric
Durepo Brook Maine Aroostook 60 High Satisfactory 1974 Flood Risk Reduction
Graham Lake Flood Control Maine Hancock 58 High Satisfactory 1994 Hydroelectric
Deer Rips Maine Androscoggin 54 Low Satisfactory 1903 Hydroelectric
Libby Brook Maine Aroostook 53 High Unsatisfactory 1965 Flood Risk Reduction
Weston - South Channel Maine Somerset 51 High Satisfactory 1921 Hydroelectric
Brassua Maine Somerset 50 High Fair 1927 Hydroelectric
Dundee Maine Cumberland 50 High Satisfactory 1913 Hydroelectric
Grand Falls Maine — 50 High Unsatisfactory 1915 Hydroelectric
Canada Falls Lake Maine Somerset 50 High Satisfactory 1921 Hydroelectric
Cataract - East Channel Dam Maine York 49 Low Satisfactory 1938 Hydroelectric
Pejepscot Maine Sagadahoc 48 Significant Satisfactory 1896 Hydroelectric
Woodland Maine Washington 46 High Poor 1906 Hydroelectric
Mattaceunk Maine Penobscot 45 High Satisfactory 1939 Hydroelectric
Bryant Pond Maine Aroostook 45 High Unsatisfactory 1964 Flood Risk Reduction
Flagstaff Maine Somerset 45 High Satisfactory 1948 Hydroelectric
Hanson Brook Maine Aroostook 45 High Fair 1966 Flood Risk Reduction
Williams Maine Somerset 45 Low Satisfactory 1939 Hydroelectric
New Dam Maine York 45 High Fair 1910 Hydroelectric
Graham Lake Dam Maine Hancock 43 High Satisfactory 1924 Hydroelectric
Brunswick Maine Cumberland 42 Low Satisfactory 1982 Hydroelectric
Pond Farm Maine Penobscot 40 Low Fair 1920 Recreation
Gordon's Pond Maine Piscataquis 40 Significant Not Rated 1965 Fish and Wildlife Pond
Rumford Falls Upper Dam Maine Oxford 40 High Satisfactory 1918 Hydroelectric
West Enfield Maine Penobscot 39 Low Satisfactory 1988 Hydroelectric
Weston - North Channel Maine Somerset 38 High Satisfactory 1921 Hydroelectric
South Berwick Maine York 38 Low Not Rated 1923 Hydroelectric
Lower Little River Maine Waldo 36 Significant Satisfactory 1943 Recreation
Old Falls Maine York 36 Significant Poor 1890 Hydroelectric
Wilson Stream Maine Piscataquis 36 Low Poor 1920 Hydroelectric
Anson Maine Somerset 36 Low Satisfactory 1923 Hydroelectric
Middle Pond Maine York 35 Significant Satisfactory 1901 Water Supply
Hydro-Kennebec Maine Kennebec 35 Low Satisfactory 1989 Hydroelectric
Alder Brook Maine Aroostook 35 Low Not Rated 1973 Flood Risk Reduction
North Twin Maine Penobscot 35 High Satisfactory 1934 Hydroelectric
Smith Farm Maine Aroostook 35 Significant Fair 1966 Flood Risk Reduction
Scopan Maine Aroostook 35 High Satisfactory 1928 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.