Browse Dams

830 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 830 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
Amwell No. 1 Dam New Jersey Hunterdon 22 Significant Satisfactory — Recreation
Yards Creek Auxiliary Reservoir Dam New Jersey Warren 22 Low Satisfactory 1965 Hydroelectric
Highland Lakes Dam New Jersey Sussex 22 High Satisfactory 1937 Recreation
Fawn Lake Dam New Jersey Sussex 22 Significant Poor 1940 Recreation
Campbells Pond Dam New Jersey Essex 22 Significant Poor 1899 Water Supply
Echo Lake Spillway Dam New Jersey Passaic 22 High Fair 1926 Water Supply
Lake Neepaulin Dam New Jersey Sussex 22 Significant Satisfactory 1927 Recreation
Stony Brook W.S. Site 11 (Amwell) Dam New Jersey Hunterdon 22 Significant Poor 1963 Flood Risk Reduction
Bells Lake Dam New Jersey Gloucester 22 Significant Poor 1928 Recreation
Branchville Reservoir Dam New Jersey Sussex 22 Significant Satisfactory 1934 Water Supply
High Crest Lake Dam New Jersey Passaic 22 High Poor 1952 Recreation
Lake Arcadia Dam #1 New Jersey Passaic 22 High Poor 1926 Recreation
Apshawa Main Dam New Jersey Passaic 22 Significant Satisfactory 1912 Recreation
Clearwater Detention Dam New Jersey Union 22 High Fair 1994 Flood Risk Reduction
Forest Hill Park Dam New Jersey Passaic 22 Significant Satisfactory — Recreation
Rickabear Dam New Jersey Morris 22 Significant Satisfactory 1954 Recreation
Donald R. Wheeler (Surprise Lake) Dam New Jersey Morris 22 High Satisfactory 1909 Recreation
Longwood Lake Dam New Jersey Morris 22 High Poor 1898 Recreation
Glen Wild Lake Dam New Jersey Passaic 21 Significant Fair 1918 Recreation
Locust Lake Dam New Jersey Warren 21 High Satisfactory — Recreation
Amphibious Lake Dam New Jersey Burlington 21 Low Not Available 1967 Recreation
Lake Conway Dam New Jersey Sussex 21 High Poor 1958 Recreation
Mcmillan Reservoir Dam New Jersey Bergen 21 Low Fair — Recreation
Delaware Lake Dam New Jersey Warren 21 Low Poor — Recreation
Yards Creek Upper - East Dike New Jersey Warren 21 High Satisfactory 1965 Hydroelectric
Grenloch Lake Dam New Jersey Gloucester 21 Significant Fair 1907 Recreation
Mill Pond Dam New Jersey Bergen 21 High Fair 1908 Recreation
Bankbridge Dam New Jersey Gloucester 21 Low Satisfactory — Recreation
Spooky Brook Dam New Jersey Somerset 21 Significant Poor 1971 Recreation
Wreck Pond Dam New Jersey Monmouth 20 Low — — Recreation
Matawan Lake Dam New Jersey Monmouth 20 High Poor 1923 Recreation
Little Gloucester Dam New Jersey Camden 20 Significant Poor — Recreation
Lake Topanemus Dam New Jersey Monmouth 20 High Fair 1915 Recreation
Btmua Reservoir Dam New Jersey Ocean 20 High Satisfactory — Water Supply
Merrill Creek Northwest Dike 2 New Jersey Warren 20 High Satisfactory — Other
Elkinton Pond Dam New Jersey Salem 20 High Poor 1923 Recreation
Birchwood Lake Dam New Jersey Morris 20 High Poor — Recreation
Cliffwood Lake Dike New Jersey Sussex 20 Low Fair — Recreation
Lake Tappan Dike New Jersey Bergen 20 Low — — Water Supply
Kopycinski Pond Dam New Jersey Warren 20 Low — — Recreation
New Jersey No Name # 88 Dam New Jersey Burlington 20 Low — — Recreation
Openaka Lake Dam New Jersey Morris 20 Significant Poor 1750 Recreation
Merrill Creek Northwest Dike 1 New Jersey Warren 20 High Satisfactory — Other
Lake Panorama Dam New Jersey Sussex 20 Significant Poor 1957 Recreation
Wadsworth Lake Dam New Jersey Gloucester 20 High Poor 1926 Recreation
Cliffwood Lake Dam New Jersey Sussex 20 Low Satisfactory 1962 Recreation
Assunpink #8 Dam New Jersey Mercer 20 High Poor — Water Supply
Alloway Lake Dam New Jersey Salem 20 Significant Satisfactory 1949 Recreation
Cub Lake Dam New Jersey Sussex 20 Significant Satisfactory — Recreation
Lake Mohawk Dam New Jersey Sussex 20 High Satisfactory 1927 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.