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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
Conway Sportsman's Club Upper Pennsylvania Butler 21 Significant Not Rated 1917 Recreation
Wharton Boulevard Stormwater Pennsylvania Chester 21 High Fair 1999 Flood Risk Reduction
Orchard Park Meadows Retention Bas Pennsylvania Allegheny 21 High Fair 1989 Flood Risk Reduction
Tamarack Lake B (Pa-461b) Pennsylvania Crawford 21 High Fair 1962 Flood Risk Reduction
Allegheny River Lock and Dam 6 Pennsylvania Armstrong 21 Low Not Available 1928 Navigation
Reading Anthracite - Elangowen Pennsylvania Schuylkill 20 Low Not Available —
Premium Fine Coal Cleaning Plant Pennsylvania Schuylkill 20 Low Not Available —
Waste Management & Processors - Wmpi Pennsylvania Schuylkill 20 High Not Available —
Dormoy Lake Pennsylvania Monroe 20 Undetermined Not Rated 1930 Recreation
Caputo Pennsylvania Pike 20 Significant Fair — Recreation
Lewis Pennsylvania Greene 20 Significant Fair — Recreation
Lake Tahoe Pennsylvania Somerset 20 Low Not Rated 1950 Recreation
Kephart Pennsylvania Centre 20 High Poor 1974 Recreation
Group Camp Pennsylvania Beaver 20 High Fair 1938 Recreation
Cresson Lakes Pennsylvania Cambria 20 Low Not Rated 1913 Recreation
Stark Pennsylvania Lackawanna 20 Low Satisfactory 1850 Recreation
Chain Pennsylvania Northampton 20 Low Satisfactory — Recreation
Sones Pond Pennsylvania Sullivan 20 Low Not Rated 1919 Recreation
Lake Minausin Pennsylvania Monroe 20 Low Unsatisfactory 1903 Recreation
Hilloch Pennsylvania Delaware 20 Significant Fair 1951 Recreation
Hutchinson Pennsylvania Huntingdon 20 Low Not Rated 1959 Recreation
Lower Ridge Pennsylvania Westmoreland 20 High Poor 1915 Water Supply
Kinneyville Pond Pennsylvania Wayne 20 Low Satisfactory 1850 Recreation
Brown Creek Pennsylvania Luzerne 20 High Fair 1958 Debris Control
Naus and Newlyn Pennsylvania Monroe 20 Low Fair 1968 Recreation
Lake Netimus Pennsylvania Pike 20 High Fair 1930 Recreation
Hidden Lake Pennsylvania Luzerne 20 Significant Poor 1967 Recreation
Palmer Pennsylvania Berks 20 Low Poor 1969 Recreation
Ski Roundtop Pennsylvania York 20 Significant Not Rated — Grade Stabilization
Mountain Shadow Lake Pennsylvania Columbia 20 High Fair 1954 Recreation
Upper Mount Pleasant Pennsylvania Luzerne 20 High Poor 1882 Recreation
Glatco Lake Pennsylvania York 20 High Unsatisfactory — Recreation
Perkins Pond Pennsylvania Wayne 20 Significant Fair 1870 Recreation
Reservoir No 5 Pennsylvania Cambria 20 Significant Not Rated 1993 Water Supply
Pocono Highlands Pennsylvania Monroe 20 High Poor 1928 Recreation
Lake Russell Pennsylvania Pike 20 Significant Satisfactory 1957 Recreation
Jeddo Coal CO - Jeddo #8 Prep Plant Pennsylvania Luzerne 20 Low Not Available — Water Supply
Newport Plaza Pennsylvania Perry 20 High Fair — Flood Risk Reduction
Milltown Pennsylvania Chester 20 High Fair 1924 Water Supply
Saw Creek Club Pennsylvania Pike 20 High Poor 1919 Recreation
Bradshaw Reservoir Pennsylvania Bucks 20 Significant Fair 1988 Other
Lovelass Pennsylvania Wayne 20 High Fair 1919 Recreation
Sediment Basin No 3 Pennsylvania Lackawanna 20 Low Satisfactory — Other
Estates of Audubon Pennsylvania Montgomery 20 Significant Poor 1992 Recreation
York Haven Headrace Pennsylvania Lancaster 20 Low Satisfactory 1904 Hydroelectric
Mt Morris Sportsmens Association Pennsylvania Greene 20 Significant Satisfactory — Recreation
Pa-103 Pennsylvania Bradford 20 Low Not Rated 1974 Recreation
Lakemont Farms No 2 Pennsylvania Allegheny 20 Significant Satisfactory — Recreation
Isers Run Reservoir Pennsylvania Somerset 20 Low Not Rated 1982 Recreation
Lower (Pa-487a) Pennsylvania Crawford 20 High Fair 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.