Water Supply Dams

7,228 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Albaugh No. 1 Lassen	Low Hazard	21 ft	1953	Earth	California
Albaugh No. 2 Lassen	Low Hazard	26 ft	1966	Earth	California
Albemarle Dam Cleveland	High Hazard	—	1951	Earth	North Carolina
Albion Lake Boulder	Significant Hazard	36 ft	1913	Concrete	Colorado
A. L. Chaffin Butte	Low Hazard	65 ft	1957	Earth	California
Alcolac Lake Dam Pettis	Low Hazard	21 ft	1977	Earth	Missouri
Alcove Dam Albany	High Hazard	80 ft	1929	Earth	New York
Aleck Meadow Reservoir Dam Orange	Significant Hazard	23 ft	1956	Earth	New York
Alexander Lake Dam Van Zandt	Low Hazard	25 ft	1966	Earth	Texas
Alexander Lake No 1 Dam La Salle	Low Hazard	14 ft	1969	Earth	Texas
Alexander Lake No 2 Dam La Salle	Low Hazard	15 ft	1964	Earth	Texas
Alexander Lake No 3 Dam La Salle	Low Hazard	12 ft	1964	Earth	Texas
Alisal Creek Santa Barbara	High Hazard	93 ft	1971	Earth	California
Alitak Cannery Dam #1 Kodiak Island Borough	High Hazard	9 ft	1917	Earth	Alaska
Alitak Cannery Dam #2 Kodiak Island Borough	Low Hazard	18 ft	1964	Earth	Alaska
Alitak Cannery Dam #3 Kodiak Island Borough	Low Hazard	—	1964	Rockfill	Alaska
Alitak Cannery Dam #4 Kodiak Island Borough	Low Hazard	—	1964	Rockfill	Alaska
Allatoona Dam Bartow	High Hazard	—	1965	Gravity	Georgia
Allegheny Storage Blair	High Hazard	31 ft	1905	Earth	Pennsylvania
Allen Lake	High Hazard	33 ft	1955	Earth	California
Allen Lake Boulder	Significant Hazard	24 ft	1928	Earth	Colorado
Allen Lake Dam Otsego	Low Hazard	10 ft	1940	Earth	New York
Allen Lake Dam Nodaway	Low Hazard	25 ft	1930	Earth	Missouri
Allen Pond Dam Litchfield	Significant Hazard	15 ft	—	Concrete	Connecticut
Allerman #1 Dam Douglas	High Hazard	20 ft	—	Earth	Nevada
Alliance Sludge Lagoons Stark	Significant Hazard	12 ft	1993	Earth	Ohio
Alligator Creek Salinity Barrier Charlotte	Significant Hazard	6 ft	—	Concrete	Florida
Alligator Lake Weir Pinellas	Significant Hazard	9 ft	—	Earth	Florida
Almaden Santa Clara	High Hazard	110 ft	1936	Earth	California
Almaden Valley Santa Clara	High Hazard	38 ft	1965	Earth	California
Almond Alameda	High Hazard	30 ft	1954	Earth	California
Alpine Marin	High Hazard	143 ft	1917	Gravity	California
Alpine Main Alpine	High Hazard	49 ft	1891	Rockfill	California
Altamont Main Reservoir Dam Albany	High Hazard	37 ft	1898	Earth	New York
Altamont Reservoir Dam Effingham	Significant Hazard	42 ft	1972	Earth	Illinois
Altamont Reservoir Dam Albany	Significant Hazard	23 ft	1936	Earth	New York
Alto Correctional Institute Water Supply Lake Dam Banks	Low Hazard	39 ft	1930	Earth	Georgia
Alto Lake Dam Lincoln	High Hazard	51 ft	1965	Earth	New Mexico
Alto Pass Reservoir Dam Union	High Hazard	45 ft	1964	Earth	Illinois
Altus Reservoir Jackson	Significant Hazard	14 ft	1940	Earth	Oklahoma
Alum Creek Dam Delaware	High Hazard	—	1974	Gravity	Ohio
Alum Creek Upground Reservoir Delaware	High Hazard	24 ft	1997	Earth	Ohio
Alum Creek Upground Reservoir No. 2 Delaware	High Hazard	36 ft	2004	Earth	Ohio
Amann Reservoir Dam Morrow	Significant Hazard	32 ft	1904	Earth	Ohio
Amarillo Terminal Dam Potter	High Hazard	21 ft	1964	Earth	Texas
Amawalk Dam Westchester	High Hazard	85 ft	1897	Earth	New York
Amawalk Lake North Dam Westchester	Low Hazard	11 ft	1972	Earth	New York
American Fast Print Dam Greenville	Low Hazard	45 ft	1955	—	South Carolina
American Zinc Smelter Company Large Lake Dam Montgomery	Significant Hazard	31 ft	1916	Earth	Illinois
Amick Upground Reservoir Morrow	High Hazard	40 ft	1968	Earth	Ohio