Water Supply Dams

7,228 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Sherburne Upper Reservoir Dam Chenango	Low Hazard	35 ft	1917	Earth	New York
Sheriff Rio Blanco	High Hazard	47 ft	1955	Earth	Colorado
Sherman Island Warren	High Hazard	80 ft	1923	Concrete	New York
Sheyenne River Diversion Dam Cass	Low Hazard	10 ft	1972	Other	North Dakota
Shields Lake Dam Livingston	Low Hazard	28 ft	1955	Earth	Missouri
Shiff Lake Dam Denton	Low Hazard	18 ft	1970	Earth	Texas
Shiloh Ranch Sonoma	High Hazard	61 ft	1991	Earth	California
Shimek Forest Dam 4 Lee	Low Hazard	33 ft	1978	Earth	Iowa
Shinn Alameda	Significant Hazard	45 ft	1987	Earth	California
Ship Creek Dam Municipality of Anchorage	High Hazard	—	1954	Gravity	Alaska
Shipman Reservoir Dam Macoupin	Significant Hazard	36 ft	1967	Earth	Illinois
Shirfs Run Cambria	Significant Hazard	15 ft	1925	Earth	Pennsylvania
Shoreline Lake Santa Clara	Low Hazard	18 ft	—	Earth	California
Shotter Creek Upper Dam Hoonah-Angoon Census Area	Significant Hazard	—	1968	Earth	Alaska
S. Howell Gardner Reservoir Dam Henry	High Hazard	34 ft	1983	Earth	Georgia
Shropshire Lake Dam McCulloch	Low Hazard	24 ft	1921	Earth	Texas
Shugru Lassen	Low Hazard	20 ft	—	Earth	California
Shuttle Meadow Reservoir Dam Hartford	High Hazard	35 ft	1894	Earth	Connecticut
Sibley Lake Dam Natchitoches	High Hazard	36 ft	1962	Earth	Louisiana
Sibley Orchards Lake Dam Jackson	High Hazard	25 ft	1960	Earth	Missouri
Sidney Reservoir #5 Dam Delaware	Significant Hazard	77 ft	1936	Earth	New York
Siena Broomfield	High Hazard	40 ft	2004	Earth	Colorado
Sierra Madre Los Angeles	High Hazard	69 ft	1928	Arch	California
Sierra Vista Merced	Low Hazard	12 ft	1872	Earth	California
Sievert Lake Dam Lee	Low Hazard	18 ft	1958	Earth	Texas
Signal Mountain Cement Hamilton	Low Hazard	—	1977	Earth	Tennessee
Siler City Water Supply Dam Chatham	High Hazard	—	1953	Earth	North Carolina
Silt / Tails San Bernardino	Low Hazard	10 ft	—	—	California
Silva Flat Lassen	Significant Hazard	11 ft	1926	Earth	California
Silver Bit Lake Dam Liberty	Low Hazard	25 ft	1961	Earth	Texas
Silver Creek Marion	High Hazard	65 ft	1975	Earth	Oregon
Silver Creek Reservoir Schuylkill	High Hazard	38 ft	1850	Earth	Pennsylvania
Silver Creek Reservoir Dam Chautauqua	Significant Hazard	35 ft	1925	Earth	New York
Silver Lake Plumas	High Hazard	21 ft	1906	Earth	California
Silver Lake Franklin	Significant Hazard	35 ft	1912	Earth	Vermont
Silver Lake Los Angeles	High Hazard	43 ft	1976	Earth	California
Silver Lake Hancock	High Hazard	29 ft	1930	Earth	Maine
Silver Lake Boulder	High Hazard	70 ft	1887	Earth	Colorado
Silver Lake Dam Plymouth	Low Hazard	8 ft	1908	Concrete	Massachusetts
Silver Lake Dam Wyoming	Significant Hazard	15 ft	1982	Other	New York
Silver Lake Dam Madison	Significant Hazard	29 ft	1962	Earth	Illinois
Silver Lake Dam Sullivan	Significant Hazard	14 ft	1850	Stone	New York
Silverlake Enterprizes Lake Dam Cass	High Hazard	30 ft	1962	Earth	Missouri
Silver Lake North Dike Franklin	Low Hazard	10 ft	1895	Earth	Vermont
Silver Lake South Dike Franklin	Low Hazard	22 ft	1873	Earth	Vermont
Silver Stream Reservoir Dam Orange	High Hazard	36 ft	1923	Earth	New York
Simonds Pond Dam Worcester	Significant Hazard	32 ft	2006	Masonry	Massachusetts
Simon Freese Dam Coleman	High Hazard	149 ft	1989	Concrete	Texas
Simonton Dam Lincoln	Low Hazard	40 ft	2013	Earth	Louisiana
Simpson Pond Dam Randolph	Low Hazard	26 ft	1973	Earth	Illinois