Water Supply Dams

7,228 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Dunsmuir Reservoir Alameda	High Hazard	43 ft	1968	Other	California
Durango #1 La Plata	Low Hazard	16 ft	1899	Rockfill	Colorado
Durango Terminal La Plata	High Hazard	35 ft	1954	Earth	Colorado
Durant Lake Bryan	High Hazard	45 ft	1994	Earth	Oklahoma
Dure Lake Dam Gentry	Low Hazard	25 ft	1976	Earth	Missouri
Durepo Brook Aroostook	High Hazard	60 ft	1974	Earth	Maine
Dustin Hughes	Low Hazard	18 ft	1932	Earth	Oklahoma
Dutcher Creek Sonoma	High Hazard	43 ft	1992	Earth	California
Dutch Flat Afterbay Nevada	Low Hazard	165 ft	1965	Rockfill	California
Dutch Flat Forebay Nevada	Low Hazard	77 ft	1966	Earth	California
Dutch Fork Washington	High Hazard	42 ft	1959	Earth	Pennsylvania
Duval County Ranch Conchola Tank Dam Duval	Low Hazard	12 ft	1969	Earth	Texas
Duval County Ranch Lake No 2 Dam Duval	Low Hazard	10 ft	1969	Earth	Texas
Duvall Napa	High Hazard	30 ft	1940	Earth	California
Dwiggins Lake Dam Clark	Low Hazard	—	1948	Earth	Arkansas
Dwight Hammond Siskiyou	Low Hazard	25 ft	1959	Earth	California
Dworshak Dam Clearwater	High Hazard	—	1973	Concrete	Idaho
Dw Smart Lake Dam Van Zandt	Low Hazard	20 ft	1968	Earth	Texas
Dyer Alameda	High Hazard	30 ft	2011	Earth	California
Dyer Lake Dam Greene	Low Hazard	20 ft	1940	Earth	Indiana
Dykes Meadow Dam Essex	Significant Hazard	52 ft	1981	Earth	Massachusetts
Eagle Creek Reservoir Dam Marion	High Hazard	85 ft	1967	Earth	Indiana
Eagle Eyrie Lake Dam Bedford	High Hazard	50 ft	—	Earth	Virginia
Eagle Lake Lackawanna	High Hazard	12 ft	1895	Earth	Pennsylvania
Eagle Mountain Dam Tarrant	High Hazard	85 ft	1932	Earth	Texas
Eagle Park Reservoir Eagle	High Hazard	135 ft	1968	Earth	Colorado
Eagle Ranch San Luis Obispo	High Hazard	55 ft	1974	Earth	California
Eagle Rock Los Angeles	High Hazard	113 ft	1953	Earth	California
Early Intake Tuolumne	Low Hazard	56 ft	1925	Arch	California
Easam Mill Seat Lake Dam Walker	Low Hazard	25 ft	1960	Earth	Texas
Eason Lake Dam Miller	Low Hazard	17 ft	1950	Earth	Arkansas
East Balancing Reservoir Dam Tarrant	High Hazard	40 ft	1974	Earth	Texas
East Branch Grand	Significant Hazard	120 ft	1971	Earth	Colorado
East Branch Reservoir Dam Geauga	High Hazard	34 ft	1939	Earth	Ohio
East Broadway Dam Stark	Low Hazard	12 ft	1937	Other	North Dakota
East Canyon Morgan	High Hazard	260 ft	1965	Concrete	Utah
Eastern Oklahoma Hospital Craig	Low Hazard	15 ft	1937	Earth	Oklahoma
Easterwood Lake Dam Johnson	Low Hazard	27 ft	1977	Earth	Missouri
East Fork Lake Dam Richland	High Hazard	84 ft	1972	Earth	Illinois
East Fork Pond River FRS No 1a Todd	Significant Hazard	58 ft	1964	Earth	Kentucky
East Glorietta Los Angeles	High Hazard	22 ft	1932	Other	California
Eastham and Thomason Ranches Lake Dam Walker	Low Hazard	21 ft	1958	Earth	Texas
Eastlake San Diego	High Hazard	35 ft	1986	Earth	California
East Lake Dam Tyler	Significant Hazard	22 ft	1949	Earth	Texas
East Lake Dam Cumberland	High Hazard	17 ft	—	Earth	New Jersey
East Lake Dam Clarke	Significant Hazard	41 ft	1915	Earth	Iowa
East Lake Reservoir Dam Fairfield	High Hazard	47 ft	1855	Earth	Connecticut
East Lenox Reservoir Dam Adams	Significant Hazard	25 ft	1913	Earth	Iowa
East Millinocket Penobscot	Low Hazard	26 ft	1907	Concrete	Maine
East Mt. Reservoir Dam Berkshire	Significant Hazard	20 ft	—	Earth	Massachusetts