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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.

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Name State County Height (ft) Hazard Condition Year Purpose
Penobscot Lake Maine Somerset 14 Low Satisfactory 1916 Hydroelectric
Wassookeag Lake Maine Penobscot 14 High Satisfactory 1914 Flood Risk Reduction
Spragues Mill Maine Penobscot 14 Low Poor 1955 Recreation
Little Ossipee Lake Maine York 14 Low Not Rated 1993 Other
Nadeau Pond Dam Maine Aroostook 14 Low Not Rated 2007 Recreation
Crystal Lake Maine Cumberland 14 Low Not Rated 1890 Recreation
Cobbosseecontee Outlet Maine Kennebec 14 Significant Fair 1900 Other
Spencer Lake Maine Somerset 14 Low Not Rated 1946 Hydroelectric
Megunticook West Maine Knox 14 High Poor 1900 Fire Protection, Stock, Or ...
Moose Pond Storage Maine Oxford 14 Significant Fair 1917 Water Supply
Branns Mill Maine Piscataquis 14 Low Not Rated 1900 Hydroelectric
Mallison Falls Maine Cumberland 14 Significant Satisfactory 1900 Hydroelectric
Little Dickey Maine York 14 Low Not Rated 1970 Hydroelectric
Rock Haven Lake Maine York 14 Low Poor 1790 Recreation
Mars Hill Maine Aroostook 14 Low Not Rated 1900 Hydroelectric
Oakland Maine Kennebec 14 Low Satisfactory 1901 Hydroelectric
Messalonskee Lake Maine Kennebec 14 High Satisfactory 1992 Hydroelectric
Number One Pond Maine York 14 Low Fair 1912 Flood Risk Reduction
Lamb Brook Dam Maine Aroostook 14 Low Not Rated 1970 Other
Middle Barn Meadow Dam Maine Washington 14 Low Fair 1944 Fish and Wildlife Pond
Lubec Water & Elec. Light Co. Maine Washington 14 Low Not Rated 1900 Flood Risk Reduction
Kingsbury Maine Piscataquis 13 Low Fair 1958 Other
Shirley Pond Maine Piscataquis 13 Low Not Rated 1959 Hydroelectric
Hicks Pond Maine Oxford 13 Low Not Rated 1944 Hydroelectric
Foss Mill Maine Waldo 13 Low Satisfactory 1981 Hydroelectric
Dresden Bog Maine Lincoln 13 Low Not Rated 1850 Recreation
Mic-Mac Maine Washington 13 Low Not Rated — Recreation
Panther Pond Maine Cumberland 13 Low Fair 1925 Recreation
Cold Stream Pond Maine Penobscot 13 Low Fair 1890 Fish and Wildlife Pond
Cider Mill Maine York 13 Low Fair 1900 Water Supply
Thompson Lake Maine Oxford 13 Low Not Rated 1800 Hydroelectric
Great Works Pond Maine Washington 13 Low Not Rated 1900 Fish and Wildlife Pond
Patte Mill Dam Maine Oxford 13 Low Not Rated 1880 Fish and Wildlife Pond
Carleton Pond Maine Kennebec 13 Significant Fair 1904 Hydroelectric
Ice Pond Maine Lincoln 13 Low Fair 1920 Recreation
Craig Pond Dam Maine Hancock 13 Low Fair 1891 Recreation
New River Channel Dam Maine Cumberland 13 Low Satisfactory 1911 Hydroelectric
Sam Ayers Deadwater Outlet Dam Maine Penobscot 13 Low Not Rated 2002 Fish and Wildlife Pond
North Twin - Dike 6 Maine Piscataquis 13 High Satisfactory 1934 Hydroelectric
Stanhope Mill #2 Lower Maine Penobscot 13 Low Not Rated 1827 Hydroelectric
West Grand Lake Maine Washington 13 Significant Satisfactory 1836 Hydroelectric
Wilson Pond Maine Piscataquis 12 Significant Poor 1907 Hydroelectric
Guilford Maine Piscataquis 12 Low Not Rated 1963 Other
Nequasett Lake Maine Sagadahoc 12 Low Satisfactory 1920 Other
China Lake Maine Kennebec 12 Low Fair 1910 Hydroelectric
Mill Development Maine Waldo 12 Low Satisfactory 1900
Lowell Lake Maine Penobscot 12 Low Poor 1900 Other
Big Meadow Maine Washington 12 Low Not Rated — Fire Protection, Stock, Or ...
Pitcher Pond Maine Waldo 12 Low Not Rated 1900 Recreation
Marks Lake Maine Washington 12 Low Poor 1820 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.