Water Supply Dams

7,228 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Barton Siskiyou	Low Hazard	13 ft	1964	Earth	California
Barton Dam Washtenaw	High Hazard	24 ft	1913	Earth	Michigan
Barton Lake Dam Upshur	Low Hazard	16 ft	1960	Earth	Texas
Bar X Ranch Reservoir #2 Lake	High Hazard	30 ft	2003	Earth	California
Bascherini Solano	High Hazard	35 ft	1962	Earth	California
Baseline - East Boulder	High Hazard	40 ft	1905	Earth	Colorado
Baseline - Northwest Boulder	High Hazard	20 ft	1905	Earth	Colorado
Basic Creek Dam Albany	High Hazard	21 ft	1928	Earth	New York
Basin #1 Delta	Low Hazard	18 ft	1949	Earth	Colorado
Basin #2 Delta	Low Hazard	15 ft	1949	Earth	Colorado
Basin Creek Dam #1 Silver Bow	High Hazard	101 ft	1897	Concrete	Montana
Basin Creek Dam #2 Silver Bow	Significant Hazard	49 ft	1907	Earth	Montana
Basin Reservoir Sublette	Low Hazard	28 ft	—	Earth	Wyoming
Bassett Brook Reservoir Dam Berkshire	Significant Hazard	29 ft	1967	Concrete	Massachusetts
Bass Lake Siskiyou	Low Hazard	18 ft	1949	Earth	California
Bass Lake Dam McLennan	Low Hazard	23 ft	1957	Earth	Texas
Bass Lake Dam Van Zandt	Low Hazard	16 ft	1969	Earth	Texas
Batesburg Reservoir Dam Lexington	High Hazard	32 ft	1935	—	South Carolina
Baumgartner Dam Callaway	High Hazard	29 ft	1968	Earth	Missouri
Bax Dam Adams	Low Hazard	19 ft	2013	Earth	Iowa
Baxter Weld	Low Hazard	8 ft	1878	Earth	Colorado
Baxter Raw Water Basin Philadelphia	Low Hazard	21 ft	1916	Earth	Pennsylvania
Bay Lake Water Conservation Structure Hillsborough	Significant Hazard	10 ft	—	Earth	Florida
Bayley Reservoir Modoc	Low Hazard	20 ft	1954	Earth	California
Bayou Darbonne Dam and Reservoir Union	High Hazard	54 ft	1961	Earth	Louisiana
Bayou Desiard Bartholomew Dam Ouachita	Low Hazard	22 ft	1930	Earth	Louisiana
Bayou Desiard Dam Ouachita	Significant Hazard	39 ft	1933	Earth	Louisiana
Bayou Desiard Upper Milhaven Dam Ouachita	Low Hazard	19 ft	1940	Earth	Louisiana
Bayou Loco Dam Nacogdoches	High Hazard	71 ft	1977	Earth	Texas
Bayport Reservoir Dam Harris	Significant Hazard	16 ft	1975	Earth	Texas
Bayview Lake Jefferson	High Hazard	—	1910	Gravity	Alabama
B.C.Rhyne Lowndes	Significant Hazard	—	1958	Earth	Alabama
Beacon Hill Reservoir Grays Harbor	High Hazard	—	1935	Rockfill	Washington
Bean Hollow #2 San Mateo	Low Hazard	31 ft	1938	Earth	California
Bean Hollow #3 San Mateo	Low Hazard	40 ft	1939	Earth	California
Bear Brook Dam Essex	Significant Hazard	20 ft	1979	Earth	New Jersey
Bear Creek Clatsop	High Hazard	90 ft	1953	Gravity	Oregon
Bear Creek 3 Douglas	High Hazard	55 ft	1973	Earth	Oregon
Bear Creek Dam Wise	High Hazard	45 ft	—	Earth	Virginia
Bear Creek Dam Franklin	High Hazard	68 ft	1969	Earth	Alabama
Bear Creek Reservoir Lake Dam Douglas	Low Hazard	17 ft	1979	Concrete	Georgia
Beard Dam Bosque	Low Hazard	21 ft	1964	Earth	Texas
Beardsley No. 1 Niobrara	Low Hazard	27 ft	1962	Earth	Wyoming
Bear Gap No 2 Columbia	High Hazard	83 ft	1923	Earth	Pennsylvania
Bear Gap No 6 Columbia	High Hazard	70 ft	1915	Earth	Pennsylvania
Bear Gulch San Mateo	High Hazard	61 ft	1896	Earth	California
Bear Hole Reservoir Dam Hampden	Significant Hazard	34 ft	1957	Earth	Massachusetts
Bear Lake Barron	Low Hazard	22 ft	1880	Gravity	Wisconsin
Bear Mountain Dam Chelan	High Hazard	—	2003	Earth	Washington
Bear Pond Oxford	Low Hazard	15 ft	1900	Stone	Maine