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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
Atkinson Cc Lagoon Dam New Hampshire Rockingham 14 Significant Satisfactory 2001 Other
Rodgers Pond Dam New Hampshire Cheshire 14 Low Fair 1922 Recreation
Chandler Pond Dam New Hampshire Grafton 14 Significant Fair 1939 Recreation
Dead River Dike New Hampshire Coos 14 Low Fair 1970 Flood Risk Reduction
Sunapee Lake Dam New Hampshire Sullivan 14 Significant Not Rated 1872 Recreation
Monadnock Paper Indust Lag Dam New Hampshire Hillsborough 14 Significant Satisfactory 1973 Other
Upper City Dam New Hampshire Strafford 14 Significant Fair 1920 Recreation
Damon Upper Reservoir Dam New Hampshire Cheshire 14 High Satisfactory 1835 Recreation
Taylor River Pond Dam New Hampshire Rockingham 14 Undetermined Not Rated 1935 Recreation
Horn Pond Dam New Hampshire Carroll 14 High Poor 1930 Recreation
Upper Recreation Pond Dam New Hampshire Belknap 14 Low Fair 1970 Recreation
Bowker Pond Dam New Hampshire Cheshire 14 Significant Fair 1859 Recreation
Weeks Crossing Pond Dam New Hampshire Grafton 14 Significant Satisfactory — Recreation
May Pond Dam New Hampshire Sullivan 14 Significant Fair 1830 Recreation
South Mill Pond Dam New Hampshire Rockingham 14 Low Satisfactory 1983 Recreation
Pearley Terrill Dam New Hampshire Coos 14 Low Not Rated 1965 Recreation
Beech River Mill Dam New Hampshire Carroll 14 High Poor 1851 Hydroelectric
Harantis Lake Dam New Hampshire Rockingham 14 Significant Poor 1930 Recreation
Mountain Pond North Dam New Hampshire Belknap 14 Low Fair 1913 Water Supply
First Conn Lake South Bay Dike New Hampshire Coos 14 Low Fair — Recreation
Marston Finn Conservation Dam New Hampshire Rockingham 14 Low Not Rated 1778 Recreation
Webster Lake Dam New Hampshire Merrimack 14 High Satisfactory 1873 Recreation
Fountain Pond Center Dam New Hampshire Merrimack 14 Low Not Rated 1800 Recreation
Washburn Corners Dam New Hampshire Sullivan 14 Low Satisfactory 1950 Recreation
Beaver Pond New Hampshire Grafton 14 Low Not Rated 1927 Fish and Wildlife Pond
Pine River Pond Dam New Hampshire Carroll 14 Significant Fair — Recreation
Catamount Pond Dam New Hampshire Merrimack 14 Low Fair 1938 Recreation
Hoague - Sprague New Hampshire Merrimack 14 Significant Satisfactory 1906 Hydroelectric
Baker River Site 6 Dam New Hampshire Grafton 14 Significant Satisfactory 1969 Flood Risk Reduction
Hargate Dam New Hampshire Merrimack 14 Low Satisfactory 1835 Recreation
Noone Mills New Hampshire Hillsborough 14 Significant Satisfactory 1938 Hydroelectric
Steels Pond New Hampshire Hillsborough 14 Significant Satisfactory 1909 Hydroelectric
Nottingham Lake Dam New Hampshire Rockingham 14 Low Satisfactory — Recreation
Canaan Street Lake Dam New Hampshire Grafton 14 Low Not Rated 1917 Recreation
Souhegan River Site 13 Dam New Hampshire Hillsborough 14 Low Satisfactory 1964 Flood Risk Reduction
Canaan Sewage Lagoon Dam New Hampshire Grafton 13 Significant Satisfactory 1991 Other
Bethlehem Sewage Lagoon Dam New Hampshire Grafton 13 Significant Satisfactory 1985 Other
Warren Lake Dam New Hampshire Cheshire 13 High Poor 1771 Recreation
Freeses Pond Dam New Hampshire Rockingham 13 Low Fair 1930 Recreation
Cascade Wastewater Lagoon Dam New Hampshire Coos 13 Significant Satisfactory 1975 Other
Huckins Mill Dam New Hampshire Merrimack 13 Undetermined Not Rated 1830 Recreation
Wadleigh Falls Dam New Hampshire Strafford 13 Undetermined Poor 1906 Recreation
Sanborn Sawmill Dam New Hampshire Merrimack 13 High Satisfactory 1830 Other
Lower Damon Reservoir Dam New Hampshire Cheshire 13 High Poor 1832 Recreation
Dudley Pond Dam New Hampshire Hillsborough 13 Low Poor — Recreation
Antrim Sewage Lagoons Dam New Hampshire Hillsborough 13 Significant Satisfactory 1978 Other
Dodge Pond Dam New Hampshire Grafton 13 Low Satisfactory 1936 Recreation
Thorndike Pond Dam New Hampshire Cheshire 13 Low Satisfactory 1915 Recreation
Mill Pond Dam New Hampshire Rockingham 13 Low Satisfactory 1935 Recreation
East Inlet Dam New Hampshire Coos 13 Low Satisfactory 1900 Recreation

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.