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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
Carroll County Farm Museum Dam Maryland Carroll 20 Significant Fair 1964 Recreation
High Banks Maryland Talbot 19 Low — 1974 Recreation
Valley Mall Expansion Swm Dam Maryland Washington 19 Low — 1987 Flood Risk Reduction
Perrywood (Water Fowl Way) Maryland Prince George's 19 Low Fair 2003 Flood Risk Reduction
Glen Elyn Upper Dam Maryland Harford 19 Significant Fair 1975 Recreation
Queensberry Drive Swm Pond Maryland Calvert 19 Significant Fair 2001 Flood Risk Reduction
Gateway Village Pond Maryland Howard 19 Significant Fair 1988 Flood Risk Reduction
Midland-Gilmore Reservoir Maryland Allegany 19 High Poor 1903 Water Supply
Lower Lake Royer Maryland Washington 19 High Fair 1898 Water Supply
Masonville Dmcf Maryland Baltimore City 18 Low Satisfactory — Tailings
Junction Industrial Park Maryland Howard 18 High Satisfactory 1984 Flood Risk Reduction
Oliver Company (Lower Pond) Maryland Washington 18 Significant Poor 1957 Recreation
Fairfield East Dam Maryland Montgomery 18 High Fair 2004 Flood Risk Reduction
St Clair Farm Pond Maryland Frederick 18 Significant Satisfactory 1968 Recreation
Lake Waterford Dam Maryland Anne Arundel 18 Significant Satisfactory 1925 Recreation
Eden Mill Dam Maryland Harford 18 Significant Fair 1917 Recreation
Lake Varuna (Lakelands Drive) Maryland Montgomery 18 Low Satisfactory 1992 Flood Risk Reduction
Lutheran Village At Millers Grant Pond 1 (Vals Lane) Maryland Howard 18 Significant Satisfactory 2015 Flood Risk Reduction
Frederick Research Park Lot 4 Swm Pond Maryland Frederick 18 Low Satisfactory 1988 Flood Risk Reduction
Roberts Field Basin 3 (Sycamore Drive) Maryland Carroll 18 Significant Unsatisfactory 1992 Flood Risk Reduction
Tinkers Creek Regional Swm Pond No. 8 Maryland Prince George's 18 Significant Satisfactory 1991 Flood Risk Reduction
Williston Mill Dam (Md 617 Old Harmony Road) Maryland Caroline 18 Low Satisfactory 1936 Recreation
Madison Hill Swm Pond 1 (Silk Tree Drive) Maryland Prince George's 18 Significant Fair 1994 Flood Risk Reduction
Tower Hill Community Pond Dam (Tower Hill Road) Maryland St. Mary's 18 Significant Fair 1975 Fish and Wildlife Pond
Country Meadows Swm Pond Maryland Howard 17 Significant Poor 1988 Flood Risk Reduction
Bond Farm Pond Maryland Frederick 17 Low Not Rated 1973 Recreation
Seven Oaks Swm Dam Maryland Anne Arundel 17 Low Satisfactory 1989 Flood Risk Reduction
Md Route 104 Swm Pond (Sha Bmp 130077) Maryland Howard 17 Significant Poor 1990 Flood Risk Reduction
Pleasant Hills Swm Dam (Gentlebrook Road) Maryland Baltimore 17 Low Not Rated 1988 Flood Risk Reduction
Little Tonoloway Dam Maryland Washington 17 Low Fair 1953 Recreation
Columbia Creek Dam Maryland Wicomico 17 Low Poor 1987 Recreation
Bittinger Farm Pond Maryland Garrett 17 Low Fair 1968 Recreation
Seneca Meadows Swm Dam (Seneca Meadows Pkwy) Maryland Montgomery 17 Low Fair 1994 Flood Risk Reduction
Soil Conservation Service Lake (Soil Conservation Road) Maryland Prince George's 17 Low Fair 1939 Water Supply
Lake Walker Dam - Pond 2 (Russell Avenue) Maryland Montgomery 17 Low Satisfactory 1977 Recreation
Urieville Dam (Augustine Herman Hwy) Maryland Kent 17 Low Fair 1955 Recreation
Smithsburg Reservoir Maryland Washington 16 Significant Fair 1881 Water Supply
Brighton West Swm Pond Maryland Montgomery 16 Low Satisfactory 1975 Flood Risk Reduction
Mezick Farm Pond Maryland Queen Anne's 16 Low Fair 1974 Fish and Wildlife Pond
Watts Farm Pond Maryland Kent 16 Low Fair 1977 Recreation
Eaton-Raimond Pond Maryland Kent 16 Low — 1960 Recreation
Perrywood (Manor House Drive) Maryland Prince George's 16 High Fair 1984 Flood Risk Reduction
Owings Farm Pond Maryland Queen Anne's 16 Significant Fair 1967 Flood Risk Reduction
Nagels Mill Pond Maryland Caroline 16 Significant Fair 1860 Recreation
Calvert Gateway Maryland Calvert 16 Significant Fair 2000 Flood Risk Reduction
Greenspring Quarry Dam Maryland Baltimore 16 Significant Fair 2007 Recreation
Linden Chapel Road Swm Dam Maryland Howard 16 Significant Satisfactory 1989 Recreation
Collington Facility 14 Swm Dam Maryland Prince George's 16 Low Poor 1992 Flood Risk Reduction
Burba Lake Dam Maryland Anne Arundel 16 Significant Unsatisfactory 1927 Fire Protection, Stock, Or ...
Riawakin Pond (Nanticoke Road) Maryland Wicomico 16 Low Satisfactory 1950 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.