Flood Risk Reduction Dams

17,618 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Amboese Dam Harlan	Low Hazard	24 ft	1960	Earth	Nebraska
Amelia Earhart Dam Middlesex	Low Hazard	21 ft	1965	Gravity	Massachusetts
American Falls Power	High Hazard	87 ft	1927	Concrete	Idaho
American Fidelity Oklahoma	High Hazard	14 ft	1965	Earth	Oklahoma
American Fork Debris Basin Utah	Significant Hazard	—	1984	Earth	Utah
Americas Basin Dam El Paso	High Hazard	31 ft	1991	Earth	Texas
Americas Ten Detention Pond Dam El Paso	Low Hazard	30 ft	1991	Earth	Texas
Ames Scott	Low Hazard	28 ft	1996	Earth	Minnesota
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
Amethyst Basin San Bernardino	High Hazard	46 ft	2019	Earth	California
Amherst 20 Fillmore	Low Hazard	18 ft	—	Rockfill	Minnesota
Amicalola Creek WS Str # 1 Dawson	High Hazard	44 ft	1960	Earth	Georgia
Amicalola Creek WS Str # 2 Dawson	Low Hazard	65 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
Amiret 19 Lyon	Low Hazard	22 ft	2011	Earth	Minnesota
Amiret 32 Lyon	Low Hazard	21 ft	2011	Earth	Minnesota
Amistad Dam Val Verde	High Hazard	254 ft	1969	Concrete	Texas
Amole Arroyo Detention Dam Bernalillo	High Hazard	29 ft	1979	Earth	New Mexico
Amos Gran Road Dam Dixon	Low Hazard	33 ft	1998	Earth	Nebraska
Amp Detention Dam Guilford	High Hazard	—	1996	Earth	North Carolina
Amstein Clay	Low Hazard	19 ft	1953	—	Kansas
Amsterdam Valley Retention Basin Dam Kenton	High Hazard	30 ft	—	Earth	Kentucky
Amy R. Foote Lincoln	Low Hazard	24 ft	1906	Earth	Colorado
Ancho Dam A-5a Colfax	Low Hazard	25 ft	1996	Earth	New Mexico
Ancho Dam A-6b Colfax	Low Hazard	27 ft	1996	Earth	New Mexico
Ancho Dam A-6c Colfax	Low Hazard	27 ft	1996	Earth	New Mexico
Ancho Dam A-8 Colfax	Low Hazard	37 ft	1997	Earth	New Mexico
Andale Frd No A-2 Sedgwick	High Hazard	18 ft	1963	Earth	Kansas
Andersen Farms Dam Dakota	Low Hazard	34 ft	2005	Earth	Nebraska
Anderson Santa Clara	High Hazard	240 ft	1950	Rockfill	California
Anderson Dam Kanawha	High Hazard	39 ft	1984	Earth	West Virginia
Anderson Dam Hamlin	Low Hazard	15 ft	2000	Earth	South Dakota
Anderson Dam 587 Banner	Low Hazard	36 ft	1969	Earth	Nebraska
Anderson Pond-Steele Steele	Low Hazard	13 ft	1972	Earth	Minnesota
Anderson Ranch Elmore	High Hazard	456 ft	1946	Earth	Idaho
Anderson River Watershed Structure U-8 Dubois	Low Hazard	39 ft	1989	Earth	Indiana
Andorra Springs Basin B Montgomery	High Hazard	16 ft	—	Earth	Pennsylvania
Andrews Dam 3664 Furnas	Low Hazard	20 ft	1960	Earth	Nebraska
Andrews Dam 3671 Furnas	Low Hazard	15 ft	1960	Earth	Nebraska
Andrews Dam 4054 Gosper	Low Hazard	22 ft	1980	Earth	Nebraska
Anets Woods West Basin Dam Cook	Significant Hazard	—	—	Earth	Illinois
Angel Park North Detention Basin Dam Clark	High Hazard	55 ft	1985	Earth	Nevada
Angel Park South Detention Basin Dam Clark	High Hazard	13 ft	1982	Earth	Nevada
Angus-Oslo 4 Polk	Low Hazard	22 ft	2000	Earth	Minnesota
Ankrom Dam Richardson	Low Hazard	28 ft	2005	Earth	Nebraska
Ann 6 Cottonwood	Low Hazard	26 ft	—	Rockfill	Minnesota
Annabella East Detention Basin Sevier	Significant Hazard	—	2017	Earth	Utah