Vehicle Safety
Recalls Search 320,000+ NHTSA safety recalls Complaints 2.1M+ consumer safety complaints TSBs 4.7M technical service bulletins VIN Lookup Decode any vehicle VIN instantly OBD Codes 12,000+ diagnostic trouble codes Fuel Economy EPA MPG data for all vehicles Statistics Recall trends & safety analysis
Consumer Safety
Product Safety 9,700+ CPSC product recalls Food Safety 28,600+ FDA food recalls Pet Safety 1.3M FDA animal adverse events Drug Safety 17,500+ FDA drug recalls Device Safety 38,400+ FDA device recalls Workplace Safety 102,900+ OSHA injury reports
Infrastructure
Bridge Safety 624,000 bridge inspections Aviation Safety 30,000+ NTSB aviation events Dam Safety 92,600 dam safety records Water Safety 433,000+ public water systems Railroad Safety 438,000+ rail crossings Pipeline Safety 8,800+ pipeline incidents
Public Health
Nursing Homes 14,700 CMS rated facilities Environmental 80,000+ hazardous sites & releases

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.

Name State County Height (ft) Hazard Condition Year Purpose
Comerford New Hampshire Grafton 170 High Satisfactory 1930 Hydroelectric
Moore New Hampshire Grafton 149 High Satisfactory 1957 Hydroelectric
Otter Brook Dam New Hampshire Cheshire 119 High Not Available 1958 Flood Risk Reduction
Franklin Falls Dam New Hampshire Merrimack 116 High Not Available 1943 Flood Risk Reduction
Everett Dam New Hampshire Hillsborough 115 High Not Available 1961 Flood Risk Reduction
Murphy Dam New Hampshire Coos 106 High Not Rated 1938 Recreation
Whitewater Brook Dam New Hampshire Sullivan 95 High Fair 1968 Water Supply
Surry Mountain Dam New Hampshire Cheshire 83 High Not Available 1941 Flood Risk Reduction
Ayers Island New Hampshire Grafton 80 Significant Satisfactory 1924 Hydroelectric
Souhegan River Site 26 Dam New Hampshire Hillsborough 79 High Fair 1965 Flood Risk Reduction
Hopkinton Dam - Dike H-2 New Hampshire Merrimack 77 High Not Available 1962 Flood Risk Reduction
Blackwater Dam New Hampshire Merrimack 75 High Not Available 1941 Flood Risk Reduction
Souhegan River Site 25b Dam New Hampshire Hillsborough 74 High Fair 1967 Flood Risk Reduction
Hopkinton Dam New Hampshire Merrimack 71 High Not Available 1962 Flood Risk Reduction
Baker River Site 2 Dam New Hampshire Grafton 68 High Fair 1965 Flood Risk Reduction
Baker River Site 6a Dam New Hampshire Grafton 68 High Poor 1975 Flood Risk Reduction
Gregg Falls New Hampshire Hillsborough 66 High Satisfactory 1917 Hydroelectric
Hopkinton Dam - Dike H-3 New Hampshire Merrimack 66 High Not Available 1962 Flood Risk Reduction
Minnewawa New Hampshire Cheshire 63 High Satisfactory 1923 Hydroelectric
Baker River Site 8 Dam New Hampshire Grafton 63 High Satisfactory 1967 Flood Risk Reduction
Edward MacDowell Dam New Hampshire Hillsborough 63 High Not Available 1950 Flood Risk Reduction
Gunnison Lake Site D2 Dam New Hampshire Sullivan 62 High Fair 1983 Flood Risk Reduction
Locke 2 Dam New Hampshire Grafton 60 Low Satisfactory 1969 Recreation
Wilder New Hampshire Grafton 59 High Satisfactory 1950 Hydroelectric
Souhegan River Site 10a Dam New Hampshire Hillsborough 59 High Satisfactory 1966 Flood Risk Reduction
Vernon New Hampshire Cheshire 58 Low Satisfactory 1909 Hydroelectric
Cascade New Hampshire Coos 57 High Fair 1903 Hydroelectric
First Connecticut Lake Dam New Hampshire Coos 56 High Fair 1930 Hydroelectric
Balsams Mohawk River Dam New Hampshire Coos 55 Significant Not Rated — Recreation
Arlington Mills Res Wheeler Dam New Hampshire Rockingham 54 High Satisfactory 1922 Water Supply
Baker River Site 5 Dam New Hampshire Grafton 53 High Poor 1967 Flood Risk Reduction
Oliverian Dam New Hampshire Grafton 52 High Satisfactory 1962 Flood Risk Reduction
Everett Dam - Dike P-1 New Hampshire Hillsborough 50 High Not Available 1961 Flood Risk Reduction
Ragged Mountain Snow Pond Dam New Hampshire Merrimack 49 Low Fair 1988 Fish and Wildlife Pond
Badger Brook Nh-107 Embankment Dam New Hampshire Belknap 48 Undetermined Not Rated — Fish and Wildlife Pond
Bellows Falls New Hampshire Cheshire 48 Low Satisfactory 1907 Hydroelectric
Rice Reservoir Dam New Hampshire Sullivan 48 High Satisfactory 1935 Water Supply
Dead River Dam 1 New Hampshire Coos 47 High Fair 1970 Flood Risk Reduction
Chadwick Meadows Wildlife Ref Dam New Hampshire Merrimack 47 Significant Fair 1970 Recreation
Wolfeboro Sewage Lagoon Dam New Hampshire Carroll 45 High Fair 1975 Other
Eastman Falls New Hampshire Merrimack 43 Significant Satisfactory 1937 Hydroelectric
Dole Reservoir Dam New Hampshire Sullivan 43 High Fair 1913 Water Supply
Jackman Reservoir Dam New Hampshire Hillsborough 43 High Poor 1926 Hydroelectric
Cold River Site 1 Dam New Hampshire Carroll 43 High Satisfactory 1969 Flood Risk Reduction
Abeniki Lake Dam New Hampshire Coos 40 High Satisfactory 1900 Recreation
Souhegan River Site 12a North Dike New Hampshire Hillsborough 39 High Fair 1965 Flood Risk Reduction
Campton Pond Hydro Dam New Hampshire Grafton 39 High Fair 1890 Hydroelectric
Blackwater Dam - Little Hill Dike New Hampshire Merrimack 38 High Not Available 1941 Flood Risk Reduction
Gilman New Hampshire Coos 38 Low Satisfactory 1898 Hydroelectric
Babbidge Reservoir Dam New Hampshire Cheshire 38 High Satisfactory 1931 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.