Browse Dams

11,354 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 11,354 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
Ryder Pond Dam New York Dutchess 12 Significant Poor 1951 Recreation
Leatherwood Lake Dam Ohio Guernsey 12 Significant Satisfactory 1972 Recreation
Rock City Saw Mill Dam New York Dutchess 12 Significant Poor 1900 Recreation
Lloyd Sutton Dam New York Cortland 12 Significant Not Rated 1968 Fire Protection, Stock, Or ...
Vaughn Log Pond Oregon Lane 12 Significant Not Rated 1951 Other
Hough Millpond Dam South Carolina Kershaw 12 Significant Poor 1935 Recreation
Moosic Lakes Pennsylvania Lackawanna 12 Significant Poor - Recreation
Siegel Marsh Pennsylvania Erie 12 Significant Not Rated 1958 Recreation
Little Keen Pond Pennsylvania Wayne 12 Significant Fair 1902 Recreation
Forest Lake Pennsylvania Susquehanna 12 Significant Satisfactory 1842 Recreation
Beal Reservoir Levee Texas Brazoria 12 Significant Poor 1950 Recreation
Fairfield Sewage Equalization Basin - Lagoon 2 Washington Spokane 12 Significant Fair 1966 Other
Bush Pond Dam Connecticut New London 12 Significant Fair - Recreation
Carmel Pond Dam Connecticut New Haven 12 Significant Satisfactory 1956 Recreation
Jim's Dam Connecticut Litchfield 12 Significant Not Rated - Recreation
Rader Pond Dam Connecticut Litchfield 12 Significant Unsatisfactory - Recreation
Wilsonville Aka Langers Pond Dam Connecticut Windham 12 Significant Satisfactory 1880 Recreation
Lees Pond #1 Dam Connecticut Fairfield 12 Significant Not Rated - Recreation
Augusta Diversion Dam Georgia Columbia 12 Significant Satisfactory 1857 Hydroelectric
Gaylord Pond Dam Connecticut Litchfield 12 Significant Satisfactory 1900 Recreation
Upper Pond Dam (Aka Holbrook ) Connecticut New London 12 Significant Fair 1860 Recreation
Wilson Corne Mill Dam Massachusetts Middlesex 12 Significant Satisfactory 1675 Recreation
Weidman Mill Pond Dam Michigan Isabella 12 Significant Fair 1900 Recreation
Barrett Lake Minnesota Grant 12 Significant Satisfactory 1937 Recreation
White Pond Dam New York Putnam 12 Significant Not Rated 1899 Recreation
Mosher Dam New York Oswego 12 Significant Satisfactory 1937 Other
Ashley Waterworks Reservoir Ohio Delaware 12 Significant Poor 1954 Recreation
Monhagen Lake Dam New York Orange 12 Significant Fair 1867 Water Supply
South Lake Dam (Lower) New York Putnam 12 Significant Poor 1921 Recreation
Ferguson Lake Dam New York Westchester 12 Significant Not Rated 1915 Water Supply
Hailesboro #4 Plant Dam New York St. Lawrence 12 Significant Not Rated 1912 Hydroelectric
Beede North Oregon Harney 12 Significant Not Rated 1916 Irrigation
Four Seasons Lake Pennsylvania Susquehanna 12 Significant Poor - Recreation
Somerset Lakes Basin No 2 Pennsylvania Chester 12 Significant Fair 1991 Flood Risk Reduction
Provo-Orem L. D. S. Camp Utah Sanpete 12 Significant Not Rated - Recreation
Davis Pond Dam Connecticut Fairfield 12 Significant Satisfactory - Recreation
Beard Mill Pond Dam Connecticut Fairfield 12 Significant Not Rated - Recreation
Bristol Myers Squibb Dam Connecticut New Haven 12 Significant Satisfactory - Other
Fedex Detention Basin Dam Connecticut Tolland 12 Significant Satisfactory - Flood Risk Reduction
Jaycee Partlow Dam Number One Alabama Tuscaloosa 12 Significant Not Rated 1937 Recreation
Deal Dam Florida Washington 12 Significant Not Rated 1963 Recreation
Henry's Pond #2 Dam Connecticut Hartford 12 Significant Not Rated - Recreation
Durham Rod & Gun Club Dam Connecticut Middlesex 12 Significant Not Rated 1993 Recreation
Horseshoe Lake Dam Louisiana Morehouse 12 Significant Fair 1948 Recreation
Lermond Pond Maine Knox 12 Significant Poor 1850 Hydroelectric
Mashpee River Fishway Dam Massachusetts Barnstable 12 Significant Poor - Other
Powwow Pond Dam New Hampshire Rockingham 12 Significant Fair 1935 Recreation
Kenneth Hill Pond Dam New Hampshire Strafford 12 Significant Poor 1970 Fish and Wildlife Pond
All Vac Dam North Carolina Union 12 Significant Not Rated - Fire Protection, Stock, Or ...
Muskingum River Lock and Dam No. 10 Ohio Muskingum 12 Significant Poor 1841 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.