Browse Dams

1,492 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 1,492 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
Glenwood Lake Pennsylvania Lackawanna 27 High Satisfactory 1930 Recreation
Agronomy Farm Pond Pennsylvania Centre 27 Low Not Available 1967 Irrigation
Greenwalt Pennsylvania Westmoreland 27 Significant Not Rated 1990 Recreation
Waterfall Way Detention Basin Pennsylvania Washington 27 Significant Satisfactory — Flood Risk Reduction
Bailey Mine Area No. 3 Saddle B Pennsylvania Greene 27 High Satisfactory 2014 Other
Minsi Lake Pennsylvania Northampton 27 High Satisfactory 1970 Recreation
Marquette Lake Pennsylvania Lebanon 27 High Poor 1943 Recreation
Oxford Valley Mall Pennsylvania Bucks 27 High Fair 1973 Flood Risk Reduction
Kooser Run Pennsylvania Somerset 27 High Fair 1959 Recreation
Sunrise Lake Pennsylvania Luzerne 27 Low Satisfactory 1962 Recreation
Hidden Valley Pennsylvania Butler 27 Low Not Available 1974 Recreation
Derry Rod and Gun Club Pennsylvania Westmoreland 27 High Fair 1952 Recreation
West Surge Pond Pennsylvania Beaver 27 Significant Satisfactory 1974 Other
Lukavick Pennsylvania Butler 27 Low Not Available 1969 Recreation
Garrett (Pa-413) Pennsylvania Wayne 27 High Fair 1970 Flood Risk Reduction
Cokeburg Pennsylvania Washington 27 High Poor 1902 Recreation
Stanford Avenue Detention Basin Pennsylvania Berks 27 High Fair 1978 Flood Risk Reduction
Licking Creek Pennsylvania Juniata 26 High Fair — Water Supply
Johnston Pennsylvania Butler 26 Low Not Rated 1978 Recreation
Waynesburg Lakes Pennsylvania Greene 26 Low Fair — Recreation
Lake Saxony Pennsylvania Butler 26 High Fair 1958 Irrigation
Richardson Pennsylvania Washington 26 High Satisfactory 1976 Recreation
Mine No 84 - Pond 6 West Dike Pennsylvania Washington 26 High Satisfactory — Other
No 1 Dam Pennsylvania Schuylkill 26 Low Not Rated 1915 Recreation
Stony Garden Reservoir Pennsylvania Monroe 26 Low Not Rated 1912 Water Supply
Kubalak Pennsylvania Bedford 26 Significant Not Rated — Recreation
White Oak Pond Pennsylvania Wayne 26 High Fair 1830 Recreation
Ambrose Mine Pennsylvania Armstrong 26 Low Not Rated — Other
Hankins Pond Pennsylvania Wayne 26 High Unsatisfactory 1830 Recreation
Irrigation Pond Pennsylvania Adams 26 Low Not Rated 1989 Irrigation
Reynolds Pond Pennsylvania Susquehanna 26 Low Not Available 1972 Recreation
Barnett Pennsylvania Lancaster 26 High Fair — Recreation
Long Run Reservoir No 1 Pennsylvania Carbon 26 High Fair 1885 Water Supply
Walker Farm Lagoon Pennsylvania Chester 26 High Satisfactory 2002 Other
Trax Farms Pennsylvania Washington 26 High Fair 1963 Irrigation
Rock Hollow Road Pennsylvania Berks 26 Low Poor 1969 Recreation
Lake Jean Pennsylvania Luzerne 26 High Fair 1950 Recreation
Star Lake Pennsylvania Susquehanna 26 High Fair — Recreation
Reynoldsville Storage #5 Pennsylvania Jefferson 26 High Poor 1901 Water Supply
Keen Lake Pennsylvania Wayne 26 High Poor 1851 Recreation
Woodridge Lake Pennsylvania Washington 26 High Satisfactory 1957 Irrigation
Freethy Pennsylvania Wayne 26 High Fair 1820 Recreation
Millwater Pennsylvania Berks 26 High Fair 1955 Recreation
Rose Valley Lake Pennsylvania Lycoming 26 High Fair 1972 Recreation
Bells Lakes Pennsylvania Washington 26 Significant Fair 1964
Hull Plan Lake Pennsylvania Butler 25 High Poor — Recreation
Lake Trexler Pennsylvania Monroe 25 Low Fair 1962 Recreation
Cumberland No 1 Sed Pond Pennsylvania Greene 25 Significant Satisfactory 1985 Other
Lake Bonin Pennsylvania Bradford 25 High Satisfactory 1972 Recreation
Lake Heron Pennsylvania Perry 25 High Poor 1970 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.