Flood Risk Reduction Dams

17,618 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Upper Washita River WS SCS Site 25 Dam Hemphill	Low Hazard	31 ft	1961	Earth	Texas
Upper Washita River WS SCS Site 26 Dam Hemphill	Significant Hazard	33 ft	1963	Earth	Texas
Upper Washita River WS SCS Site 27 Dam Hemphill	Low Hazard	32 ft	1963	Earth	Texas
Upper Washita River WS SCS Site 28 Dam Hemphill	Low Hazard	27 ft	1963	Earth	Texas
Upper Washita River WS SCS Site 29 Dam Hemphill	Low Hazard	26 ft	1963	Earth	Texas
Upper Washita River WS SCS Site 2 Dam Hemphill	Low Hazard	49 ft	1962	Earth	Texas
Upper Washita River WS SCS Site 30 Dam Hemphill	Low Hazard	42 ft	1963	Earth	Texas
Upper Washita River WS SCS Site 32 Dam Hemphill	Low Hazard	35 ft	1963	Earth	Texas
Upper Washita River WS SCS Site 3 Dam Hemphill	Low Hazard	48 ft	1962	Earth	Texas
Upper Washita River WS SCS Site 45 Dam Hemphill	Low Hazard	26 ft	1963	Earth	Texas
Upper Washita River WS SCS Site 4 Dam Hemphill	Low Hazard	40 ft	1962	Earth	Texas
Upper Washita River WS SCS Site 5 Dam Hemphill	Low Hazard	40 ft	1962	Earth	Texas
Upper Washita River WS SCS Site 6 Dam Hemphill	Low Hazard	32 ft	1962	Earth	Texas
Upper Washita River WS SCS Site 7 Dam Hemphill	Low Hazard	34 ft	1962	Earth	Texas
Upper Washita River WS SCS Site 8 Dam Hemphill	Low Hazard	48 ft	1962	Earth	Texas
Upper Washita River WS SCS Site 9 Dam Hemphill	Significant Hazard	48 ft	1962	Earth	Texas
Upper Yockanookany WS Str 1 Dam Choctaw	High Hazard	25 ft	1975	Earth	Mississippi
Upper Yockanookany WS Str 2 Dam Choctaw	High Hazard	21 ft	1979	Earth	Mississippi
Upper Yockanookany WS Str 4 Dam Choctaw	High Hazard	27 ft	1979	Earth	Mississippi
Upper Yockanookany WS Str No 3 Dam Choctaw	High Hazard	18 ft	1975	Earth	Mississippi
Upper Yocona Watershed Structure Y-14-01 Dam Lafayette	High Hazard	28 ft	1965	Earth	Mississippi
Upper Yocona Watershed Structure Y-14-02 Dam Lafayette	Low Hazard	30 ft	1965	Earth	Mississippi
Upper Yocona Watershed Structure Y-14-03 Dam Lafayette	Low Hazard	33 ft	1965	Earth	Mississippi
Upper Yocona Watershed Structure Y-14-04 Dam Lafayette	Low Hazard	27 ft	1965	Earth	Mississippi
Upper Yocona Watershed Structure Y-14-05 Dam Lafayette	Low Hazard	28 ft	1965	Earth	Mississippi
Upper Yocona Watershed Structure Y-14-06 Dam Lafayette	Low Hazard	26 ft	1971	Earth	Mississippi
Upper Yocona Watershed Structure Y-14-07 Dam Lafayette	Significant Hazard	32 ft	1971	Earth	Mississippi
Upper Yocona Watershed Structure Y-14-08 Dam Pontotoc	Low Hazard	20 ft	1974	Earth	Mississippi
Upper Yocona Watershed Structure Y-14-09 Dam Pontotoc	Low Hazard	26 ft	1974	Earth	Mississippi
Upper Yocona Watershed Structure Y-14-10 Dam Pontotoc	Low Hazard	27 ft	1974	Earth	Mississippi
Upper Yocona Watershed Structure Y-14-11 Dam Pontotoc	Low Hazard	27 ft	1970	Earth	Mississippi
Upper Yocona Watershed Structure Y-14-12 Dam Pontotoc	Low Hazard	26 ft	1970	Earth	Mississippi
Upper Yocona Watershed Structure Y-14-13 Dam Pontotoc	Low Hazard	21 ft	1970	Earth	Mississippi
Upper Yocona Watershed Structure Y-14-16 Dam Lafayette	Low Hazard	34 ft	1971	Earth	Mississippi
Upper Yocona Watershed Structure Y-14-18 Dam Lafayette	Low Hazard	24 ft	—	Earth	Mississippi
Upper Yocona WS Str Y-14-15 Dam Lafayette	Low Hazard	33 ft	1970	Earth	Mississippi
Upper Yocona WS Str Y-14-17 Dam Lafayette	Low Hazard	33 ft	1971	Earth	Mississippi
Urbach Dam 1 (Lower) Lancaster	Low Hazard	25 ft	1991	Earth	Nebraska
Ursino Dam Union	Low Hazard	13 ft	1927	Concrete	New Jersey
Us 77 Road Fill Dam Riley	High Hazard	29 ft	1967	Earth	Kansas
Utaba Retarding Weber	High Hazard	—	1962	Earth	Utah
Utah County 94-53-67md Utah	Significant Hazard	—	1994	Earth	Utah
Utah County - Hobble Creek Debris Basin Utah	High Hazard	—	1985	Earth	Utah
Utah County - Payson Canyon Debris Basin Utah	Significant Hazard	—	—	Earth	Utah
Utah County - Santaquin Debris Utah	High Hazard	—	1955	Earth	Utah
Utah County Thistle Creek Debris Utah	Significant Hazard	—	1990	Earth	Utah
Utah Dept. of Transportation Basin 1 Salt Lake	Significant Hazard	—	—	Earth	Utah
Utecht Dam Adams	Low Hazard	13 ft	1960	Earth	Nebraska
Utica Harbor Dam Oneida	Low Hazard	24 ft	1912	Concrete	New York
Utt Dam Davis	Low Hazard	23 ft	2016	Earth	Iowa