Browse Dams

11,361 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 11,361 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
Marysville Lake Dam Indiana Scott 42 Significant Poor 1956 Recreation
Little Falls Reservoir Dam New York Herkimer 42 Significant Satisfactory 1901 Water Supply
Wakefield Farms Lagoon 2 Dam Nebraska Dixon 42 Significant Satisfactory 2014 Other
Bogus Creek 2 Wisconsin Pepin 42 Significant Fair 1963 Flood Risk Reduction
Veeder Hills Dam California Napa 42 Significant Satisfactory — Irrigation
Waterloo New Reservoir Dam Illinois Monroe 42 Significant Not Available 1961 Water Supply
Sempervirens California Santa Cruz 42 Significant Satisfactory 1951 Other
City of Murdo Number #1 South Dakota Jones 42 Significant — 1938 Water Supply
Channel Lake Dam Ohio Perry 42 Significant Poor — Recreation
Lake Santee Indiana Decatur 42 Significant Fair 1965 Recreation
Lake Kiowa Dam Texas Cooke 42 Significant Satisfactory 1970 Recreation
Koinenia Lake Dam Oregon Marion 42 Significant Not Rated 1976 Irrigation
Richard L. Schafer Dam - Frazier Dike California Tulare 42 Significant Not Available 1961 Flood Risk Reduction
Hines Cooling Pond Florida Polk 42 Significant Not Rated 1998 Other
Pine Lake Utah Garfield 42 Significant Not Rated 1922 Fish and Wildlife Pond
Lake Scarborough Dam Texas Coleman 42 Significant Not Rated 1924 Water Supply
Wrigley Reservoir California Los Angeles 42 Significant Satisfactory 1930 Water Supply
Sah Fort Mead Florida Polk 42 Significant Not Rated 1990 Tailings
Williamson No. 1 California El Dorado 42 Significant Poor 1926 Water Supply
Horse Run No. 3 Dam Mb-40 Ohio Morgan 42 Significant Fair 1961 Other
Lake Keomah Dam Iowa Mahaska 42 Significant Satisfactory 1935 Recreation
Mosaic Csa F2a Florida Hillsborough 42 Significant Not Rated 1986 Tailings
Fourche Creek Wid Site 17 Arkansas Randolph 42 Significant Fair 1976 Flood Risk Reduction
S-50 Florida St. Lucie 42 Significant Not Rated 1961 Flood Risk Reduction
Lotus Lake Dam (Upper) Kentucky Bullitt 42 Significant Poor 1965 Recreation
Nelson Dam Virginia Nelson 42 Significant Fair — Recreation
Wayne Co. Roadgrade Dam 21-67-22 Iowa Wayne 42 Significant Satisfactory 1996 Other
New Concord Village Reservoir Dam Ohio Muskingum 42 Significant Fair 1955 Water Supply
Mainline 3 Oregon Crook 42 Significant Not Rated 1971 Irrigation
Upper Pine Lake Dam Iowa Hardin 42 Significant Satisfactory 1934 Recreation
Sporn Bottom Ash Dam West Virginia Mason 42 Significant Satisfactory — Tailings
Hillsboro Reservoir No. 1 Dam Ohio Highland 42 Significant Fair 1945 Water Supply
Hutchison Lake Dam Ohio Ross 42 Significant Fair 1961 Recreation
E3 Mix Area South Pasture Florida Hardee 42 Significant Not Rated 2001 Tailings
Admire-Allen City Lake (Karen Laue Dam) Kansas Lyon 42 Significant Poor 1967 Water Supply
Moravian Camp Lake Dam North Carolina Ashe 42 Significant Fair — Recreation
Caney Creek FRS 9 Kentucky Grayson 42 Significant Fair 1964 Flood Risk Reduction
Little River Camp Dam North Carolina Transylvania 42 Significant Satisfactory — Recreation
Duncan Park Lake Dam South Carolina Spartanburg 42 Significant Fair 1935 Recreation
Cooper Valley LLC Dam Ohio Jefferson 42 Significant Poor 1963 Other
Turkey Cr Watershed Site 55d Iowa Cass 42 Significant Satisfactory 1994 Flood Risk Reduction
Deep Creek No 2 Idaho Twin Falls 42 Significant Fair 1911 Other
Fgh2 Fort Green Mine Florida Hardee 42 Significant Not Rated 1980 Tailings
Santaquin Wastewater Lagoons Utah Utah 42 Significant Not Rated 2003 Water Supply
Arnolds Lake Dam North Carolina Lee 42 Significant Fair — Recreation
Woodbury County Roadgrade Dam 36-86-42 Iowa Woodbury 42 Significant Satisfactory 1990 Other
Dd No 21 Kansas Pottawatomie 42 Significant Fair 2009 Flood Risk Reduction
Mike Ross #2 Dam West Virginia Upshur 42 Significant Poor 2011
Rex Utah Sevier 42 Significant Not Rated 1948 Irrigation
Lake Alexander Dam Missouri Putnam 42 Significant Satisfactory 2004 Irrigation

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.