Flood Risk Reduction Dams

17,618 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Beulah Flood Control Dam Mercer	High Hazard	52 ft	1982	Earth	North Dakota
B. Everett Jordan Dam Chatham	High Hazard	114 ft	1974	Earth	North Carolina
Beyer Dam Cheyenne	Significant Hazard	19 ft	1964	Earth	Nebraska
Bh Rc&D Grade Structure Bh Ca-305.3-La Lawrence	Low Hazard	50 ft	1976	Earth	South Dakota
Biddle Creek Detention Dam Shawnee	High Hazard	26 ft	—	Earth	Kansas
B-I Detention Basin Dam Comanche	Significant Hazard	21 ft	1999	Earth	Oklahoma
Bidwell Bar Canyon Saddle Butte	High Hazard	47 ft	1968	Earth	California
Biermaier Pond Todd	Low Hazard	11 ft	1969	Earth	Minnesota
Big Bear Lake Dam Scioto	High Hazard	37 ft	1972	Earth	Ohio
Big Bend Dam Lyman	High Hazard	—	1963	Earth	South Dakota
Big Casino Creek Dam Fergus	High Hazard	68 ft	1976	Earth	Montana
Big Cedar Creek WS Str # 13 Polk	Low Hazard	28 ft	1972	Earth	Georgia
Big Cedar Creek W/S Str. # 32 Polk	High Hazard	40 ft	1991	Earth	Georgia
Big Cedar Creek WS Str # 41 Polk	High Hazard	31 ft	1986	Earth	Georgia
Big Cedar Creek WS Str # 48 Polk	High Hazard	30 ft	1986	Earth	Georgia
Big Cedar Creek W/S Str. #50 Polk	High Hazard	37 ft	1969	Earth	Georgia
Big Coon Subwatershed Site 2-10a Woodbury	Low Hazard	47 ft	1999	Earth	Iowa
Big Coon Subwatershed Site 2-9a Woodbury	Low Hazard	45 ft	1999	Earth	Iowa
Big Coon Subwatershed Site 3-3 Woodbury	Low Hazard	41 ft	1999	Earth	Iowa
Big Coon Subwatershed Site 3a-4 Woodbury	Low Hazard	36 ft	1999	Earth	Iowa
Big Coon Subwatershed Site 6h-2 Woodbury	Low Hazard	33 ft	1999	Earth	Iowa
Big Coon Subwatershed Site D-2-1 Woodbury	Low Hazard	42 ft	1999	Earth	Iowa
Big Coon Subwatershed Site L-3 Woodbury	Low Hazard	22 ft	1998	Earth	Iowa
Big Coon Subwatershed Site M-5 Woodbury	Low Hazard	20 ft	2000	Earth	Iowa
Big Creek Barrier Dam Polk	High Hazard	84 ft	1974	Gravity	Iowa
Big Creek Diversion Dam Polk	High Hazard	80 ft	1970	Gravity	Iowa
Big Creek-Hurricane Creek B- 10 Carroll	Low Hazard	26 ft	2005	Earth	Missouri
Big Creek-Hurricane Creek B-102 Carroll	Low Hazard	18 ft	2006	Earth	Missouri
Big Creek-Hurricane Creek B- 11 Carroll	Low Hazard	22 ft	1992	Earth	Missouri
Big Creek-Hurricane Creek B-119 Carroll	Low Hazard	24 ft	2005	Earth	Missouri
Big Creek-Hurricane Creek B- 12 Carroll	Low Hazard	21 ft	1992	Earth	Missouri
Big Creek-Hurricane Creek B-121 Carroll	Low Hazard	20 ft	1999	Earth	Missouri
Big Creek-Hurricane Creek B- 13 Carroll	Low Hazard	22 ft	1991	Earth	Missouri
Big Creek-Hurricane Creek B- 14 Carroll	Low Hazard	26 ft	1992	Earth	Missouri
Big Creek-Hurricane Creek B- 15 Carroll	Low Hazard	28 ft	1995	Earth	Missouri
Big Creek-Hurricane Creek B- 16 Carroll	Low Hazard	31 ft	2001	Earth	Missouri
Big Creek-Hurricane Creek B- 17 Carroll	Low Hazard	29 ft	2001	Earth	Missouri
Big Creek-Hurricane Creek B- 18 Carroll	Low Hazard	26 ft	1992	Earth	Missouri
Big Creek-Hurricane Creek B- 2 Carroll	Low Hazard	30 ft	1995	Earth	Missouri
Big Creek-Hurricane Creek B- 20a Carroll	Low Hazard	27 ft	2005	Earth	Missouri
Big Creek-Hurricane Creek B- 24a Carroll	Low Hazard	30 ft	2006	Earth	Missouri
Big Creek-Hurricane Creek B- 25 Carroll	Low Hazard	27 ft	1992	Earth	Missouri
Big Creek-Hurricane Creek B- 26 Carroll	Low Hazard	28 ft	1994	Earth	Missouri
Big Creek-Hurricane Creek B- 27 Carroll	Low Hazard	26 ft	1992	Earth	Missouri
Big Creek-Hurricane Creek B- 3 Carroll	Low Hazard	27 ft	1992	Earth	Missouri
Big Creek-Hurricane Creek B- 30 Carroll	Low Hazard	22 ft	2005	Earth	Missouri
Big Creek-Hurricane Creek B- 31 Carroll	Low Hazard	29 ft	2005	Earth	Missouri
Big Creek-Hurricane Creek B- 32 Carroll	Low Hazard	15 ft	2005	Earth	Missouri
Big Creek-Hurricane Creek B- 33 Carroll	Low Hazard	22 ft	2006	Earth	Missouri
Big Creek-Hurricane Creek B- 34 Carroll	Low Hazard	28 ft	2006	Earth	Missouri