High Hazard Dams

Loss of human life is likely if the dam fails.

Dam Name	Hazard	Height	Built	Type	State
Aspen (No. 6) Maricopa	High Hazard	30 ft	1973	Earth	Arizona
Associates Lake Dam Hinds	High Hazard	16 ft	2009	Earth	Mississippi
Assunpink #18 Dam Monmouth	High Hazard	38 ft	—	Earth	New Jersey
Assunpink #20 Dam Mercer	High Hazard	26 ft	—	Earth	New Jersey
Assunpink #21 Dam Mercer	High Hazard	25 ft	—	Earth	New Jersey
Assunpink #4 Dam Monmouth	High Hazard	24 ft	—	Earth	New Jersey
Assunpink # 6 Dam Mercer	High Hazard	31 ft	1975	Earth	New Jersey
Assunpink #8 Dam Mercer	High Hazard	20 ft	—	Earth	New Jersey
Aston Oaks Lake Dam Hamilton	High Hazard	66 ft	2000	Earth	Ohio
Asu-Norris Branch Dam Watauga	High Hazard	—	1974	Earth	North Carolina
Atagahi Lake Dam Transylvania	High Hazard	—	1973	Earth	North Carolina
Atascadero Park San Luis Obispo	High Hazard	18 ft	1918	Earth	California
Athens Fish and Game Club Lake Dam Henderson	High Hazard	28 ft	1920	Earth	Texas
Atkins Dam Harnett	High Hazard	—	—	Earth	North Carolina
Atkinson Pond Dam Chester	High Hazard	10 ft	1978	—	South Carolina
Atkins Reservoir Dam Franklin	High Hazard	33 ft	1930	Earth	Massachusetts
Atkisson Reservoir Harford	High Hazard	56 ft	1942	Concrete	Maryland
Atlanta-Fulton Reservoir #1 Dam Fulton	High Hazard	72 ft	1960	Earth	Georgia
Atlanta-Fulton Reservoir #2 Dam Fulton	High Hazard	70 ft	2006	Earth	Georgia
Atlanta Gas Light Lake Dam Cherokee	High Hazard	49 ft	1925	Earth	Georgia
Atlanta Reservoir Dam No. 1 Fulton	High Hazard	90 ft	1960	Earth	Georgia
Atlanta Reservoir Dam No. 2 Fulton	High Hazard	83 ft	1960	Earth	Georgia
Atles Mill Dam Lenawee	High Hazard	13 ft	1914	Earth	Michigan
Atoka Reservoir Atoka	High Hazard	80 ft	1957	Earth	Oklahoma
Atsion Lake Dam Burlington	High Hazard	19 ft	1930	Earth	New Jersey
Attica Dam (Upper) Wyoming	High Hazard	32 ft	1930	Earth	New York
Attica Upground Reservoir #2 Seneca	High Hazard	23 ft	2006	Earth	Ohio
Attoyac Bayou WS NRCS Site 23a Dam Nacogdoches	High Hazard	59 ft	2006	Earth	Texas
Attoyac Bayou WS SCS Site 9 Dam Shelby	High Hazard	31 ft	1980	Earth	Texas
Atwood Dam Tuscarawas	High Hazard	—	1936	Earth	Ohio
Atwood Lake Dam Jefferson	High Hazard	27 ft	1969	Earth	Missouri
Auburn Schuylkill	High Hazard	51 ft	1950	Concrete	Pennsylvania
Audie Lake Dam Bowie	High Hazard	16 ft	1965	Earth	Texas
Auds Creek WS SCS Site 4 Dam Lamar	High Hazard	28 ft	1960	Earth	Texas
Auds Creek WS SCS Site 8 A Dam Lamar	High Hazard	27 ft	1964	Earth	Texas
August A Busch Lake #16 Dam St. Charles	High Hazard	20 ft	1959	Earth	Missouri
August A Busch Lake #51 Dam St. Charles	High Hazard	27 ft	1962	Earth	Missouri
August A Busch Lake #570 Dam St. Charles	High Hazard	15 ft	1970	Earth	Missouri
Augusta Waterworks Dam Butler	High Hazard	39 ft	1940	Earth	Kansas
Auroraville Waushara	High Hazard	13 ft	1987	Gravity	Wisconsin
Austin Community Lake Dam Texas	High Hazard	27 ft	1958	Earth	Missouri
Austrian Santa Clara	High Hazard	185 ft	1950	Earth	California
Au Train Alger	High Hazard	31 ft	1910	Gravity	Michigan
Autry Pond Dam Cumberland	High Hazard	—	—	Earth	North Carolina
Autumn Lake Dam Jefferson	High Hazard	72 ft	1981	Earth	Missouri
Autumn Lake Dam Jefferson	High Hazard	32 ft	1962	Earth	Missouri
Autumn Lake Dam Brown	High Hazard	32 ft	1969	Earth	Indiana
Autumn Winds Dam Vanderburgh	High Hazard	—	1930	Earth	Indiana
Auxiliary Dam No 1 Logan	High Hazard	34 ft	1934	Rockfill	Arkansas
Auxiliary Dam No 2 Logan	High Hazard	33 ft	1966	Earth	Arkansas