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
University Park Airport Pond 4a Pennsylvania Centre 29 Significant Fair 1998 Flood Risk Reduction
Mill Pond Pennsylvania Pike 29 High Fair 1929 Recreation
Breskin No 1 Pennsylvania Westmoreland 29 Low Satisfactory 1973 Recreation
Grahamville Reservoir Pennsylvania Erie 29 High Fair 1906 Water Supply
Beech Mountain Lake Pennsylvania Luzerne 29 High Poor 1966 Recreation
Broomall Lake Pennsylvania Delaware 29 Low Fair 1883 Recreation
Cave Hollow Pennsylvania Fayette 29 High Fair 1926 Water Supply
Cummings Pennsylvania Indiana 29 High Fair 1908 Recreation
Dutch Country Egg Farm Pennsylvania Lebanon 29 Low Not Rated - Irrigation
Amerikohl Management Pennsylvania Butler 29 Low Not Rated 1983 Other
Colonial No 3 Pennsylvania Fayette 29 Low Not Rated 1907 Recreation
Brinkerton Pennsylvania Westmoreland 29 Low Not Rated 1903 Recreation
Maggio Estate No 2 Pennsylvania Lycoming 29 High Poor 1953 Recreation
Glade Run Pennsylvania Butler 29 High Satisfactory 1955 Recreation
Buzzard Swamp No 6 Pennsylvania Elk 29 High Fair 1971 Recreation
Lawson Pennsylvania Wyoming 28 Low Not Available 1970 Recreation
Aylesworth Creek Dam - Mayfield Dike Pennsylvania Lackawanna 28 High Not Available 1970 Flood Risk Reduction
Industrial Wastes, INC South Pond Pennsylvania Beaver 28 Low Satisfactory 1990 Recreation
Hanger Service Road Det Basin Pennsylvania Allegheny 28 Low Satisfactory 1992 Flood Risk Reduction
Toby Creek Impoundment Basin Pennsylvania Luzerne 28 High Satisfactory 1940 Flood Risk Reduction
Lake Ladore Pennsylvania Wayne 28 High Satisfactory 1860 Recreation
Belmont Lake Pennsylvania Wayne 28 High Poor 1830 Recreation
Lake Oyler Pennsylvania Cumberland 28 High Fair - Grade Stabilization
Wohelo Lake Pennsylvania Franklin 28 Significant Fair 1953 Recreation
Pond No 3 Pennsylvania Chester 28 Low Fair - Tailings
Elm Lake Pennsylvania Pike 28 High Fair 1972 Recreation
Homewood Pennsylvania Beaver 28 Significant Fair 1852 Recreation
Lower Mount Pleasant Pennsylvania Luzerne 28 High Poor 1882 Water Supply
Toland Mine Pennsylvania Cumberland 28 Low Not Rated 1981 Tailings
Croops Pennsylvania Luzerne 28 High Satisfactory 1958 Recreation
Askon Hollow Pennsylvania Fayette 28 High Fair 1963 Water Supply
Highlands Farm Pennsylvania Adams 28 Significant Fair 1966 Irrigation
Saddlers Run Pennsylvania Lebanon 28 Low Not Rated 1957 Recreation
Cabin Creek Pennsylvania York 28 High Fair 1925 Water Supply
Wolfe Farm Pennsylvania Cumberland 28 High Fair 1966 Irrigation
Carbondale No 4 Pennsylvania Lackawanna 28 High Poor 1892 Water Supply
Minsi Lake Pennsylvania Northampton 27 High Satisfactory 1970 Recreation
Cokeburg Pennsylvania Washington 27 High Poor 1902 Recreation
Christman Pennsylvania Berks 27 High Poor 1972 Recreation
Solebury Farm Pennsylvania Bucks 27 High Fair 1953 Recreation
Oxford Valley Mall Pennsylvania Bucks 27 High Fair 1973 Flood Risk Reduction
Garrett (Pa-413) Pennsylvania Wayne 27 High Fair 1970 Flood Risk Reduction
Lake Shawnee Pennsylvania Susquehanna 27 Significant Not Available 1970 Recreation
West Surge Pond Pennsylvania Beaver 27 Significant Satisfactory 1974 Other
Stanford Avenue Detention Basin Pennsylvania Berks 27 High Fair 1978 Flood Risk Reduction
Bailey Mine Area No. 3 Saddle B Pennsylvania Greene 27 High Satisfactory 2014 Other
Dinsmore No 2 Pennsylvania Washington 27 High Satisfactory 1909 Recreation
Doverspike Brothers Pennsylvania Jefferson 27 Low Not Rated - Other
Warrior Ridge Pennsylvania Huntingdon 27 Low Satisfactory 1906 Hydroelectric
Duffield Pond Pennsylvania Susquehanna 27 Significant Not Available 1973 Fish and Wildlife Pond

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.