Browse Dams

7,732 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 7,732 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
Manor Lake Pennsylvania Bucks 9 Low Poor 1930 Recreation
Cherry Valley Pond Rhode Island Providence 9 Significant Poor 1958 Recreation
Collier Mills Dam New Jersey Ocean 9 Low Poor 1942 Recreation
Beaver Creek 4 Wisconsin Juneau 9 Low Poor 1935 Irrigation
Wincheck Pond Rhode Island Washington 9 Significant Poor 1885 Recreation
Wildlife Pond Dam New Hampshire Belknap 9 Low Poor 1973 Fish and Wildlife Pond
Clark County 16 Wisconsin Clark 9 Low Poor 1935 Irrigation
Westvaco Corporation Dam South Carolina Hampton 9 Low Poor 1997 Fish and Wildlife Pond
Bourn Hadley Pond Dam Massachusetts Worcester 9 Low Poor 1940 Recreation
Hidden Lake Dike Vermont Windham 9 Low Poor 1850 Other
Baylors Lake Pennsylvania Lackawanna 9 Low Poor 1946 Recreation
Lake Shawnee Dam New Jersey Morris 9 Significant Poor — Recreation
Unger Pennsylvania Wayne 9 Significant Poor 1947 Recreation
Wagner Wyoming Natrona 9 Low Poor 1909 Irrigation
Putney Dam Michigan Jackson 9 Low Poor 1848 Recreation
Upper Waterloo Lake Dam New Jersey Sussex 9 Low Poor — Recreation
Hart Pond Dam Connecticut Litchfield 9 Significant Poor — Recreation
O'Connor Dam 2 Nebraska Dawson 9 Low Poor 1955 Other
Penacook Lake Dam New Hampshire Merrimack 9 High Poor 1873 Water Supply
Dorrs Pond Dam New Hampshire Hillsborough 9 High Poor 1934 Recreation
Simmons Pond Rhode Island Newport 9 Significant Poor 1800 Fish and Wildlife Pond
Coastal Timber CO Dam South Carolina Horry 9 High Poor 1970 Recreation
Lagoon Reservoir Dam Texas Brazoria 9 Significant Poor 1967 Recreation
Cedar Pines Lake Dam South Carolina Lancaster 9 Low Poor 1955 Recreation
Glenwood 26 Minnesota Pope 9 Low Poor 1964 Recreation
Peeles Pond Dam South Carolina Marlboro 9 Low Poor 1950 Recreation
Gorton Pond Rhode Island Kent 9 Low Poor 1865 Other
Lake Wynooska Pennsylvania Pike 9 Low Poor 1926 Recreation
Stephen Lake Dam New Jersey Atlantic 9 Significant Poor — Recreation
Blaisdell Lake Dam New Hampshire Merrimack 9 Low Poor 1916 Recreation
J Hancock Mutual Life Dam South Carolina Newberry 9 Low Poor — Recreation
Billings Pond Pennsylvania Pike 9 Low Poor 1865 Recreation
Silica Pond Dam New Hampshire Cheshire 9 Significant Poor 1930 Recreation
Walker Pond Vermont Rutland 9 Low Poor 1964 Recreation
Lake Oberst Dam New Jersey Gloucester 9 Significant Poor —
Hankins Pond Dam New Jersey Cumberland 9 Significant Poor — Recreation
Collinsville Dam Massachusetts Middlesex 9 Significant Poor 1850 Other
Hopkins Mill Pond Rhode Island Providence 9 Low Poor 1865 Other
Upper Hiawatha Dam Michigan Montmorency 9 Significant Poor 1947 Recreation
Chamblee Road Dam North Carolina Wake 9 High Poor — Other
Orangeville Dam Michigan Barry 9 Significant Poor 1920 Recreation
Lake Ames Dam New Jersey Morris 9 Significant Poor 1934 Recreation
Nelson Hill Subdivision Lake Dam Georgia Lowndes 9 High Poor —
Burnt Mill Pond Dam Massachusetts Worcester 9 Low Poor 1900 Recreation
Evas Marsh Dam New Hampshire Hillsborough 9 Low Poor 1962 Recreation
Lake Wackendaw Dam South Carolina Charleston 9 Undetermined Poor 1954 Irrigation
Guignard Pond Dam South Carolina Lexington 9 Low Poor 1900 Recreation
New Jersey No Name # 131 Dam New Jersey Salem 9 Significant Poor —
Cedar Lake Dam New Jersey Gloucester 9 Low Poor — Recreation
Edward's Pond Rhode Island Washington 9 Significant Poor —

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.