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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
Gable Park Woods Pennsylvania Lancaster 10 High Satisfactory — Flood Risk Reduction
Lehman Lake Pennsylvania Pike 10 High Unsatisfactory 1890 Recreation
Knox Road Detention Pennsylvania Montgomery 10 Significant Fair 1979 Flood Risk Reduction
Painter Den Pond Pennsylvania Sullivan 10 Low Not Rated — Other
Echo Lake Pennsylvania Northampton 10 Significant Poor 1911 Recreation
Flatbrook Way Lake Pennsylvania Pike 10 Low Fair — Recreation
First Pond Pennsylvania Pike 10 High Fair — Recreation
Dorys Pennsylvania Pike 10 Significant Fair 1919 Recreation
York Haven Main Dam Pennsylvania Dauphin 10 Low Satisfactory 1904 Hydroelectric
Lake Natalie Pennsylvania Lackawanna 10 High Satisfactory 1900 Recreation
Pocono Woodland Lake No 2 Pennsylvania Pike 10 Significant Poor — Recreation
Mine No 84 - Pond 6 East Dike Pennsylvania Washington 10 High Satisfactory — Other
Meyers Pond Dam Pennsylvania Crawford 10 Low Poor 1967 Fish and Wildlife Pond
Spring Garden Pennsylvania Bucks 9 Low Satisfactory 1920 Recreation
Hidden Lake Dam Pennsylvania Monroe 9 Significant Not Available 1928 Fish and Wildlife Pond
Waynewood Pennsylvania Wayne 9 Low Fair — Other
Marsh Run Pond Pennsylvania York 9 Undetermined Not Rated 1960 Recreation
Manor Lake Pennsylvania Bucks 9 Low Poor 1930 Recreation
Lake Elsie Pennsylvania Wayne 9 Significant Satisfactory 1929 Recreation
Indian Lake Pennsylvania Luzerne 9 High Fair 1928 Recreation
Marshall Lake Pennsylvania Monroe 9 High Unsatisfactory 1904 Recreation
Witmer Pennsylvania Monroe 9 Low Not Rated 1941 Recreation
Baylors Lake Pennsylvania Lackawanna 9 Low Poor 1946 Recreation
Unger Pennsylvania Wayne 9 Significant Poor 1947 Recreation
Elmcrest Pennsylvania Lackawanna 9 High Fair 1955 Recreation
Lake Wynooska Pennsylvania Pike 9 Low Poor 1926 Recreation
Billings Pond Pennsylvania Pike 9 Low Poor 1865 Recreation
Stevens Lake Pennsylvania Wyoming 9 High Fair 1961 Recreation
Lake Nephowen Pennsylvania Bradford 9 Low Not Rated — Other
Upper Rickards Pennsylvania Pike 9 High Fair 1937 Recreation
Open Woods Pond Pennsylvania Wayne 9 Low Fair 1932 Recreation
Barnes Pennsylvania Wayne 9 Low Fair — Recreation
Richland Crossing Detention Pennsylvania Bucks 9 Significant Fair 1999 Flood Risk Reduction
Fullers Lake Pennsylvania Susquehanna 9 Significant Satisfactory 1870 Recreation
Sickler Pond Pennsylvania Lackawanna 9 Low Fair 1910 Recreation
Lake Blytheburn Pennsylvania Luzerne 9 High Satisfactory 1912 Recreation
Brewster Pond Pennsylvania Susquehanna 9 Low Fair 1919 Recreation
Lauer Run Detention Basin Pennsylvania Berks 9 Significant Fair 1991 Flood Risk Reduction
Beaver Lake Pennsylvania Lycoming 9 High Poor 1919 Recreation
Crescent Lake Pennsylvania Susquehanna 9 Low Satisfactory 1919 Recreation
Starlight Lake Pennsylvania Wayne 9 Significant Fair 1880 Recreation
Lindenhurst Road - Basin B Pennsylvania Bucks 9 Significant Fair — Flood Risk Reduction
West Side Detention Pennsylvania Northampton 9 High Fair 1994 Flood Risk Reduction
Lake Underwood Pennsylvania Wayne 9 Significant Satisfactory 1890 Recreation
Blue Mountain Lake Pennsylvania Monroe 9 High Fair 1908 Recreation
Lake Maskenozha Pennsylvania Pike 9 High Fair 1893 Recreation
Carlisle Raw Water Intake Pennsylvania Cumberland 9 Low Satisfactory 1904 Water Supply
Wild Acres Lake Pennsylvania Pike 9 High Fair 1928 Recreation
Kizer Pond (Pica Pond) Pennsylvania Lackawanna 9 Low Satisfactory 1845 Recreation
Shillington Memorial Park Pennsylvania Berks 9 Significant Fair 1936 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.