Flood Risk Reduction Dams

17,618 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Wakeman Douglas	Low Hazard	10 ft	1959	Earth	Colorado
Walden Dam Nuckolls	Low Hazard	28 ft	1939	Earth	Nebraska
Waldens Pond Dam Albany	Low Hazard	26 ft	1991	Earth	New York
Walden'S Pond Dam Hanover	Significant Hazard	15 ft	—	Earth	Virginia
Walden Woods Allegheny	High Hazard	17 ft	2000	Earth	Pennsylvania
Walker Niobrara	Low Hazard	21 ft	1972	Earth	Wyoming
Walker #2 (Dawson) Dawson	Low Hazard	11 ft	1966	Earth	Montana
Wallace Don Hughes	Low Hazard	20 ft	1976	Earth	Oklahoma
Wallace Lake Dam Carter	Low Hazard	25 ft	1976	Earth	Missouri
Wallace Lake Dam Caddo	High Hazard	—	1946	Earth	Louisiana
Wallace Pond Dam Worcester	Low Hazard	15 ft	1950	Earth	Massachusetts
Walla Dam Saunders	Low Hazard	32 ft	1967	Earth	Nebraska
Walling Subwatershed Sta 18+02 #5 Woodbury	Low Hazard	35 ft	1953	Earth	Iowa
Walling Subwatershed Sta 18+50 #1j Woodbury	Low Hazard	32 ft	1953	Earth	Iowa
Walling Subwatershed Sta 19+11 #1k Woodbury	Low Hazard	28 ft	1953	Earth	Iowa
Walling Subwatershed Sta 19+70 #4 Woodbury	Low Hazard	31 ft	1953	Earth	Iowa
Walling Subwatershed Sta 20+86 #1b Woodbury	Low Hazard	35 ft	1953	Earth	Iowa
Walling Subwatershed Sta 23+00 #1h Woodbury	Low Hazard	32 ft	1953	Earth	Iowa
Walling Subwatershed Sta 31+73 #1 Woodbury	Low Hazard	28 ft	1953	Earth	Iowa
Walling Subwatershed Sta 38+00 #1b Woodbury	Low Hazard	32 ft	1953	Earth	Iowa
Walling Subwatershed Sta 42+05 #4 Woodbury	Low Hazard	48 ft	1953	Earth	Iowa
Walling Subwatershed Sta 55+40 #1 Woodbury	Low Hazard	50 ft	1953	Earth	Iowa
Walling Subwatershed Sta 57+84 #1b Woodbury	Low Hazard	51 ft	1953	Earth	Iowa
Walling Subwatershed Sta 77+50 #1 Woodbury	Low Hazard	48 ft	1953	Earth	Iowa
Walling Subwatershed Sta 78+96 #1b Woodbury	Low Hazard	32 ft	1953	Earth	Iowa
Walling Subwatershed Sta 99+70 #1 Woodbury	Low Hazard	40 ft	1953	Earth	Iowa
Walmart Detention Pond A Dam Schoharie	Low Hazard	31 ft	—	Earth	New York
Walmart Detention Pond D Dam Oneida	Low Hazard	15 ft	1995	Earth	New York
Walmart Store No 400 Expansion Pond Dam Montgomery	Significant Hazard	15 ft	1995	Concrete	Texas
Walmart Swm Pond Dam(S) Louisa	Unknown	23 ft	—	Earth	Virginia
Walnut Branch North Detention Dam Guadalupe	High Hazard	12 ft	2010	Earth	Texas
Walnut Branch Road Detention Pond Dam Fairfax	Unknown	22 ft	—	Earth	Virginia
Walnut Creek 1 Saline	Significant Hazard	25 ft	1979	Earth	Nebraska
Walnut Creek 2 Saline	Significant Hazard	29 ft	1979	Earth	Nebraska
Walnut Creek 5 Lancaster	Significant Hazard	26 ft	1980	Earth	Nebraska
Walnut Grove Redwood	Significant Hazard	54 ft	1979	Earth	Minnesota
Walnut Hill Lake Dam Phelps	High Hazard	20 ft	1973	Earth	Missouri
Walter F. George Lock and Dam Clay	High Hazard	106 ft	1962	Concrete	Alabama
Walters Big Horn	Low Hazard	25 ft	1978	Earth	Wyoming
Walters Creek Watershed Site 12-1 Adams	Low Hazard	34 ft	1968	Earth	Iowa
Walters Creek Watershed Site 12-2 Adams	Low Hazard	32 ft	1968	Earth	Iowa
Walters Creek Watershed Site 13-1 Adams	Low Hazard	33 ft	1967	Earth	Iowa
Walters Creek Watershed Site 14-1 Adams	Low Hazard	31 ft	1969	Earth	Iowa
Walters Creek Watershed Site 15-1 Adams	Low Hazard	31 ft	1972	Earth	Iowa
Walters Creek Watershed Site 15-3 Adams	Low Hazard	35 ft	1972	Earth	Iowa
Walters Creek Watershed Site 16-1 Adams	Low Hazard	29 ft	1968	Earth	Iowa
Walters Creek Watershed Site 18-2 Adams	Low Hazard	46 ft	1972	Earth	Iowa
Walters Creek Watershed Site 22-1 Adams	Low Hazard	29 ft	1968	Earth	Iowa
Walters Creek Watershed Site 23-3 Adams	Low Hazard	32 ft	1972	Earth	Iowa
Walters Creek Watershed Site 24-1 Adams	Low Hazard	29 ft	1968	Earth	Iowa