Flood Risk Reduction Dams

17,618 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
West Hatchie Watershed Structure 37 Dam Tippah	Low Hazard	25 ft	1964	Earth	Mississippi
West Hatchie Watershed Structure 38 Dam Tippah	Low Hazard	27 ft	1964	Earth	Mississippi
West Hill Dam Worcester	High Hazard	48 ft	1961	Gravity	Massachusetts
Westinghouse Dam Suffolk	Significant Hazard	15 ft	—	Earth	Massachusetts
West Jordan City Salt Lake	Low Hazard	—	—	Earth	Utah
West Jordan City Salt Lake	Significant Hazard	—	—	Earth	Utah
West Kenneth Hughes	Low Hazard	35 ft	1976	Earth	Oklahoma
West Lakes Office Park Dam Polk	High Hazard	41 ft	1990	Earth	Iowa
Westlake Village Lake 3 Charles	Low Hazard	11 ft	1984	Earth	Maryland
Westlawn-Hillcrest Dam 1 Douglas	Low Hazard	19 ft	2014	Earth	Nebraska
West Logan Ridge Trail Dam Washoe	High Hazard	50 ft	2003	Earth	Nevada
West Lynden Regional Detention Facility Whatcom	Low Hazard	—	2003	Earth	Washington
West Medway Dam Norfolk	Low Hazard	11 ft	1850	Other	Massachusetts
West Ox Road Bmp Dam Fairfax	High Hazard	26 ft	—	Earth	Virginia
West Park Maricopa	High Hazard	25 ft	1974	Earth	Arizona
West Pasture Basin Pond Douglas	High Hazard	20 ft	1998	Earth	Kansas
West Point Dam Troup	High Hazard	121 ft	1974	Gravity	Georgia
West Range Wash Diversion Dike Dam Clark	Significant Hazard	15 ft	—	Earth	Nevada
West Sand Draw Cat Dam Brown	Low Hazard	34 ft	1982	Earth	Nebraska
West Seneca Industrial Park Dam Erie	Significant Hazard	6 ft	1993	Earth	New York
Westside Campbell	High Hazard	23 ft	2012	Earth	Wyoming
West Side Detention Northampton	High Hazard	9 ft	1994	Earth	Pennsylvania
West Side Detention Dike No. 2 Riverside	Low Hazard	37 ft	1968	Earth	California
West Side Flood Control Dam #5 Litchfield	High Hazard	20 ft	1970	Earth	Connecticut
Westside Subwatershed Site 2-1 Ida	Low Hazard	40 ft	1985	Earth	Iowa
Westside Subwatershed Site 2-2 Ida	Low Hazard	31 ft	1985	Earth	Iowa
Westside Subwatershed Site 2-3 Ida	Low Hazard	30 ft	1985	Earth	Iowa
Westside Subwatershed Site 3-2 Ida	Low Hazard	34 ft	2003	Earth	Iowa
West Sunnyside Watershed Site A-1 Plymouth	Low Hazard	38 ft	1969	Earth	Iowa
West Sunnyside Watershed Site C-1 Plymouth	Low Hazard	35 ft	1969	Earth	Iowa
West Sunnyside Watershed Site C-1-1 Plymouth	Low Hazard	34 ft	1959	Earth	Iowa
West Sunnyside Watershed Site C-1-2 Plymouth	Low Hazard	49 ft	1969	Earth	Iowa
West Sunnyside Watershed Site C-3 Plymouth	Low Hazard	54 ft	1973	Earth	Iowa
West Sunnyside Watershed Site C-4 Plymouth	Low Hazard	52 ft	1973	Earth	Iowa
West Sunnyside Watershed Site C-5 Plymouth	Low Hazard	29 ft	1973	Earth	Iowa
West Sunnyside Watershed Site C-6 Plymouth	Low Hazard	33 ft	1970	Earth	Iowa
West Sunnyside Watershed Site C-8 Plymouth	Low Hazard	24 ft	1970	Earth	Iowa
West Sunnyside Watershed Site E-1 Plymouth	Low Hazard	34 ft	1970	Earth	Iowa
West Thompson Dam Windham	High Hazard	70 ft	1965	Gravity	Connecticut
West Twin Lake Dam Cherry	Low Hazard	7 ft	2003	Earth	Nebraska
Westville Dam Worcester	High Hazard	72 ft	1962	Rockfill	Massachusetts
West Vine Road Dam Lancaster	Low Hazard	27 ft	1960	Earth	Nebraska
West Wash Dam Washoe	High Hazard	66 ft	1960	Earth	Nevada
West Water Creek Dam Morrill	Significant Hazard	53 ft	1976	Earth	Nebraska
West Whiteland Business Park Chester	Significant Hazard	12 ft	—	Earth	Pennsylvania
West Wolf Creek Subwatershed Site 11 Woodbury	Low Hazard	30 ft	1991	Earth	Iowa
West Wolf Creek Subwatershed Site 12l Woodbury	Low Hazard	35 ft	1990	Earth	Iowa
West Wolf Creek Subwatershed Site 13 Woodbury	Low Hazard	40 ft	1990	Earth	Iowa
West Wolf Creek Subwatershed Site 26 Woodbury	Low Hazard	33 ft	1995	Earth	Iowa
West Wolf Creek Subwatershed Site 30a Woodbury	Low Hazard	31 ft	1995	Earth	Iowa