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Browse Dams

425 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 425 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
Smithville Dam (Possum Hill Road) Maryland Caroline 14 Low Satisfactory 1980 Recreation
Painters Mill Levee Maryland Baltimore 14 Significant Satisfactory 1989 Flood Risk Reduction
Bobcat Pond Maryland Allegany 13 Significant Poor 2016 Flood Risk Reduction
Gbmc Pond Maryland Baltimore 13 Significant Fair 1993 Flood Risk Reduction
Vista Business Park Maryland Washington 13 High Satisfactory 2020 Flood Risk Reduction
Wyndemere Swm Pond Maryland Howard 13 Significant Satisfactory 1995 Flood Risk Reduction
Jones Lake Dam Maryland Kent 13 Low Poor 1930 Recreation
Redington Lake Dam Maryland Prince George's 13 Low Poor 1940 Fish and Wildlife Pond
Unicorn Branch Dam Maryland Queen Anne's 13 Significant Fair 1964 Recreation
Holton Pond Dam Maryland St. Mary's 13 Low Fair 1958 Recreation
Cherry Hill Park Dam Maryland Prince George's 13 Significant Satisfactory 1986 Flood Risk Reduction
Big Meadows Farm Dam Maryland Kent 13 Low Fair 1979 Irrigation
Upper Lake Royer Maryland Washington 12 Low Fair 1898 Water Supply
Woodmark Community Pond Maryland Howard 12 Significant Unsatisfactory 1968 Recreation
Waiting Springs Swm Pond Maryland Howard 12 Significant Satisfactory 1971 Flood Risk Reduction
Easton Secondary Sewage Lagoon Maryland Talbot 12 Low — 1962 Other
Camden Avenue Dam Maryland Wicomico 12 Low Fair 1921 Recreation
Morris Mill Pond (South Division Street) Maryland Wicomico 12 High Satisfactory 1947 Recreation
Town Mall Swm Pond Maryland Carroll 12 Significant Poor 1985 Flood Risk Reduction
Turkey Branch Levee (Asset 17673,17674 and 17675) Maryland Montgomery 12 Significant Poor 1975 Flood Risk Reduction
Oakhurst Section 1 Swm Dam (Oakhurst Drive) Maryland Howard 12 Significant Fair 1998 Flood Risk Reduction
Coulbourn Mill Dam (South Division Street) Maryland Wicomico 12 High Poor 1947 Recreation
Roeder Farm Pond Maryland Allegany 12 Low Fair 1974 Recreation
Little Falls Dam - Potomac River Maryland Montgomery 12 Low — 1958 Water Supply
Heritage Glen Dam Maryland Prince George's 12 Significant Satisfactory 2004 Flood Risk Reduction
New Germany State Park Dam Maryland Garrett 12 Low Satisfactory 1930 Recreation
Mill Creek Dam Maryland Dorchester 11 Low — 1930 Recreation
Ppg Rubble Dam Maryland Allegany 11 Undetermined — 1950 Water Supply
Starkey Pond Maryland Calvert 11 Low Poor 1950 Recreation
Anderson Mill Pond (Pemberton Drive) Maryland Wicomico 11 Low Poor 1900 Recreation
Chambers Lake Maryland Caroline 11 Significant Poor 1937 Recreation
Parker Pond (N. Shumaker Drive) Maryland Wicomico 11 Low Fair 1956 Recreation
Teels Lake Dam Maryland Kent 11 Low Fair 1961 Recreation
Westlake Village Lake 3 Maryland Charles 11 Low Fair 1984 Recreation
Hall Creek Dam Maryland Cecil 11 Significant Unsatisfactory 1930 Recreation
Leonard Pond Maryland Wicomico 11 Low Fair 1914 Recreation
Mary Lee Lane Swm Dam Maryland Howard 11 Significant Satisfactory 1985 Flood Risk Reduction
Back Creek Dam (Old Telegraph Road) Maryland Cecil 11 Low Not Rated 1900 Recreation
Lake Allen Dam Maryland Anne Arundel 11 Low Poor 1947 Recreation
Rewastico Pond (Athol Road) Maryland Wicomico 10 Low Fair 1911 Recreation
Wildewood Dam On St Marys River Maryland St. Mary's 10 Low — 1989 Flood Risk Reduction
Umbc Central Campus Dam Maryland Baltimore 10 Significant Satisfactory 1975 Recreation
Volvo Hagerstown Swm Maryland Washington 10 Significant Poor 1961 Recreation
Norris Dam Maryland St. Mary's 10 Low Not Rated 1990 Recreation
Shellman Farm Dam Maryland Kent 10 Low Fair 1979 Recreation
Sassafras Mill Dam Maryland Kent 10 Significant Fair 1934 Recreation
Rising Sun Waste Water Lagoon Maryland Cecil 10 Low Not Rated 1964 Other
Pocomoke City Sewage Lagoon No.1 (North Pond) Maryland Worcester 10 Low Satisfactory 1972 Other
Pocomoke City Sewage Lagoon No. 2 (South Pond) Maryland Worcester 10 Low Satisfactory 1972 Other
Hagerstown City Park Lake (Key Street) Maryland Washington 10 Low Satisfactory 1920 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.