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
Cleveland Brook Reservoir Dam Massachusetts Berkshire 71 High Satisfactory 1949 Water Supply
Lone Star Lake Kansas Douglas 71 High Satisfactory 1939 Recreation
Bayou Loco Dam Texas Nacogdoches 71 High Satisfactory 1977 Water Supply
Indian Lake Pennsylvania Somerset 71 High Satisfactory 1964 Recreation
Comanche Peak Safe Shutdown Dam Texas Somervell 71 Low Satisfactory 1979 Other
Newtown Hoffman Site 12e Dam New York Chemung 71 High Satisfactory 1989 Flood Risk Reduction
Rock Island Washington Douglas 71 High Satisfactory 1932 Hydroelectric
Beaver Creek Dam Virginia Henry 71 High Satisfactory — Water Supply
Lee Arizona Graham 71 High Satisfactory 1981 Flood Risk Reduction
Stony Creek Dam #10 Virginia Shenandoah 71 High Satisfactory — Flood Risk Reduction
Elysian California Los Angeles 71 High Satisfactory 1943 Water Supply
Harmon Creek No. 2 Dam West Virginia Brooke 71 High Satisfactory 1973 Flood Risk Reduction
Moose Hill Reservoir Dam Massachusetts Worcester 71 High Satisfactory 1980 Flood Risk Reduction
Waubonsie Cr. Watershed Site 11-1 Iowa Mills 71 Significant Satisfactory 1977 Flood Risk Reduction
Patterson Creek No.46 West Virginia Mineral 71 High Satisfactory 1965 Flood Risk Reduction
Marlin Run No. 1 West Virginia Pocahontas 71 High Satisfactory 1961 Flood Risk Reduction
Middle Fork Interbay California Placer 71 Low Satisfactory 1966 Irrigation
Indian Creek California Alpine 71 High Satisfactory 1967 Water Supply
Bee Run Dam West Virginia Roane 70 High Satisfactory 2005 Recreation
Lake Seven Falls No 3 Missouri Ste. Genevieve 70 High Satisfactory 1971 Recreation
Port Perry Dam Missouri Perry 70 High Satisfactory 1973 Recreation
Thousand Oaks Dam Missouri Platte 70 High Satisfactory 2002
Browns Falls New York St. Lawrence 70 High Satisfactory 1922 Hydroelectric
York Bldg Products Settling Pond 12 Maryland Cecil 70 Significant Satisfactory 2004 Tailings
Slate Creek California Plumas 70 Low Satisfactory 1961 Hydroelectric
Lake Panorama Dam Iowa Guthrie 70 Significant Satisfactory 1969 Recreation
Fort Knox Water Dam Alaska Fairbanks North Star Borough 70 Low Satisfactory 1995 Water Supply
Atlanta-Fulton Reservoir #2 Dam Georgia Fulton 70 High Satisfactory 2006 Water Supply
W Fork Pt Remove Creek Wid Site 03 Arkansas Franklin 70 Low Satisfactory 1965 Flood Risk Reduction
Roxboro East Ash Basin Dam North Carolina Person 70 High Satisfactory 1964 Other
James Canyon Dam New Mexico Grant 70 Low Satisfactory 2002 Flood Risk Reduction
Morris Reservoir Dam Connecticut Litchfield 70 High Satisfactory 1910 Water Supply
Mccullough Colorado El Paso 70 Significant Satisfactory 1990 Water Supply
Bear Gap No 6 Pennsylvania Columbia 70 High Satisfactory 1915 Water Supply
Allen Active Ash Basin Dam North Carolina Gaston 70 High Satisfactory 1972 Other
Reba California Alpine 70 High Satisfactory 1965 Water Supply
Dick Week California Napa 70 Significant Satisfactory 1955 Water Supply
Thomas Hill Reservoir Dam Missouri Randolph 70 High Satisfactory 1966 Flood Risk Reduction
Lower Two Medicine Montana Glacier 70 High Satisfactory 1967 Irrigation
Buck Main Ash Basin Dam North Carolina Rowan 70 High Satisfactory 1957 Tailings
Virgil Creek Watershed Floodwater Dam New York Tompkins 70 High Satisfactory 1998 Flood Risk Reduction
Stevenot California Calaveras 70 Low Satisfactory 1987 Water Supply
Black Tailings Dam Missouri Washington 70 High Satisfactory 1943 Tailings
Yards Creek Upper - Main Dam New Jersey Warren 70 High Satisfactory 1965 Hydroelectric
Covington Las Holding Dam Georgia Newton 70 High Satisfactory 2003 Water Supply
Upper Medicine Creek 410 Nebraska Frontier 70 Significant Satisfactory 1976 Flood Risk Reduction
Sixmile Creek Wid Site 17 Arkansas Franklin 70 Low Satisfactory 1956 Flood Risk Reduction
Morse Reservoir Dam Indiana Hamilton 70 High Satisfactory 1955 Water Supply
Pinery Colorado Douglas 70 Significant Satisfactory 1970 Water Supply
Natchez State Park Dam Mississippi Adams 70 High Satisfactory 1984 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.