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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
Little Sugar Run Pennsylvania Westmoreland 25 Significant Not Rated — Water Supply
Parker Pennsylvania Clearfield 25 High Fair 1935 Recreation
Laurel Wood Pennsylvania Westmoreland 25 Low Fair — Recreation
Mountainview Orchards Pond Pennsylvania Adams 25 Undetermined Not Available 1967 Irrigation
Kapp Pennsylvania Susquehanna 25 Low Satisfactory 1990 Recreation
Weaver Lake Pennsylvania Westmoreland 25 High Fair 1961 Recreation
Hockenberry Run Pennsylvania Clearfield 25 Low Not Rated 1980 Recreation
Blue Marsh Dam - Dikes A and B Pennsylvania Berks 25 High Not Available 1977 Flood Risk Reduction
Upper Ridge Pennsylvania Westmoreland 25 High Poor 1915 Water Supply
Paradise Lake No 3 Pennsylvania Fayette 25 Significant Poor 1914 Recreation
Timber Lake B Pennsylvania Washington 25 Low Fair 1956 Recreation
G Pennsylvania Luzerne 25 Significant Fair 1916 Water Supply
Starpointe Pennsylvania Washington 25 Low Fair 1940 Recreation
Hull Plan Lake Pennsylvania Butler 25 High Poor — Recreation
Lake Heron Pennsylvania Perry 25 High Poor 1970 Recreation
Trough Creek Reservoir Pennsylvania Bedford 25 Low Not Rated — Water Supply
Laurel Lake Pennsylvania Cumberland 25 High Fair 1968 Recreation
Sedimentation Pond No. 8a Pennsylvania Washington 25 Low Not Available — Other
Raw Water Pond Pennsylvania Washington 25 Low Fair 1968 Grade Stabilization
Crum Creek Pennsylvania Delaware 25 High Fair 1920 Water Supply
Browns Pennsylvania Greene 25 Low Satisfactory 1919 Recreation
Pinetree Lake Pennsylvania Monroe 25 High Fair 1972 Recreation
Ebenezer Pennsylvania Lebanon 25 Significant Satisfactory 1820 Recreation
Stoevers Pennsylvania Lebanon 25 High Fair 1820 Recreation
Holly Pennsylvania Susquehanna 25 Low Fair 1988 Recreation
Cumberland No 1 Sed Pond Pennsylvania Greene 25 Significant Satisfactory 1985 Other
Boldy Pennsylvania Butler 25 Low Not Available 1967 Fish and Wildlife Pond
Lake Bonin Pennsylvania Bradford 25 High Satisfactory 1972 Recreation
Homer City Sed/Surge Pond Pennsylvania Indiana 25 Low Not Rated 1993 Other
Hatfield Ferry Sedimentation Pond Pennsylvania Greene 25 Significant Satisfactory — Other
Emerald No. 1 Sed Pond 11 Pennsylvania Greene 25 High Satisfactory — Other
Snyder Lake Pennsylvania Susquehanna 25 Significant Not Available 1971 Recreation
Deskus (Pa-452) Pennsylvania Wayne 25 High Fair 1963 Flood Risk Reduction
Reading Anthracite - Trevorton Pennsylvania Northumberland 25 High Not Available — Tailings
Lakeland Country Estates Green Lake Pennsylvania Butler 25 High Fair — Recreation
Schmunk Pennsylvania Fayette 25 Low Not Rated — Recreation
Wittmer Road Detention Pennsylvania Allegheny 25 High Satisfactory 1990 Flood Risk Reduction
Elroy Face Pennsylvania Indiana 25 High Fair 1954 Recreation
Koenigs Creek (Pa-425) Pennsylvania Schuylkill 25 High Satisfactory 1962 Flood Risk Reduction
Thomas Creek (Rc & D-105) Pennsylvania Susquehanna 24 High Satisfactory 1978 Flood Risk Reduction
Olympus Lake Pennsylvania Luzerne 24 Low Satisfactory 1937 Recreation
Laurel Highlands Baptist Camp Pennsylvania Somerset 24 High Fair 1982 Recreation
Bakerton Pennsylvania Cambria 24 Significant Not Rated 1921 Water Supply
Saddle Lake Pennsylvania Wyoming 24 High Satisfactory 1965 Recreation
Morganza Pennsylvania Washington 24 Low Satisfactory 1991 Flood Risk Reduction
Bigan Pennsylvania Somerset 24 High Fair 1957 Recreation
Lake Florence Pennsylvania Wayne 24 Significant Fair 1948 Recreation
Oak Tree Pennsylvania Mercer 24 Low Not Rated 1967 Recreation
Lower Pennsylvania Monroe 24 Low Fair 1921 Recreation
Suydam (Pa-418) Pennsylvania Wayne 24 High Satisfactory 1960 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.