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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
Lake Churchill (Wynnfield Drive) Maryland Montgomery 44 Low Satisfactory 1971 Recreation
Oaks of Harford (Tollgate Road) Maryland Harford 43 Low Not Rated 1984 Flood Risk Reduction
York Bldg Products Settling Pond 9 Maryland Cecil 43 Significant Satisfactory 1988 Tailings
Centennial Park Dam Maryland Howard 42 High Satisfactory 1985 Recreation
Lake Roland Dam Maryland Baltimore 42 High Fair 1861 Recreation
Gilbert Run Dam 1 (Trinity Church) Maryland Charles 41 Significant Poor 1964 Flood Risk Reduction
Contee Main Settling Pond Maryland Prince George's 41 High Unsatisfactory 1973 Tailings
Lake Ashburton Reservoir and Storage Tanks Maryland Baltimore City 40 High Not Rated 1910 Water Supply
Lake Anita Louise Maryland Frederick 40 Low Not Rated 1973 Recreation
Inspiration Lake Maryland Montgomery 40 High Satisfactory 1950 Recreation
Industrial Dam (Blue Bridge) Maryland Allegany 40 Low — 1954 Water Supply
Woodlawn Railroad Embankment On Basin Run Maryland Cecil 40 High Poor 1940 Other
Towson Reservoir Storage Tanks Maryland Baltimore 40 High Satisfactory 2013 Water Supply
Reichs Ford Landfill Swm Dam Maryland Frederick 39 Low Satisfactory 1995 Flood Risk Reduction
Cove Point Lng Secondary Dam Maryland Calvert 38 Significant Fair 1974 Tailings
Lake Arbor (Lake Arbor Way) Maryland Prince George's 38 High Poor 1971 Recreation
Umstc Lower Dam (Curie Drive) Maryland Prince George's 38 Significant Fair 2001 Recreation
St Marys River Watershed Site 1 Maryland St. Mary's 38 High Fair 1975 Recreation
Meadow Run Dam Maryland Garrett 38 High Fair 1969 Recreation
Umbc Dam Maryland Baltimore 38 High Satisfactory 1976 Flood Risk Reduction
Gilbert Run Dam 3 (Jameson Dam) Maryland Charles 37 High Unsatisfactory 1964 Flood Risk Reduction
Gilbert Run Dam 2 (Wheatley) Maryland Charles 37 Significant Poor 1968 Recreation
Hillen Road Water Supply Tank Maryland Baltimore City 36 High Satisfactory 1920 Water Supply
Dobbin Road Swm Pond Maryland Howard 36 Significant Poor 1987 Flood Risk Reduction
Columbia Gateway Dam Maryland Howard 36 High Fair 1972 Flood Risk Reduction
Cox Creek Dmcf Maryland Anne Arundel 36 High Satisfactory 1960 Tailings
Broad Creek Dam Maryland Harford 36 High Fair 1948 Recreation
Greencastle Lakes Dam (Ballinger Drive) Maryland Montgomery 36 Low Satisfactory 1965 Recreation
Lake Whetstone Dam (Montgomery Village Avenue) Maryland Montgomery 36 High Poor 1966 Recreation
Little Youghiogheny Site 1 Maryland Garrett 36 High Fair 1964 Flood Risk Reduction
Lake Walker Dam - Pond 1 (Montgomery Village Avenue) Maryland Montgomery 35 High Satisfactory 1966 Recreation
Little Youghiogheny Site 2 Maryland Garrett 35 High Fair 1962 Flood Risk Reduction
Little Youghiogheny Site 3 Maryland Garrett 35 High Fair 1965 Flood Risk Reduction
Lake Jenkins Maryland Washington 35 Low Poor 1936 Recreation
Fedex Field Pond No. 1 Maryland Prince George's 35 High Fair 1997 Flood Risk Reduction
Guilford Reservoir Storage Tanks Maryland Baltimore City 35 High Satisfactory 1893 Water Supply
Greenspring East Swm Pond No. 3 (Stream Crossing Road) Maryland Baltimore 34 Low Poor 1995 Flood Risk Reduction
Great Falls Estate Dam Maryland Montgomery 34 Low Not Rated 1963 Recreation
Blairs Valley Dam Maryland Washington 34 High Satisfactory 1968 Recreation
Heritage Harbour (Mastline Drive) Maryland Anne Arundel 34 Low Fair 1974 Recreation
Russett Center Lower Dam / Pond #1 Maryland Anne Arundel 34 Low Satisfactory 1990 Flood Risk Reduction
Cohen Pond Maryland Frederick 33 Significant Poor 1952 Recreation
Chestertown Stablization Pond No. 2 Maryland Kent 32 Low Poor 1967 Other
Parker Farms Dam Maryland Prince George's 32 Low Poor 1978 Irrigation
Cranberry Branch Dam Maryland Carroll 32 Significant Fair 1957 Water Supply
Rattlewood Golf Course Maryland Montgomery 31 Significant Satisfactory 1975 Irrigation
Jessup Prison Dam Maryland Anne Arundel 31 Significant Fair 1982 Flood Risk Reduction
Boyd Farm Pond Maryland Talbot 31 Low — 1958 Recreation
Lake Montebello Maryland Baltimore City 30 High Fair 1880 Other
Victory Farms Maryland Montgomery 30 Low Not Rated 1973 Flood Risk Reduction

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.