Water Supply Dams

7,228 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Warren Lake No 2 Dam Erath	Low Hazard	19 ft	1955	Earth	Texas
Warren Mill Dam Hunterdon	High Hazard	38 ft	1916	Earth	New Jersey
Warren Reservoir Lower Bristol	Low Hazard	8 ft	1883	Earth	Rhode Island
Warren Reservoir Upper Bristol	Significant Hazard	14 ft	1961	Earth	Rhode Island
Warrenton Dam Fauquier	High Hazard	31 ft	—	Buttress	Virginia
Warren Upper Reservoir Dam Bristol	Significant Hazard	19 ft	1911	Rockfill	Massachusetts
Wasel Reservoir Dam Hartford	High Hazard	80 ft	1966	Earth	Connecticut
Washakie Fremont	High Hazard	43 ft	1935	Earth	Wyoming
Washakie Dike No. 1 Fremont	High Hazard	26 ft	1935	Earth	Wyoming
Washakie Dike No. 2 Fremont	High Hazard	23 ft	1935	Earth	Wyoming
Washakie Dike No. 3 Fremont	High Hazard	30 ft	1935	Earth	Wyoming
Washington Court House Ug No. 1 Dam Fayette	High Hazard	21 ft	1956	Earth	Ohio
Washington Court House Ug No. 2 Dam Fayette	Significant Hazard	19 ft	2001	Earth	Ohio
Washington Lake Dam Orange	Significant Hazard	30 ft	1909	Earth	New York
Wassookeag Lake Penobscot	High Hazard	14 ft	1914	Rockfill	Maine
Waste House No 1 Schuylkill	High Hazard	57 ft	1884	Earth	Pennsylvania
Waste House No 3 Schuylkill	High Hazard	41 ft	1902	Earth	Pennsylvania
Waste Pond San Diego	Significant Hazard	20 ft	—	Earth	California
Wastewater Storage Placer	Low Hazard	75 ft	1978	Earth	California
Watauga Dam Carter	High Hazard	332 ft	1948	Rockfill	Tennessee
Wateree Kershaw	High Hazard	92 ft	1919	Gravity	South Carolina
Waterhouse Pond Dam Middlesex	Significant Hazard	4 ft	1902	Earth	Connecticut
Waterloo New Reservoir Dam Monroe	Significant Hazard	42 ft	1961	Earth	Illinois
Waterloo Reservoir 1 Dam Monroe	Significant Hazard	31 ft	1924	Earth	Illinois
Waterloo Reservoir 2 Dam Monroe	Significant Hazard	19 ft	1950	Earth	Illinois
Water Storage Niobrara	Low Hazard	30 ft	1939	Earth	Wyoming
Water Supply Lake Linn	Significant Hazard	32 ft	—	Earth	Kansas
Watertown Dosing Station Dam Jefferson	Low Hazard	10 ft	1917	Concrete	New York
Water Treatment Plant Cumberland	Low Hazard	19 ft	1976	Rockfill	North Carolina
Waterville Reservoir Dam #2 Oneida	Significant Hazard	10 ft	1917	Masonry	New York
Waterville Upper Storage Reservoir Dam Oneida	Significant Hazard	41 ft	1953	Earth	New York
Watervliet Balancing Reservoir Dam Albany	Significant Hazard	20 ft	1915	Earth	New York
Water Works Lake Dam Randolph	High Hazard	30 ft	1870	Earth	Missouri
Watkins Lake No 1 Dam Zavala	Low Hazard	16 ft	1958	Earth	Texas
Watkins Lake No 2 Dam Zavala	Low Hazard	18 ft	1958	Earth	Texas
Watres Lackawanna	High Hazard	135 ft	1925	Earth	Pennsylvania
Watson, Harold E, Reservoir Newport	High Hazard	34 ft	1960	Gravity	Rhode Island
Watson Lake Dam Lee	High Hazard	—	1956	Earth	North Carolina
Watson Lake Dam Logan	Low Hazard	—	1954	Earth	Arkansas
Watts Family Lake #1 Lincoln	Low Hazard	16 ft	2013	Earth	Louisiana
Watts Family Lake #2 Lincoln	Low Hazard	21 ft	2014	Earth	Louisiana
Waurika Dam Jefferson	High Hazard	106 ft	1977	Earth	Oklahoma
Wauseon Upground Reservoir No. 1 Fulton	Significant Hazard	29 ft	1921	Earth	Ohio
Wauseon Upground Reservoir No. 2 Fulton	High Hazard	26 ft	1934	Earth	Ohio
Waverly City Lake Dam Morgan	Low Hazard	35 ft	1939	Earth	Illinois
Waverly Lower Reservoir Dam Tioga	High Hazard	54 ft	1880	Earth	New York
Waxhoma Lake Osage	High Hazard	50 ft	1955	Earth	Oklahoma
Wayne City Perched Reservoir Dam Wayne	Low Hazard	22 ft	1983	Earth	Illinois
Wayne Galloway Dam Oconee	Low Hazard	30 ft	1996	—	South Carolina
Wayne Smith Dam Blanco	Low Hazard	14 ft	1966	Buttress	Texas