Flood Risk Reduction Dams

17,618 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Big Sandy Creek WS SCS Gss 122 Wise	Low Hazard	27 ft	—	Earth	Texas
Big Sandy Creek WS SCS Gss 123 Wise	Low Hazard	18 ft	—	Earth	Texas
Big Sandy Creek WS SCS Gss 129 Wise	Low Hazard	32 ft	1994	Earth	Texas
Big Sandy Creek WS SCS Site 10 Dam Montague	High Hazard	42 ft	1957	Earth	Texas
Big Sandy Creek WS SCS Site 11 Dam Montague	Low Hazard	27 ft	1957	Earth	Texas
Big Sandy Creek WS SCS Site 12 Dam Montague	Low Hazard	35 ft	1958	Earth	Texas
Big Sandy Creek WS SCS Site 13a Dam Montague	Low Hazard	38 ft	1980	Earth	Texas
Big Sandy Creek WS SCS Site 13c Dam Montague	Low Hazard	34 ft	1980	Earth	Texas
Big Sandy Creek WS SCS Site 13 Dam Montague	Low Hazard	40 ft	1958	Earth	Texas
Big Sandy Creek WS SCS Site 14a Dam Wise	Low Hazard	33 ft	1997	Earth	Texas
Big Sandy Creek WS SCS Site 14 Dam Wise	Low Hazard	30 ft	1958	Earth	Texas
Big Sandy Creek WS SCS Site 18 Dam Montague	Low Hazard	30 ft	1967	Earth	Texas
Big Sandy Creek WS SCS Site 20 Dam Montague	Low Hazard	35 ft	1967	Earth	Texas
Big Sandy Creek WS SCS Site 22b Dam Montague	High Hazard	24 ft	1982	Earth	Texas
Big Sandy Creek WS SCS Site 23a Dam Wise	Low Hazard	38 ft	1984	Earth	Texas
Big Sandy Creek WS SCS Site 24a Dam Wise	Low Hazard	44 ft	1988	Earth	Texas
Big Sandy Creek WS SCS Site 24b Dam Wise	High Hazard	33 ft	1983	Earth	Texas
Big Sandy Creek WS SCS Site 24d Dam Wise	High Hazard	38 ft	1989	Earth	Texas
Big Sandy Creek WS SCS Site 25a Dam Wise	Low Hazard	31 ft	1988	Earth	Texas
Big Sandy Creek WS SCS Site 26 Dam Wise	High Hazard	23 ft	1984	Earth	Texas
Big Sandy Creek WS SCS Site 28 Dam Wise	Low Hazard	39 ft	1989	Earth	Texas
Big Sandy Creek WS SCS Site 2 Dam Clay	Significant Hazard	31 ft	1966	Earth	Texas
Big Sandy Creek WS SCS Site 32 Dam Wise	High Hazard	44 ft	1989	Earth	Texas
Big Sandy Creek WS SCS Site 36 Dam Wise	Low Hazard	27 ft	1983	Earth	Texas
Big Sandy Creek WS SCS Site 37 Dam Wise	High Hazard	29 ft	1995	Earth	Texas
Big Sandy Creek WS SCS Site 43 Dam Wise	High Hazard	48 ft	1981	Earth	Texas
Big Sandy Creek WS SCS Site 44 Dam Wise	High Hazard	39 ft	1981	Earth	Texas
Big Sandy Creek WS SCS Site 4 Dam Clay	Low Hazard	31 ft	1966	Earth	Texas
Big Sandy Creek WS SCS Site 5a Dam Clay	Low Hazard	25 ft	1968	Earth	Texas
Big Sandy Creek WS SCS Site 5b Dam Montague	Low Hazard	29 ft	1966	Earth	Texas
Big Sandy Creek WS SCS Site 6 Dam Montague	Significant Hazard	34 ft	1971	Earth	Texas
Big Sandy Dike Sweetwater	High Hazard	20 ft	1952	Earth	Wyoming
Big Santa Anita Los Angeles	High Hazard	225 ft	1927	Arch	California
Big Spring Creek Subws Lt - Str R-7-15 Marshall	Low Hazard	29 ft	1958	Earth	Mississippi
Big Spring Subwatershed Structure R-7-14 Dam Marshall	Low Hazard	36 ft	1958	Earth	Mississippi
Big Spring Subwatershed Structure R-7-16 Dam Marshall	Low Hazard	28 ft	1958	Earth	Mississippi
Big St Germain Vilas	Low Hazard	7 ft	1923	Gravity	Wisconsin
Big Tujunga No. 1 Los Angeles	High Hazard	220 ft	1931	Arch	California
Big Wash Beaver	Low Hazard	—	1943	Gravity	Utah
Big Wash Flood Control Beaver	Significant Hazard	—	1961	Earth	Utah
Big Whiskey 1 Subwatershed Site 13-1 Woodbury	Low Hazard	26 ft	1967	Earth	Iowa
Big Whiskey 1 Subwatershed Site 13-2 Woodbury	Low Hazard	22 ft	1967	Earth	Iowa
Big Whiskey 1 Subwatershed Site 3-1 Woodbury	Significant Hazard	38 ft	1968	Earth	Iowa
Big Whiskey Subwatershed Site 6-2 Woodbury	Low Hazard	37 ft	1967	Earth	Iowa
Big Wyacondah Watershed Site 10 Davis	Low Hazard	26 ft	1976	Earth	Iowa
Big Wyacondah Watershed Site 13 Davis	Low Hazard	28 ft	1976	Earth	Iowa
Big Wyacondah Watershed Site 14a Davis	Low Hazard	24 ft	1968	Earth	Iowa
Big Wyacondah Watershed Site 16 Davis	Low Hazard	28 ft	1976	Earth	Iowa
Big Wyacondah Watershed Site 18-1 Davis	Low Hazard	21 ft	1966	Earth	Iowa
Big Wyacondah Watershed Site 20 Davis	Low Hazard	27 ft	1971	Earth	Iowa