Browse Dams

13,006 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 13,006 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
South River Dam #4 Virginia Augusta 56 High Satisfactory — Flood Risk Reduction
Lake Louise Dam Missouri Livingston 56 High Satisfactory 1997
Indian Creek Community Dam Missouri Livingston 56 High Satisfactory 1988 Recreation
Eklutna Dam Alaska Municipality of Anchorage 56 High Satisfactory 1965 Hydroelectric
Lake Icaria Dam (Site M-1-A Walters Cr) Iowa Adams 56 Significant Satisfactory 1974 Flood Risk Reduction
Moody Reservoir Dam Connecticut New Haven 56 High Satisfactory 1900 Water Supply
Middle Big Nemaha 18 Nebraska Johnson 56 Significant Satisfactory 2003 Flood Risk Reduction
Little Choconut Site 2b Dam New York Broome 56 High Satisfactory 1968 Flood Risk Reduction
Lake Thoreau Dam Virginia Fairfax 56 High Satisfactory — Recreation
Buckeye Water District Reservoir Ohio Columbiana 56 High Satisfactory 2008 Water Supply
Mannington Water Supply Dam West Virginia Marion 56 High Satisfactory 1964 Recreation
Point A Alabama Covington 56 High Satisfactory 1925 Hydroelectric
West Lake Vermont Windham 56 High Satisfactory 2015 Recreation
Lima Montana Beaverhead 56 High Satisfactory 1934 Irrigation
Windsor #8 Colorado Larimer 56 High Satisfactory 1903 Irrigation
Hunters Run Structure No. 2 Ohio Fairfield 56 Significant Satisfactory 1955 Flood Risk Reduction
Lake Macbride Dam Iowa Johnson 56 Significant Satisfactory 1930 Recreation
Green Valley Lake California San Bernardino 56 Low Satisfactory 1925 Water Supply
Lonedell Lake Dam Missouri Franklin 56 High Satisfactory 1972 Recreation
Sunridge Canyon (No. 7) Arizona Maricopa 56 High Satisfactory 1972 Flood Risk Reduction
Marrowbone Dam Tennessee Davidson 56 High Satisfactory 1939
Foothills Colorado Boulder 56 High Satisfactory 1911 Irrigation
Hickory Grove Lake Dam Iowa Story 56 Significant Satisfactory 1966 Recreation
W Fork Pt Remove Creek Wid Site 10 Arkansas Pope 56 Low Satisfactory 1964 Flood Risk Reduction
Lake Kah-Tan-Da Dam Missouri Perry 56 High Satisfactory 1966 Recreation
Craig Holding & Evaporation Ponds Colorado Moffat 56 Significant Satisfactory 1978 Water Supply
Detention Pine Ridge No. 1 Wyoming Goshen 56 Low Satisfactory 1958 Flood Risk Reduction
J.C. Jacobsen California Kern 56 High Satisfactory 1973 Water Supply
Joe Machs Lake Dam Missouri St. Louis 56 High Satisfactory 1996
E Fork Pt Remove Creek Wid Site 05 Arkansas Johnson 56 Low Satisfactory 1967 Fish and Wildlife Pond
Landolt Dam Missouri Montgomery 56 High Satisfactory 2006
2nd Broad River Watershed Dam #2 North Carolina Rutherford 56 High Satisfactory 1995 Flood Risk Reduction
Rattle & Snap #21 Dam Tennessee Maury 56 Significant Satisfactory 1980
Middle Big Nemaha 4 Nebraska Johnson 56 Low Satisfactory 2003 Flood Risk Reduction
Foss Valley California Napa 56 High Satisfactory 1988 Water Supply
Parr Shoals Dam South Carolina Newberry 55 High Satisfactory 1914 Hydroelectric
Bosch No. 2 California Sonoma 55 Significant Satisfactory 1962 Water Supply
Lac Lafitte Dam Missouri St. Francois 55 High Satisfactory 1977 Recreation
Mountain Run Dam #50 Virginia Culpeper 55 High Satisfactory — Flood Risk Reduction
Solomon Gulch Spillway Alaska Chugach Census Area 55 High Satisfactory 1981 Hydroelectric
Furnace Brook W.S. #2 Dam New Jersey Warren 55 High Satisfactory 1971 Flood Risk Reduction
Lake Afton Dam Kansas Sedgwick 55 High Satisfactory 1942 Recreation
Chief Creek Dam Tennessee Lewis 55 Significant Satisfactory 1970
Muddy Creek Dam #19 North Carolina McDowell 55 Significant Satisfactory 1961 Flood Risk Reduction
Cottonwood Creek 6-B Nebraska Saunders 55 Significant Satisfactory 1979 Flood Risk Reduction
Cushman No. 1 Spillway Washington Mason 55 High Satisfactory 1990 Hydroelectric
Yards Creek Lower - Main Dam New Jersey Warren 55 High Satisfactory 1965 Hydroelectric
Georgetown Dam Montana Deer Lodge 55 High Satisfactory 1900 Hydroelectric
Lake Delhi Dam Iowa Delaware 55 Significant Satisfactory 1922 Recreation
Big Sand Wash West Utah Duchesne 55 High Satisfactory 2006 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.