Browse Dams

11,351 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 11,351 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
Louisville Club Pond Dam Alabama Barbour 11 Significant Not Rated 1958 Fire Protection, Stock, Or ...
Packer Lake California Sierra 11 Significant Not Rated 1899 Other
Mill Creek Dam Michigan Cheboygan 11 Significant Satisfactory 1984 Water Supply
Waite Pond Dam Massachusetts Worcester 11 Significant Poor — Recreation
City Shop Detention Pond Wyoming Goshen 11 Significant Fair 2017 Flood Risk Reduction
Cedar Grove Lake Oregon Clackamas 11 Significant Not Rated — Irrigation
Barberville Pond Rhode Island Washington 11 Significant Poor 1882 Fish and Wildlife Pond
Lake Hackney Dam New Jersey Gloucester 11 Significant Poor — Recreation
Number One Pond Dam Massachusetts Worcester 11 Significant Poor — Other
Iona Lake Dam New Jersey Gloucester 11 Significant Poor — Recreation
Graves Dam Connecticut New London 11 Significant Satisfactory — Recreation
Mirror Lake Dike Massachusetts Norfolk 11 Significant Poor — Recreation
Conner Jarvis East Pond Washington King 11 Significant Satisfactory 2018 Flood Risk Reduction
Collins Pond Dam Delaware Sussex 11 Significant Fair 1922 Recreation
Howe Reservoir Dam Massachusetts Worcester 11 Significant Fair — Recreation
Prindle Lake Dam Massachusetts Worcester 11 Significant Satisfactory 1952 Recreation
Paradise Pond Dam Massachusetts Worcester 11 Significant Fair — Recreation
Sand Lake Utah Summit 11 Significant Not Rated 1932 Irrigation
East Lake Dam New Jersey Salem 11 Significant Poor — Recreation
Anasagunticook Maine Oxford 11 Significant Satisfactory 1900 Water Supply
Wheeler Pond Dam Massachusetts Worcester 11 Significant Unsatisfactory — Recreation
Lake Riviera Dam New Jersey Ocean 11 Significant Satisfactory — Recreation
Huggy Bear Lake Pennsylvania Pike 11 Significant Poor — Recreation
Lisbon Pond Dam Connecticut Windham 11 Significant Not Rated 1959 Fish and Wildlife Pond
Tomlinson Mill Dam New Jersey Burlington 11 Significant Satisfactory — Recreation
Asnebumskit Pond Dam Massachusetts Worcester 11 Significant Fair 1950 Water Supply
Assabet River Dam Massachusetts Worcester 11 Significant Fair — Other
Dulles Airport Dam Virginia Loudoun 11 Significant Not Rated — Water Supply
Indian Mills Dam New Jersey Burlington 11 Significant Fair 1807 Recreation
Fish Lake - Elizabeth Pass Utah Summit 11 Significant Not Rated 1928 Irrigation
Spackman Brothers Dam Utah Cache 11 Significant Not Rated 1982 Irrigation
Langwater Pond Dam Massachusetts Bristol 11 Significant Fair — Recreation
Blood Pond Dam Massachusetts Plymouth 11 Significant Satisfactory 1930 Recreation
Hattertown Pond Dam Connecticut Fairfield 11 Significant Satisfactory 1840 Recreation
Memorial Pond Dam Massachusetts Norfolk 11 Significant Satisfactory — Recreation
Loch Lyall Dam New York Putnam 11 Significant Poor 1950 Recreation
Lower Chilson Pond Dam Michigan Livingston 11 Significant Satisfactory 1961 Recreation
Mathews Mill Pond Dam South Carolina Barnwell 11 Significant Poor 1910 Recreation
Fisher Pond Dam Connecticut Litchfield 11 Significant Not Rated 1959 Fish and Wildlife Pond
Spooner Lake Wisconsin Washburn 11 Significant Fair 1884 Recreation
Spofford Lake Dam New Hampshire Cheshire 11 Significant Satisfactory 1919 Recreation
Whipporwill Pennsylvania Schuylkill 11 Significant Satisfactory — Recreation
Cross Pond Dam Connecticut Fairfield 11 Significant Not Rated — Recreation
Sargent Center Infiltration Lagoon New Hampshire Hillsborough 11 Significant Not Rated — Other
Cooley Lake Dam Massachusetts Hampden 11 Significant Fair — Recreation
Jacobs Pond Dam Massachusetts Plymouth 11 Significant Fair 1730 Recreation
Potters Pond No. 1 (East) Utah Emery 11 Significant Not Rated 1975 Recreation
Valley Pond Dike Massachusetts Middlesex 11 Significant Satisfactory 1961 Recreation
Christensen Secondary Finish Lagoon Dam Nebraska Holt 11 Significant Satisfactory 1990 Other
Spring Street Dam Connecticut Middlesex 11 Significant Not Rated — 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.