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Browse Dams

665 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 665 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.

Clear
Name State County Height (ft) Hazard Condition Year Purpose
Loch Lyndon Reservoir Dam New Hampshire Merrimack 12 Low Not Rated 1901 Recreation
Smith Pond Dam New Hampshire Grafton 12 High Fair 1830 Recreation
York Pond Dam New Hampshire Coos 12 Low Not Rated 1930 Recreation
Mirror Lake Dam New Hampshire Grafton 12 Low Satisfactory 1836 Recreation
Lovell Lake Dam New Hampshire Carroll 12 High Poor 1910 Recreation
Hawkins Pond Dam New Hampshire Belknap 12 Significant Fair 1873 Recreation
Goldman Dam New Hampshire Hillsborough 12 Low Not Rated 1930 Recreation
Ossipee Lake Dam Headworks Dam New Hampshire Carroll 12 Low Poor 1919 Recreation
Ossipee Lake Dam Berry Bay New Hampshire Carroll 12 Low Fair 1919 Recreation
Pine Rock Farm Pond Dam New Hampshire Strafford 12 Low Fair 1966 Recreation
Freestyle Farm Pond Dam New Hampshire Hillsborough 12 Low Satisfactory 1962 Recreation
Wildlife Pond Dam New Hampshire Sullivan 12 Low Satisfactory 1972 Fish and Wildlife Pond
Scribner Road Dam New Hampshire Rockingham 12 Low Poor 1930 Recreation
Locke Lake Dam New Hampshire Belknap 12 Low Fair 1965 Recreation
Dimond Pond Dam New Hampshire Rockingham 12 Undetermined Not Rated 1880 Recreation
Kendall Pond Dam New Hampshire Rockingham 12 Low Fair 1930 Recreation
Powwow Pond Dam New Hampshire Rockingham 12 Significant Fair 1935 Recreation
Beaver Brook Assoc Wldlife Pond Dam New Hampshire Hillsborough 12 Low Fair 1968 Fish and Wildlife Pond
Kenneth Hill Pond Dam New Hampshire Strafford 12 Significant Poor 1970 Fish and Wildlife Pond
Pingree Sawmill Dam New Hampshire Rockingham 12 Undetermined Not Rated 1812 Recreation
Goose Pond Dam New Hampshire Merrimack 12 Low Not Rated 1920 Recreation
Jones Pond Dike New Hampshire Carroll 12 Significant Poor 1981 Fish and Wildlife Pond
Woodsville New Hampshire Grafton 12 Significant Satisfactory 1827 Hydroelectric
Pierce New Hampshire Hillsborough 12 Low Satisfactory 1921 Hydroelectric
Watson New Hampshire Strafford 12 Low Satisfactory 1900 Hydroelectric
Big Dodge Pond Dam New Hampshire Rockingham 12 Significant Poor 1917 Fire Protection, Stock, Or ...
Long Pond Dam New Hampshire Grafton 12 Significant Not Rated 1933 Fish and Wildlife Pond
Spofford Lake Dam New Hampshire Cheshire 11 Significant Satisfactory 1919 Recreation
Sargent Center Infiltration Lagoon New Hampshire Hillsborough 11 Significant Not Rated — Other
George Pond Dam New Hampshire Grafton 11 High Fair 1911 Recreation
Cascade Brook Dam New Hampshire Merrimack 11 Low Fair 1955 Recreation
Rockwood Pond Dam New Hampshire Cheshire 11 Low Fair 1915 Recreation
Farrar Marsh Dam New Hampshire Hillsborough 11 Significant Fair 1978 Recreation
Little Cub Pond Dam New Hampshire Rockingham 11 Low Poor 1934 Recreation
Mountain Lake Dam New Hampshire Carroll 11 Low Satisfactory — Recreation
Knowles Pond Dam New Hampshire Merrimack 11 Low Satisfactory 1935 Recreation
Airport Marsh Dam New Hampshire Coos 11 Low Poor 1956 Recreation
Granite Lake Dam New Hampshire Cheshire 11 High Satisfactory 1814 Recreation
Whittemore Lake Dam New Hampshire Hillsborough 11 Low Poor 1886 Recreation
Reservoir Pond Dam New Hampshire Grafton 11 Low Poor 1900 Recreation
Gilson Pond Dam New Hampshire Cheshire 11 Low Satisfactory 1875 Recreation
Municipal Primary Sewage Lagoon 1 New Hampshire Sullivan 11 Significant Satisfactory 1968 Other
Big Brook Bog Dam New Hampshire Coos 11 Significant Fair 1946 Recreation
Municipal Finishing Sewage Lagoon 2 New Hampshire Sullivan 11 Significant Satisfactory 1968 Other
Lower Trio Pond Dam New Hampshire Coos 11 Low Not Rated 1936 Recreation
Nashua Canal Dam and Dike New Hampshire Hillsborough 11 Low Satisfactory 1886 Recreation
Cranberry Pond Dam New Hampshire Cheshire 11 Low Poor 1925 Recreation
Old Mill Pond Dam New Hampshire Rockingham 11 Significant Satisfactory 1930 Recreation
Dole Reservoir Dike New Hampshire Sullivan 11 Significant Fair 1913 Water Supply
Hooksett New Hampshire Merrimack 11 Low Satisfactory 1927 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.