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Browse Dams

1,939 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 1,939 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.

Name State County Height (ft) Hazard Condition Year Purpose
Wilber Lake Dam New York Otsego 50 High Fair 1935 Recreation
Cadyville New York Clinton 50 High Satisfactory 1922 Hydroelectric
Bradley Lake Dam New York Rensselaer 50 High Fair 1859 Recreation
Deerfield Reservoir #6 Dam New York Oneida 50 High Satisfactory 1900 Water Supply
Trinity Dam New York Westchester 50 High Satisfactory 1966 Water Supply
Merriewold Lake Dam New York Orange 50 Significant Poor 1953 Recreation
Newton Falls Upper New York St. Lawrence 50 High Satisfactory 1927 Hydroelectric
Lock E-17 Embankment Dam New York Herkimer 50 Significant Not Rated 1918 Hydroelectric
Emerson Produce Reservoir Dam & Dike New York Yates 50 Significant Poor 1962 Recreation
High Falls New York Lewis 50 High Satisfactory 1925 Hydroelectric
Cork Center Storage Reservoir Dam New York Fulton 49 High Fair 1919 Water Supply
Burt Dam New York Niagara 49 High Satisfactory 1924 Hydroelectric
Hornell Reservoir #1 Dam New York Steuben 48 Low Not Rated 1936 Water Supply
Browns Reservoir Dam New York Westchester 48 High Satisfactory 1924 Water Supply
Middle Falls New York Washington 48 Low Satisfactory 1915 Hydroelectric
Conewango Creek Site 1 Dam New York Cattaraugus 48 High Fair 1969 Flood Risk Reduction
Bog Brook Dam #1 New York Putnam 47 High Satisfactory 1893 Water Supply
Fresh Air Fund Dam #2 New York Dutchess 47 High Satisfactory 1966 Recreation
Camp Lakeland Pond Dam New York Cattaraugus 47 Low Not Rated 1964 Recreation
Norwich Reservoir #1 Dam New York Chenango 47 High Fair 1881 Water Supply
Indian Lake Stone Dam New York Hamilton 47 High Poor 1898 Recreation
Conewango Creek Site 3 Dam New York Chautauqua 47 Significant Poor 1978 Flood Risk Reduction
Lighthouse Hill New York Oswego 47 High Fair 1930 Hydroelectric
Clarks Creek Dam New York Chenango 46 High Satisfactory 1974 Flood Risk Reduction
Wright Lake Dam New York Rensselaer 46 High Fair 1861 Recreation
Ripley Reservoir Dam New York Chautauqua 46 Significant Poor 1950 Water Supply
Nathaniel Cole Park Dam New York Broome 46 Significant Satisfactory 1973 Recreation
Newtown Hoffman Site 1 Dam New York Chemung 46 High Satisfactory 1976 Flood Risk Reduction
First Reservoir Dam New York Rockland 46 High Poor 1917 Water Supply
Long Sault Dikes 1;3a,B,C;4a,B New York St. Lawrence 45 High Satisfactory 1958 Hydroelectric
Nys Atomic Development Dam #2 New York Cattaraugus 45 Low Not Rated 1963 Water Supply
Soft Maple Intake New York Lewis 45 High Satisfactory 1926 Hydroelectric
Richards Landing Dike I & Ii New York St. Lawrence 45 High Satisfactory 1958 Hydroelectric
Lower (South) Wiccopee Dam New York Putnam 45 High Poor 1913 Water Supply
Fairport Reservoir Dam #1 New York Ontario 45 High Poor 1923 Recreation
Minton Dam New York Chautauqua 45 Low Not Rated 1936 Water Supply
Lake Lagrange Dam New York Wyoming 45 Low Not Rated 1961 Water Supply
Mongaup New York Sullivan 45 High Fair 1925 Hydroelectric
Akron Reservoir Dam New York Genesee 45 Significant Not Rated 1927 Water Supply
Franklin Falls New York Franklin 45 Low Satisfactory 1906 Hydroelectric
Frankfort Reservoir Dam New York Herkimer 45 Significant Poor 1908 Water Supply
Fresh Air Fund Dam #1 New York Dutchess 45 High Satisfactory 1951 Recreation
Nanticoke Creek Site 7b Dam New York Tioga 44 High Satisfactory 1970 Flood Risk Reduction
Marcy Reservoir #11 Dam New York Oneida 44 High Not Rated 1915 Water Supply
Benson Mines Little River Dam New York St. Lawrence 44 Significant Poor 1948 Irrigation
Glenn Lake Dam New York Chenango 43 High Satisfactory 1965 Recreation
Mill C New York Clinton 43 Significant Satisfactory 1922 Hydroelectric
Indian Brook Reservoir Dam New York Westchester 43 High Satisfactory 1889 Water Supply
Schuylerville New York Saratoga 43 High Fair 1919 Hydroelectric
Conewango Creek Site 9a Dam New York Chautauqua 43 High Fair 1972 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.