Water Supply Dams

7,228 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Cobbs Creek Regional Water Supply Reservoir Dam Perimeter Dam (Dam C) Cumberland	High Hazard	—	—	—	Virginia
Cobbs Creek Regional Water Supply Reservoir Saddle Dam (Dam B) Cumberland	High Hazard	—	—	—	Virginia
Cobbs Hill Reservoir Dam Monroe	High Hazard	25 ft	1908	Other	New York
Cobleskill Lower Res Dam Schoharie	High Hazard	20 ft	1886	Earth	New York
Cobleskill Upper Reservoir Dam Schoharie	High Hazard	30 ft	1967	Earth	New York
Cobun Creek #1 Dam Monongalia	Significant Hazard	57 ft	1956	Rockfill	West Virginia
Cochnewagon Kennebec	Significant Hazard	9 ft	1900	Concrete	Maine
Codding Reservoir Mendocino	Low Hazard	36 ft	—	Earth	California
Cody Municipal Park	Significant Hazard	40 ft	1948	Earth	Wyoming
Coen C-3 Sonoma	Low Hazard	97 ft	1982	Earth	California
Coffeen East Fork Shoal Creek Gate Dam Montgomery	Low Hazard	12 ft	2010	Other	Illinois
Cogdell Ranch Lake Dam Kent	Low Hazard	25 ft	1960	Earth	Texas
Coggin Lake Dam Brown	Low Hazard	27 ft	1963	Earth	Texas
Cogswell Los Angeles	High Hazard	266 ft	1935	Rockfill	California
Cohas Avenue Dam Hillsborough	Low Hazard	20 ft	1874	Earth	New Hampshire
Cohasse Brook Reservoir Dam Worcester	High Hazard	60 ft	1967	Earth	Massachusetts
Cohoes Reservoir #3 Dam Albany	High Hazard	20 ft	1885	Earth	New York
Coit Santa Clara	Low Hazard	54 ft	1956	Earth	California
Coker Dam Coleman	Low Hazard	27 ft	1947	Earth	Texas
Cold Brook Reservoir Dam Hartford	Significant Hazard	13 ft	1919	Earth	Connecticut
Cold Brook Reservoir Dam Fulton	Significant Hazard	18 ft	1878	Earth	New York
Cold Creek Mobile	Low Hazard	—	1968	Earth	Alabama
Cold Spring Dam (Lower) Putnam	High Hazard	25 ft	1942	Stone	New York
Cold Spring Dam (Upper) Putnam	High Hazard	23 ft	1934	Stone	New York
Coldwater Cattle Lake Dam Sherman	Low Hazard	12 ft	1940	Earth	Texas
Colebrook River Dam Litchfield	High Hazard	223 ft	1969	Gravity	Connecticut
Coleman Dam Coleman	High Hazard	90 ft	1966	Earth	Texas
Coles Run Dam Augusta	High Hazard	65 ft	—	Earth	Virginia
Colesville Reservoir Dam Sussex	Significant Hazard	15 ft	—	Earth	New Jersey
College Corner Upground Reservoir No. 2 Preble	Significant Hazard	14 ft	1965	Earth	Ohio
College Hill Reservoir Grays Harbor	High Hazard	—	1899	Other	Washington
College Lake Dam Haskell	Low Hazard	28 ft	—	Earth	Texas
Collier Lake Dam Erath	Low Hazard	47 ft	1960	Earth	Texas
Collins Lake Dam Mills	Low Hazard	12 ft	1965	Earth	Texas
Collinsville Rogers	Low Hazard	22 ft	1930	Earth	Oklahoma
Colonie Dam Saratoga	High Hazard	57 ft	1954	Earth	New York
Colorado Beef Prowers	Low Hazard	17 ft	2012	Earth	Colorado
Columbia Maury	Significant Hazard	—	1920	Concrete	Tennessee
Columbia Corporation Dam Columbia	Low Hazard	15 ft	1940	Concrete	New York
Columbia Creek Dam Wicomico	Low Hazard	14 ft	1987	Gravity	Maryland
Columbia Diversion Dam Richland	Significant Hazard	14 ft	1882	Timber Crib	South Carolina
Columbia Lake Dam Summit	Significant Hazard	17 ft	1914	Concrete	Ohio
Columbia Lakes South Lake Dam Monroe	High Hazard	25 ft	1990	Earth	Illinois
Columbia Lock and Dam Caldwell	Significant Hazard	—	1970	Gravity	Louisiana
Columbia Mill Dam Berkshire	Significant Hazard	25 ft	1901	Concrete	Massachusetts
Columbine Delta	Low Hazard	26 ft	1950	Earth	Colorado
Colver Cambria	High Hazard	52 ft	1994	Earth	Pennsylvania
Colwell Const. Co. Wellborn Mtn. Lake Dam Dam Union	Low Hazard	60 ft	1973	Earth	Georgia
Comal River WS SCS Site 3 Dam Comal	High Hazard	58 ft	1974	Earth	Texas
Comal River WS SCS Site 4 Dam Comal	High Hazard	73 ft	1965	Earth	Texas