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
Nielsen Dam C Washington Snohomish 9 High Poor 1973 Recreation
Nielsen Dam B Washington Snohomish 9 High Poor 1973 Recreation
Frances Coker Dam South Carolina Clarendon 9 Low Poor 1850 Recreation
Canoe Brook Dam New Jersey Essex 9 Low Poor 1880 Water Supply
Lake Calhoun Outlet Minnesota Kandiyohi 9 Low Poor 1937 Recreation
Longbranch LLC Fish Pond Dam South Carolina Richland 9 High Poor — Recreation
Sheffield Farms Pond Dam New York Schoharie 9 Significant Poor 1919 Fire Protection, Stock, Or ...
Beaver Lake Pennsylvania Lycoming 9 High Poor 1919 Recreation
New Brooklyn Dam New Jersey Camden 9 Significant Poor 1936 Recreation
Morse Pond Dam Massachusetts Worcester 9 Low Poor — Recreation
Nummytown Mill Pond Dam New Jersey Cape May 9 Significant Poor — Recreation
Big Island Wetland Dam Ohio Marion 9 Significant Poor 1995 Recreation
Bon Ami Pond Louisiana Beauregard 9 Low Poor 1900 Water Supply
Ramsdall Pond Dam Massachusetts Worcester 9 Significant Poor —
Upper Flint Pond Dam Massachusetts Middlesex 9 Significant Poor — Recreation
Mill Pond Dam Massachusetts Barnstable 9 Significant Poor 1930 Recreation
Baltic Reservoir Dam (East) Connecticut New London 9 Significant Poor — Water Supply
Anderson Lake Minnesota Douglas 9 Low Poor 1973 Other
Hickory Lake Dam New York Erie 9 Significant Poor 1990 Recreation
Ashepoo Plantation Pond Dam South Carolina Colleton 9 Low Poor 1973 Recreation
Cramer-Reichman Dam New York Sullivan 9 Significant Poor 1930 Recreation
Spruce Run Flow Measuring Weir Dam New Jersey Hunterdon 9 Low Poor 1960 Other
Barnwell State Park Upper Dam South Carolina Barnwell 9 High Poor — Recreation
Mcleods Upper Pond Dam South Carolina Lee 9 Low Poor 1970 Recreation
Pawtuckaway Lake/Gove Dike New Hampshire Rockingham 9 Significant Poor 1842 Recreation
Yokum Pond Dam Massachusetts Berkshire 9 Significant Poor — Recreation
Sagebrush Creek Dam Nevada Humboldt 9 Low Poor — Fish and Wildlife Pond
Wakefield Pond Dam South Carolina Abbeville 9 Low Poor 1948 Recreation
Holmes Mill Dam New York Dutchess 9 Significant Poor — Irrigation
Squires Lake Dam South Carolina Dillon 9 Undetermined Poor 1963 Recreation
Sotak Flowage Wisconsin Taylor 9 Low Poor 1965 Other
Old Pond Dam Massachusetts Bristol 9 Significant Poor 1751 Recreation
Wildlife Lake No1 South Carolina Hampton 9 Low Poor 1958 Recreation
Hillside Lake Dam New York Dutchess 9 Significant Poor 1934 Recreation
Spring Lake Rhode Island Providence 9 Significant Poor 1885 Recreation
Ocean Lake Habitat No. 5 Wyoming Fremont 9 Low Poor 1973 Fish and Wildlife Pond
Ocean Lake Habitat No. 6 Wyoming Fremont 9 Low Poor 1973 Fish and Wildlife Pond
Wakefield Pond Rhode Island Washington 9 High Poor — Other
Alitak Cannery Dam #1 Alaska Kodiak Island Borough 9 High Poor 1917 Water Supply
South Yates Pond Dam Louisiana Washington 9 Low Poor 1940 Recreation
Lake Albert Dam New Jersey Atlantic 9 Low Poor 1959 Recreation
Mcmillen Upper Pond Dam South Carolina Marion 9 Low Poor 1964 Recreation
Seney E-1 Pool Dam Michigan Schoolcraft 9 Low Poor 1937 Fish and Wildlife Pond
Medicine Lake Dam No. 11 Montana Sheridan 9 Low Poor 1935 Fish and Wildlife Pond
Onway Lake Dam New Hampshire Rockingham 9 Low Poor 1915 Recreation
Mirror Lake Dam South Carolina Richland 9 High Poor 1940 Recreation
Camp Jackson Dam South Carolina Allendale 9 Low Poor 1955 Recreation
Wannamaker Pond 1 Dam South Carolina Orangeburg 9 Low Poor 1970 Recreation
West Albany Storm Retention Basin B Dam New York Albany 9 Significant Poor — Flood Risk Reduction
Hoit Road Marsh Dam New Hampshire Merrimack 9 Low Poor 1968 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.