Water Supply Dams

7,228 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Comal River WS SCS Site 5 Dam Comal	High Hazard	31 ft	1957	Earth	Texas
Comanche Larimer	High Hazard	46 ft	1966	Earth	Colorado
Comanche Pueblo	High Hazard	20 ft	1972	Earth	Colorado
Comanche Stephens	High Hazard	50 ft	1960	Earth	Oklahoma
Cometa Lake Dam Zavala	Low Hazard	10 ft	1940	Earth	Texas
Comfort Lake Susquehanna	High Hazard	13 ft	1916	Earth	Pennsylvania
Compensating Reservoir Dam Litchfield	High Hazard	75 ft	1920	Earth	Connecticut
Conagra Aerated and Settling Ponds Stanislaus	High Hazard	15 ft	—	Earth	California
Concho County Wcid 1 Dam Concho	Low Hazard	10 ft	1909	Gravity	Texas
Concord Mines Lake Jefferson	Low Hazard	—	1949	Earth	Alabama
Concow Butte	High Hazard	94 ft	1925	Arch	California
Conklingville Saratoga	High Hazard	100 ft	1930	Earth	New York
Connally Lake No 2 Dam Wilson	Low Hazard	20 ft	1964	Earth	Texas
Conn Creek Napa	High Hazard	125 ft	1946	Earth	California
Conoco Stephens	Low Hazard	22 ft	1960	Earth	Oklahoma
Conowingo Cecil	High Hazard	94 ft	1928	Concrete	Maryland
Conroe Dam Montgomery	High Hazard	82 ft	1973	Earth	Texas
Continental Grain Co. #2 Dam Gentry	Significant Hazard	26 ft	—	Earth	Missouri
Contra Loma Contra Costa	High Hazard	82 ft	1967	Earth	California
Cook Lake Dam Leon	Low Hazard	15 ft	1964	Earth	Texas
Cook Lake Dam Walker	Low Hazard	16 ft	1960	Earth	Texas
Cook No. 2 Sonoma	High Hazard	35 ft	1961	Earth	California
Cook Reservoir Graham	High Hazard	18 ft	1940	Earth	Arizona
Cooks Brook Dam York	Low Hazard	15 ft	1900	Concrete	Maine
Coolemee Rowan	Low Hazard	14 ft	1902	Masonry	North Carolina
Cooley Hill Reservoir Dam Worcester	Significant Hazard	18 ft	1887	Earth	Massachusetts
Coomer Lake Providence	Significant Hazard	9 ft	1885	Rockfill	Rhode Island
Coon Camp Lassen	Low Hazard	23 ft	1900	Earth	California
Coon Dam 1 Houston	Low Hazard	14 ft	1950	Earth	Texas
Coon Dam 2 Houston	Low Hazard	15 ft	1970	Earth	Texas
Cooper Creek (Sutherlin) Douglas	High Hazard	84 ft	1971	Earth	Oregon
Cooper Dam Delta	High Hazard	79 ft	1991	Earth	Texas
Cooper Dev - Pinopolis Dam Berkeley	High Hazard	75 ft	1942	Earth	South Carolina
Cooper Lake Dam Fisher	Low Hazard	30 ft	1964	Earth	Texas
Cooper Lake Dam Eastland	Low Hazard	13 ft	1925	Earth	Texas
Cooper Lake Dam and West Dike Ulster	High Hazard	40 ft	1800	Earth	New York
Coos Ctry Club 15th Hole Dam Coos	Low Hazard	25 ft	—	—	Oregon
Copeland Adams	Low Hazard	12 ft	1898	Earth	Colorado
Copeland Boulder	Low Hazard	24 ft	1934	Earth	Colorado
Copeland Pond Dam Washington	Low Hazard	7 ft	1910	Concrete	New York
Copicut Reservoir Dam Bristol	High Hazard	40 ft	1971	Earth	Massachusetts
Copperas Fork Slurry Dam McCreary	Low Hazard	20 ft	—	Earth	Kentucky
Copper Basin San Bernardino	High Hazard	184 ft	1938	Arch	California
Copper Cove Calaveras	Low Hazard	42 ft	1993	Earth	California
Copperopolis Calaveras	High Hazard	33 ft	1905	Earth	California
Coquat Lake Dam La Salle	Low Hazard	13 ft	1952	Earth	Texas
Corbett Lake Dam #1 Nash	Significant Hazard	—	1950	Earth	North Carolina
Corbin Reservoir Dam Laurel	Significant Hazard	50 ft	1950	Gravity	Kentucky
Cordell Hull Lock and Dam Smith	High Hazard	—	1973	Gravity	Tennessee
Cordell Reservoir Washita	Low Hazard	28 ft	1955	Earth	Oklahoma