High Hazard Dams

Loss of human life is likely if the dam fails.

Dam Name	Hazard	Height	Built	Type	State
Altus Auxiliary Dike Kiowa	High Hazard	20 ft	1945	Earth	Oklahoma
Altus East Dike Kiowa	High Hazard	35 ft	1945	Earth	Oklahoma
Altus Lugert Dike Kiowa	High Hazard	47 ft	1945	Earth	Oklahoma
Altus North Dike Greer	High Hazard	45 ft	1945	Earth	Oklahoma
Altus South Dike Kiowa	High Hazard	46 ft	1945	Earth	Oklahoma
Aluma Oklahoma	High Hazard	38 ft	1921	Earth	Oklahoma
Alum Creek Dam Delaware	High Hazard	—	1974	Gravity	Ohio
Alum Creek Upground Reservoir Delaware	High Hazard	24 ft	1997	Earth	Ohio
Alum Creek Upground Reservoir No. 2 Delaware	High Hazard	36 ft	2004	Earth	Ohio
Alverson Pond Dam Spartanburg	High Hazard	23 ft	1958	—	South Carolina
Alvin R. Bush Dam Clinton	High Hazard	165 ft	1962	Rockfill	Pennsylvania
Aly Marie Lake Dam Ste. Genevieve	High Hazard	52 ft	—	—	Missouri
Alyson Pond Dam Wake	High Hazard	—	—	Earth	North Carolina
Amanda Jo Detention Dam Hardin	High Hazard	22 ft	2015	Earth	Kentucky
Amargosa Creek Los Angeles	High Hazard	65 ft	1998	Earth	California
Amarillo Terminal Dam Potter	High Hazard	21 ft	1964	Earth	Texas
Amawalk Dam Westchester	High Hazard	85 ft	1897	Earth	New York
Amazon Lake Dam Owen	High Hazard	27 ft	1975	Earth	Indiana
Amber Lake Dam Cherokee	High Hazard	32 ft	1999	Earth	Georgia
Ambrose Hyde	High Hazard	—	1935	Earth	South Dakota
American Can Company Dam Fairfield	High Hazard	53 ft	1970	Concrete	Connecticut
American Cent Corp Upper Dam Callaway	High Hazard	30 ft	—	Earth	Missouri
American Coal/Galatia/Bunkhouse Rdf Dam Saline	High Hazard	110 ft	—	Earth	Illinois
American Falls Power	High Hazard	87 ft	1927	Concrete	Idaho
American Felt Dam Fairfield	High Hazard	37 ft	1867	Masonry	Connecticut
American Fidelity Oklahoma	High Hazard	14 ft	1965	Earth	Oklahoma
American Tissue Kennebec	High Hazard	24 ft	1900	Masonry	Maine
Americas Basin Dam El Paso	High Hazard	31 ft	1991	Earth	Texas
Amery Polk	High Hazard	13 ft	1888	Gravity	Wisconsin
Amery Lake Dam Carroll	High Hazard	25 ft	—	Earth	Missouri
Ames Basin #2 Story	High Hazard	13 ft	1985	Earth	Iowa
Ames Basin #3 Story	High Hazard	10 ft	1985	Earth	Iowa
Ames Basin #4 Story	High Hazard	12 ft	1985	Earth	Iowa
Ames Pond Dam Middlesex	High Hazard	11 ft	1920	Concrete	Massachusetts
Ames Pond Dike A Middlesex	High Hazard	11 ft	2003	Earth	Massachusetts
Amethyst Basin San Bernardino	High Hazard	46 ft	2019	Earth	California
Amicalola Creek WS Str # 1 Dawson	High Hazard	44 ft	1960	Earth	Georgia
Amicalola Creek WS Str # 3 Dawson	High Hazard	56 ft	1963	Earth	Georgia
Amicalola Creek W/S Str. # 4 Dawson	High Hazard	48 ft	1962	Rockfill	Georgia
Amick Farms Dam Aiken	High Hazard	24 ft	1989	—	South Carolina
Amick Road Dam Alamance	High Hazard	—	—	Earth	North Carolina
Amick Upground Reservoir Morrow	High Hazard	40 ft	1968	Earth	Ohio
Amistad Dam Val Verde	High Hazard	254 ft	1969	Concrete	Texas
Ammons Lake Dam Lower Wake	High Hazard	—	1980	Earth	North Carolina
Ammons Lake Dam Upper Wake	High Hazard	—	—	Earth	North Carolina
Amole Arroyo Detention Dam Bernalillo	High Hazard	29 ft	1979	Earth	New Mexico
Amonate Slurry Impoundment McDowell	High Hazard	384 ft	—	Earth	West Virginia
Amon G Carter Dam Montague	High Hazard	80 ft	1956	Earth	Texas
Amoskeag Hillsborough	High Hazard	29 ft	1921	Concrete	New Hampshire
Amp Detention Dam Guilford	High Hazard	—	1996	Earth	North Carolina