Water Supply Dams

7,228 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Belknap Creek No. 1 Park	Low Hazard	20 ft	1917	Earth	Wyoming
Belknap Creek No. 4 Park	Low Hazard	23 ft	1917	Earth	Wyoming
Bell Albany	Low Hazard	38 ft	1957	Earth	Wyoming
Bellamy Reservoir Dam Strafford	High Hazard	35 ft	1962	Concrete	New Hampshire
Bell Canyon Napa	High Hazard	95 ft	1959	Earth	California
Bellett Nevada	Low Hazard	54 ft	1950	Earth	California
Bellevue Lake Dam New Castle	High Hazard	15 ft	1933	Gravity	Delaware
Bellevue Upground Reservoir No. 1 Huron	High Hazard	20 ft	1874	Earth	Ohio
Bellevue Upground Reservoir No. 3 Huron	High Hazard	25 ft	1900	Earth	Ohio
Bellevue Upground Reservoir No. 4 Huron	High Hazard	18 ft	1919	Earth	Ohio
Bellevue Upground Reservoir No. 5 Huron	Significant Hazard	28 ft	1946	Earth	Ohio
Bell Lake De Soto	Low Hazard	13 ft	2020	Earth	Louisiana
Bell Lake No. 2 De Soto	Low Hazard	14 ft	2011	Earth	Louisiana
Bellman Br. Bleachery Dam Bergen	Low Hazard	9 ft	—	Earth	New Jersey
Bell Marsh York	Significant Hazard	70 ft	1987	Earth	Maine
Bell Street Dam Tom Green	Low Hazard	14 ft	1955	Gravity	Texas
Bellwood Blair	High Hazard	61 ft	1902	Earth	Pennsylvania
Bellwood Lake Dam Smith	High Hazard	28 ft	1894	Earth	Texas
Belmont Lackawanna	High Hazard	33 ft	1903	Earth	Pennsylvania
Belmont Hills Country Club Lake Dam Belmont	High Hazard	21 ft	1940	Earth	Ohio
Belmont Lake Wayne	High Hazard	28 ft	1830	Earth	Pennsylvania
Belmont Raw Water Basin Philadelphia	High Hazard	30 ft	1901	Earth	Pennsylvania
Belmont Reservoir Dam Berkshire	High Hazard	29 ft	1889	Earth	Massachusetts
Belton Dam Bell	High Hazard	192 ft	1954	Earth	Texas
Beltzville Dam Carbon	High Hazard	—	1969	Rockfill	Pennsylvania
Benbrook Dam Tarrant	High Hazard	130 ft	1951	Earth	Texas
Benchmark Lake Eagle	High Hazard	19 ft	1977	Earth	Colorado
Bendale Dam Lewis	Low Hazard	14 ft	1924	Concrete	West Virginia
Ben Ficklin Dam Tom Green	High Hazard	24 ft	1918	Gravity	Texas
Benham Lake No 1 Dam Erath	Low Hazard	24 ft	1976	Earth	Texas
Benham Lake No 2 Dam Erath	Low Hazard	21 ft	1976	Earth	Texas
Bennett Lake Dam Camp	Low Hazard	20 ft	1960	Earth	Texas
Bennetts Branch Slurry Dam Whitley	High Hazard	340 ft	—	Earth	Kentucky
Bens Branch Dam Wise	High Hazard	55 ft	—	Gravity	Virginia
Ben Spear Dam Lowndes	Low Hazard	—	1952	Earth	Alabama
Bentley Dam Ringgold	Low Hazard	26 ft	2013	Earth	Iowa
Bents Pond Dam Worcester	Low Hazard	13 ft	1900	Other	Massachusetts
Ben Webber Lake Dam Gaston	High Hazard	—	1982	Earth	North Carolina
Berea Reservoir Madison	Low Hazard	60 ft	1955	Earth	Kentucky
Berea Reservoir Dam Madison	Low Hazard	36 ft	1940	Earth	Kentucky
Berlin Dam Mahoning	High Hazard	—	1943	Gravity	Ohio
Berlin Pond Washington	Low Hazard	14 ft	1920	Concrete	Vermont
Bernadotte Dam Fulton	Low Hazard	12 ft	1900	Concrete	Illinois
Bernardo Reservoir San Diego	High Hazard	54 ft	1964	Earth	California
Berrenda Mesa Kern	Significant Hazard	22 ft	1967	Earth	California
Berry 27 Frac Pond Caddo	Low Hazard	19 ft	2012	Earth	Louisiana
Berry Creek Douglas	High Hazard	140 ft	1980	Earth	Oregon
Berry Pond Dam Merrimack	High Hazard	18 ft	1884	Earth	New Hampshire
Berthoud Larimer	Significant Hazard	18 ft	1962	Earth	Colorado
Beshear Lake Dam Caldwell	Significant Hazard	38 ft	1962	Earth	Kentucky