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Browse Dams

83 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 83 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
Griffith Lake Dam Delaware Kent 13 High Poor — Fish and Wildlife Pond
Betts Pond Main Dam Delaware Sussex 13 High Fair — Recreation
Swiggetts Pond Dam Delaware Sussex 12 High Fair — Recreation
Red Mill Pond Dam Delaware Sussex 12 High Fair 1925 Recreation
Porter Reservoir Dam Delaware New Castle 12 High Fair 1909 Water Supply
Town of Selbyville Wastewater Lagoon Delaware Sussex 12 High Fair — Other
Ingram Pond Dam Delaware Sussex 12 High Fair — Fish and Wildlife Pond
Trussams Pond Dam Delaware Sussex 12 Significant Fair — Recreation
Masseys Mill Pond Dam Delaware Kent 12 Low Not Rated 1933 Fish and Wildlife Pond
Reynolds Pond Delaware Sussex 11 High Fair — Recreation
Shoals Branch Dam Delaware Sussex 11 High Poor — Recreation
Cubbage Pond Dam Delaware Sussex 11 High Fair 1880 Recreation
Collins Pond Dam Delaware Sussex 11 Significant Fair 1922 Recreation
Fleetwood Pond Dam Delaware Sussex 11 High Fair 1968 Recreation
Garrisons Lake Dam Delaware Kent 11 High Fair 1964 Fish and Wildlife Pond
Portsville Mill Pond Dam Delaware Sussex 11 Low Fair — Fish and Wildlife Pond
Clendaniel Pond Dam Delaware Sussex 10 High Not Rated 1810 Recreation
Burton Pond Dam Delaware Sussex 10 High Satisfactory — Recreation
Morris Millpond Dam Delaware Sussex 10 Significant Not Rated 1929 Recreation
Derby Pond Dam Delaware Kent 10 High Fair 1967 Fish and Wildlife Pond
Goslee Mill Pond Dam Delaware Sussex 10 Significant Not Rated — Recreation
Waples Pond Dam Delaware Sussex 10 Low Fair — Fish and Wildlife Pond
Lums Pond Dam Delaware New Castle 10 Low Not Rated — Recreation
Davis Pond Dam Delaware Sussex 10 Significant Fair — Fish and Wildlife Pond
Betts Pond Route 113 Dam Delaware Sussex 10 High Fair — Recreation
Duck Creek Pond Dam Delaware Kent 9 High Not Rated — Recreation
Hudson Pond Dam Delaware Sussex 9 Low Poor 1958 Fish and Wildlife Pond
Brandywine Creek Dam No. 9 Delaware New Castle 9 Low Not Rated 1800 Recreation
Wheatley Pond Dam Delaware Kent 8 High Fair — Recreation
Shallcross Lake Dam Delaware New Castle 8 Low Not Rated — Recreation
Gordons Pond Dam Delaware Sussex 7 Low Not Rated 1967 Recreation
Cartanza/Ez Farms Dam Delaware Kent 7 High Not Rated — Recreation
City of Harrington Sewage Lagoon Delaware Kent 6 High Fair 1971 Other

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.