Flood Risk Reduction Dams

17,618 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Winnebago Creek 41-4 Richardson	Low Hazard	36 ft	1978	Earth	Nebraska
Winnebago Creek 41-5 Richardson	Low Hazard	37 ft	1978	Earth	Nebraska
Winnebago Creek 42-3a Richardson	Low Hazard	43 ft	1978	Earth	Nebraska
Winnebago Creek 42-5 Richardson	Low Hazard	49 ft	1976	Earth	Nebraska
Winnebago Creek 43-2 Richardson	Low Hazard	35 ft	1978	Earth	Nebraska
Winnebago Creek 4-4 Richardson	Low Hazard	39 ft	1976	Earth	Nebraska
Winner Dam Harrison	Low Hazard	41 ft	2011	Earth	Iowa
Winnibigoshish Dam Cass	Significant Hazard	23 ft	1884	Earth	Minnesota
Winstead Reservoir Dam Holmes	Low Hazard	34 ft	1965	Earth	Mississippi
Winston-Salem Forsyth County Lagoon #1 Dam Forsyth	High Hazard	—	—	Earth	North Carolina
Winston-Salem Forsyth County Lagoon #3 Dam Forsyth	High Hazard	—	—	Earth	North Carolina
Wintermute Dam Frontier	Low Hazard	17 ft	1964	Earth	Nebraska
Winters Branch Dam Manassas	Significant Hazard	27 ft	—	Earth	Virginia
Winters Dam Red Willow	Low Hazard	20 ft	1960	Earth	Nebraska
Wintonbury Flood Control Site #1 Dam Hartford	High Hazard	23 ft	1963	Earth	Connecticut
Wisconsin Rapids Wood	Low Hazard	34 ft	1843	Gravity	Wisconsin
Wissing Dam Hall	Low Hazard	15 ft	1980	Earth	Nebraska
Wissler Dam Pawnee	Low Hazard	28 ft	1960	Earth	Nebraska
Wissota Chippewa	High Hazard	68 ft	1917	Gravity	Wisconsin
Wister Dam Le Flore	High Hazard	99 ft	1949	Earth	Oklahoma
Witte Dam Furnas	Low Hazard	20 ft	1960	Earth	Nebraska
Witte Dam 3694 Furnas	Low Hazard	16 ft	1960	Earth	Nebraska
Wittler-Dorland Road Dam Richardson	Low Hazard	45 ft	1981	Earth	Nebraska
Wittmer Road Detention Allegheny	High Hazard	25 ft	1990	Earth	Pennsylvania
Witt Watton Dam Richardson	Low Hazard	31 ft	1975	Earth	Nebraska
Wittwer Dam 2543 Richardson	Low Hazard	18 ft	2000	Earth	Nebraska
W. Kerr Scott Dam Wilkes	High Hazard	—	1963	Earth	North Carolina
Wolf Creek Dam Russell	High Hazard	—	1951	Gravity	Kentucky
Wolf Creek Subwatershed Site 3-1 Woodbury	Low Hazard	33 ft	1972	Earth	Iowa
Wolf Creek Subwatershed Site 3-2 Woodbury	Low Hazard	35 ft	1971	Earth	Iowa
Wolf Creek Subwatershed Site 4-4 Woodbury	Low Hazard	39 ft	1991	Earth	Iowa
Wolf Creek Subwatershed Site 5-1 Woodbury	Low Hazard	27 ft	1971	Earth	Iowa
Wolf Creek Subwatershed Site 5-2 Woodbury	Low Hazard	31 ft	1971	Earth	Iowa
Wolf Creek Subwatershed Site 5a-1 Woodbury	Low Hazard	40 ft	1971	Earth	Iowa
Wolf Creek Subwatershed Site 6-1 Woodbury	Low Hazard	26 ft	1971	Earth	Iowa
Wolf Creek Subwatershed Site M-2 Woodbury	Low Hazard	30 ft	1971	Earth	Iowa
Wolf Creek Subwatershed Site M-3 Woodbury	Low Hazard	29 ft	1971	Earth	Iowa
Wolfe Dam Grainger	Low Hazard	16 ft	1959	Earth	Tennessee
Wolf Run Lake Dam Noble	High Hazard	76 ft	1966	Earth	Ohio
Wolfsnare Lake Dam Virginia Beach	Unknown	7 ft	—	Earth	Virginia
Wolf-Wildcat 12 Gage	Low Hazard	37 ft	1985	Earth	Nebraska
Wolf-Wildcat 51 Pawnee	Low Hazard	37 ft	1994	Earth	Nebraska
Wolf-Wildcat 52 Pawnee	Low Hazard	35 ft	1994	Earth	Nebraska
Wolf-Wildcat 67 Pawnee	Low Hazard	31 ft	1998	Earth	Nebraska
Wolf-Wildcat 68 Pawnee	Low Hazard	30 ft	1998	Earth	Nebraska
Wolf-Wildcat 81 Gage	Low Hazard	39 ft	1990	Earth	Nebraska
Wolf-Wildcat S65 Pawnee	Low Hazard	29 ft	1990	Earth	Nebraska
Woltemath Dam Pawnee	Low Hazard	27 ft	2001	Earth	Nebraska
Woman Creek Jefferson	High Hazard	50 ft	1995	Earth	Colorado
Woodbury Hudson Rd Washington	Significant Hazard	16 ft	2004	Concrete	Minnesota