Water Supply Dams

7,228 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Upper Kinney Lake Alpine	Low Hazard	26 ft	—	Earth	California
Upper Kittanning Blair	High Hazard	45 ft	1887	Earth	Pennsylvania
Upper Kohanza Lake Dam Fairfield	High Hazard	30 ft	1866	Earth	Connecticut
Upper Lake Fork Creek WS SCS Site 8b Dam Rains	Low Hazard	21 ft	1984	Earth	Texas
Upper Lake Mary Coconino	Significant Hazard	38 ft	1941	Earth	Arizona
Upper Lake Royer Washington	Low Hazard	12 ft	1898	Earth	Maryland
Upper Long Lake Jefferson	High Hazard	46 ft	1939	Earth	Colorado
Upper Meadow Pond Dam/Dike Worcester	Low Hazard	15 ft	1961	Earth	Massachusetts
Upper Memorial Lake Dam Okaloosa	Low Hazard	30 ft	—	Earth	Florida
Upper Mint Springs Dam Albemarle	High Hazard	30 ft	—	Earth	Virginia
Upper Monarch Lake Tulare	Low Hazard	22 ft	1905	Gravity	California
Upper Naukeag Lake Dam Worcester	Significant Hazard	8 ft	1875	Earth	Massachusetts
Upper North River #76 Augusta	High Hazard	118 ft	—	Earth	Virginia
Upper (North) Wiccopee Dam Putnam	High Hazard	34 ft	1939	Concrete	New York
Upper Norton Reservoir Dam Norton	High Hazard	78 ft	—	Earth	Virginia
Upper Occoquan Dam Prince William	High Hazard	65 ft	—	Gravity	Virginia
Upper Oso Orange	High Hazard	142 ft	1979	Earth	California
Upper Otay San Diego	Low Hazard	78 ft	1901	Arch	California
Upper Ouachita Site 1 Polk	High Hazard	88 ft	1977	Earth	Arkansas
Upper Owl Creek Schuylkill	High Hazard	43 ft	1921	Earth	Pennsylvania
Upper Pasture Modoc	Low Hazard	15 ft	—	Earth	California
Upper Pecan Bayou WS SCS Site 7 Dam Callahan	Low Hazard	63 ft	1970	Earth	Texas
Upper Petit Jean Wid Site 9 Logan	High Hazard	75 ft	1978	Earth	Arkansas
Upper Reservoir Dam Franklin	Significant Hazard	17 ft	—	Earth	Massachusetts
Upper Reservoir Dam Grafton	High Hazard	30 ft	1924	Earth	New Hampshire
Upper Ridge Westmoreland	High Hazard	25 ft	1915	Earth	Pennsylvania
Upper Root Reservoir Berkshire	High Hazard	36 ft	1960	Earth	Massachusetts
Upper Sackett Reservoir Dam Berkshire	High Hazard	76 ft	1947	Concrete	Massachusetts
Upper Sandusky Reservoir #2 Wyandot	Significant Hazard	25 ft	2005	Earth	Ohio
Upper San Fernando Los Angeles	Low Hazard	82 ft	1921	Earth	California
Upper Sawmill Pond Dam Worcester	Significant Hazard	16 ft	1850	Earth	Massachusetts
Upper Settling Basin Santa Clara	Low Hazard	58 ft	—	Earth	California
Upper Shepaug Dam Litchfield	High Hazard	90 ft	1965	Earth	Connecticut
Upper Snow Dam Chelan	Low Hazard	10 ft	1939	—	Washington
Upper Somes Hancock	Low Hazard	12 ft	1900	Earth	Maine
Upper Stehly San Diego	High Hazard	29 ft	1999	Earth	California
Upper Stillwater Duchesne	High Hazard	285 ft	1986	Concrete	Utah
Upper Stone Canyon Los Angeles	Low Hazard	111 ft	1954	Earth	California
Upper Sunset Lake Alpine	Low Hazard	22 ft	1904	Earth	California
Upper Supply Dam Harrison	Low Hazard	10 ft	—	Earth	Ohio
Upper Tumbling Run Schuylkill	High Hazard	55 ft	1836	Earth	Pennsylvania
Upper Twin Lake Napa	Low Hazard	19 ft	1987	Earth	California
Upper Twin Lake Mono	High Hazard	14 ft	1905	Earth	California
Upper Urad Clear Creek	Low Hazard	85 ft	1965	Earth	Colorado
Upper Van Tassell Laramie	High Hazard	95 ft	1932	Earth	Wyoming
Upper Warwick Dam Orange	Low Hazard	40 ft	1912	Earth	New York
Upper Westborough Reservoir Dam Worcester	Significant Hazard	15 ft	1887	Earth	Massachusetts
Upper Woodsfield Reservoir Dam Monroe	Significant Hazard	31 ft	—	Earth	Ohio
Upper York Reservoir Dam York	High Hazard	20 ft	1926	—	South Carolina
Upstream Mine Creek Res. Dam Howard	Significant Hazard	47 ft	1985	Earth	Arkansas