Water Supply Dams

7,228 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Waikoloa Reservoir No. 2 Hawaii	High Hazard	31 ft	1975	Earth	Hawaii
Waikoloa Reservoir No. 3 Hawaii	High Hazard	54 ft	1985	Earth	Hawaii
Wake Forest Water Supply Dam Wake	High Hazard	—	1960	Earth	North Carolina
Walden Pond East End Dam Essex	High Hazard	8 ft	1905	Earth	Massachusetts
Walden Pond Outlet Dam Essex	High Hazard	43 ft	1890	Earth	Massachusetts
Waldron Lake Dam Pulaski	Low Hazard	—	1948	Earth	Arkansas
Walhalla Reservoir Dam Oconee	Low Hazard	18 ft	1955	—	South Carolina
Walker Lake Mono	Low Hazard	12 ft	—	Earth	California
Walker Lake Dam Newton	Significant Hazard	17 ft	1952	Earth	Texas
Walker Lake Dam Webb	Low Hazard	18 ft	1937	Earth	Texas
Walker Lake Dam Forsyth	Low Hazard	—	1952	Earth	North Carolina
Walker Lake No 1 Dam La Salle	Low Hazard	17 ft	1964	Earth	Texas
Walker Lake No 2 Dam La Salle	Low Hazard	16 ft	1969	Earth	Texas
Walker Lake No 2 Dam Madison	Low Hazard	17 ft	1963	Earth	Texas
Walker Lake No 3 Dam La Salle	Low Hazard	11 ft	1964	Earth	Texas
Walker Pond Allen	Low Hazard	10 ft	1949	Earth	Louisiana
Walker'S Dam Charles City	Low Hazard	28 ft	—	Concrete	Virginia
Wallace Hancock	High Hazard	120 ft	1980	Gravity	Georgia
Wallace Calaveras	Significant Hazard	29 ft	—	Earth	California
Wallace Dam	High Hazard	41 ft	—	Earth	West Virginia
Wallace Lake Dam Madison	Low Hazard	10 ft	1950	Earth	Texas
Wallace Pond Dam Essex	High Hazard	22 ft	1900	Earth	Massachusetts
Waller Lake Dam Walker	Low Hazard	22 ft	1962	Earth	Texas
Waller Mill Dam York	High Hazard	40 ft	—	Earth	Virginia
Wallisville Lock and Dam Chambers	Significant Hazard	16 ft	2000	Earth	Texas
Wallowa Lake Wallowa	High Hazard	39 ft	1931	Concrete	Oregon
Walls Lake Dam Harney	Low Hazard	—	2004	Gravity	Oregon
Walnut Canyon Orange	High Hazard	187 ft	1968	Earth	California
Walpole Reservoir Dam Cheshire	High Hazard	20 ft	1901	Earth	New Hampshire
Walsenburg City Lake Huerfano	High Hazard	21 ft	2019	Earth	Colorado
Walsh Lake Dam Parker	Low Hazard	18 ft	1976	Earth	Texas
Walsh Lake Dam Hood	Low Hazard	24 ft	1977	Earth	Texas
Walters City Lake Cotton	High Hazard	30 ft	1936	Earth	Oklahoma
Walton Lake Dam Orange	Significant Hazard	8 ft	1912	Earth	New York
Walton Lake Dam Jefferson	Significant Hazard	35 ft	1900	Earth	Iowa
Wampler-Werth Crook	Significant Hazard	20 ft	1983	Earth	Oregon
Wangum Lake Dam Litchfield	Significant Hazard	10 ft	1890	Earth	Connecticut
Wapanucka Johnston	Low Hazard	20 ft	1950	Earth	Oklahoma
Ward Cove Cannery Dam Ketchikan Gateway Borough	Low Hazard	25 ft	1932	Timber Crib	Alaska
Ward Lake Lassen	Low Hazard	23 ft	1889	Earth	California
Ward Lake Dam Manatee	Low Hazard	12 ft	1973	Earth	Florida
Ward Lake Dam-Sec 29 Bates	Low Hazard	15 ft	1972	Earth	Missouri
Ware River Diversion Dam Worcester	Significant Hazard	38 ft	1910	Earth	Massachusetts
War Memorial Park Dam Plymouth	Low Hazard	7 ft	1900	Masonry	Massachusetts
Warm Springs Box Elder	Low Hazard	—	1880	Earth	Utah
Warm Springs Dam Sonoma	High Hazard	319 ft	1983	Earth	California
Warner Gap Hollow Dam Washington	High Hazard	65 ft	1902	Earth	Maryland
Warren H. Brock Reservoir Dikes Imperial	High Hazard	14 ft	2010	Earth	California
Warren H Ohl Clinton	High Hazard	59 ft	1965	Earth	Pennsylvania
Warren Lake No 1 Dam Erath	Low Hazard	18 ft	1945	Earth	Texas