Water Supply Dams

7,228 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Big Foot Dam Harney	Low Hazard	—	1953	Gravity	Oregon
Big Four Ranch Kern	Significant Hazard	38 ft	1970	Earth	California
Big Hill Dam Labette	High Hazard	83 ft	1981	Earth	Kansas
Big Horn El Paso	Low Hazard	21 ft	1896	Earth	Colorado
Big Johnson Modoc	Low Hazard	18 ft	1959	Earth	California
Big Kitoi Kodiak Island Borough	Low Hazard	—	1962	Buttress	Alaska
Big Lagoon Humboldt	Low Hazard	16 ft	1947	Earth	California
Big Lake Missoula	Significant Hazard	30 ft	1915	Earth	Montana
Big Lake Dam Atascosa	Low Hazard	22 ft	1968	Earth	Texas
Big Lake Dam Tyler	Significant Hazard	21 ft	1949	Earth	Texas
Big Lake Los Manzanos Dam Kerr	Significant Hazard	13 ft	1968	Earth	Texas
Bigler Millpond Dam York	Unknown	15 ft	—	Earth	Virginia
Big Pine Creek Inyo	High Hazard	14 ft	—	Rockfill	California
Big Pond Stanly	Significant Hazard	30 ft	—	Earth	North Carolina
Big Rock Ranch Marin	High Hazard	45 ft	2002	Earth	California
Big Sage Modoc	High Hazard	49 ft	1921	Earth	California
Big Santa Anita Los Angeles	High Hazard	225 ft	1927	Arch	California
Big Spring Westmoreland	High Hazard	43 ft	1907	Earth	Pennsylvania
Big Tooth El Paso	High Hazard	90 ft	1927	Rockfill	Colorado
Big Tujunga No. 1 Los Angeles	High Hazard	220 ft	1931	Arch	California
Bijou #2 Dam #1 Morgan	Significant Hazard	22 ft	1898	Earth	Colorado
Bijou #2 Dam #2 Morgan	Significant Hazard	22 ft	1898	Earth	Colorado
Bijou #2 Dam #3 Morgan	Significant Hazard	22 ft	1898	Earth	Colorado
Bijou #2 Dam #4 Morgan	Significant Hazard	22 ft	1898	Earth	Colorado
Bilby Wallace Ranch Lake Dam Kent	Low Hazard	30 ft	1960	Earth	Texas
Billings Avery Dam New London	Significant Hazard	19 ft	1968	Earth	Connecticut
Billy's Branch White	High Hazard	—	1973	Earth	Tennessee
Biltmore Lake Dam Buncombe	High Hazard	—	1933	Earth	North Carolina
Binder Lake Dam Adams	Significant Hazard	35 ft	1942	Earth	Iowa
Birch Dam Osage	High Hazard	97 ft	1977	Earth	Oklahoma
Birch Pond Dam Essex	High Hazard	25 ft	1873	Earth	Massachusetts
Birmingham Water Service Lake Jefferson	High Hazard	—	1948	Earth	Alabama
Birmingham Water Service Lake 2 Jefferson	High Hazard	41 ft	—	—	Alabama
Biron Wood	High Hazard	24 ft	1937	Gravity	Wisconsin
Bischoff Reservoir Dam Ripley	High Hazard	38 ft	1959	—	Indiana
Bison Park Teller	Significant Hazard	27 ft	1902	Earth	Colorado
Bistone Dam Limestone	High Hazard	50 ft	1961	Earth	Texas
Bitter Lake Reservoir King	High Hazard	—	1958	Earth	Washington
Bixhoma Lake Wagoner	Significant Hazard	95 ft	1965	Earth	Oklahoma
B. J. Robinson Napa	High Hazard	46 ft	1957	Earth	California
Black Beauty Mineral	High Hazard	52 ft	1952	Earth	Nevada
Blackbird Lake Dam Freestone	Low Hazard	25 ft	1970	Earth	Texas
Blackburn Crossing Dam	High Hazard	75 ft	1962	Earth	Texas
Blackburn Pond (Mononame 209) Saline	High Hazard	28 ft	1966	Earth	Missouri
Black Creek Impoundment Nelson	Low Hazard	24 ft	—	Earth	Virginia
Black Dog Lake Dakota	Low Hazard	20 ft	1953	Gravity	Minnesota
Black Dog Lake West Dakota	Low Hazard	20 ft	1958	Concrete	Minnesota
Blackfoot Caribou	High Hazard	35 ft	1911	Earth	Idaho
Black Hawk Madera	Significant Hazard	45 ft	1971	Earth	California
Black Lake #1 Eagle	High Hazard	31 ft	1939	Earth	Colorado