Water Supply Dams

7,228 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Dover Greens Dam Dutchess	High Hazard	60 ft	1918	Concrete	New York
Dow Brook Reservoir Dam Essex	Significant Hazard	20 ft	1895	Rockfill	Massachusetts
Dowdy Lake No 1 Dam Clay	Low Hazard	14 ft	1957	Earth	Texas
Dowdy Lake No 2 Dam Clay	Low Hazard	16 ft	1957	Earth	Texas
Dowling Lake #1 Lincoln	Low Hazard	16 ft	2015	Earth	Louisiana
Dowling Lake #2 Lincoln	Low Hazard	20 ft	2015	Earth	Louisiana
Downsville Dam Delaware	High Hazard	204 ft	1954	Earth	New York
Drain Sewage Lagoon Douglas	Significant Hazard	17 ft	1986	Earth	Oregon
Drakes Branch Lake Dam Tyler	Low Hazard	11 ft	1965	Earth	Texas
Draper Pressure Irrigation Project Salt Lake	High Hazard	—	1993	Earth	Utah
Drayton Dam Pembina	Low Hazard	9 ft	1964	Other	North Dakota
Drechsel Lake Dam Somervell	Low Hazard	25 ft	1966	Earth	Texas
Dredge Dam Ringgold	Low Hazard	26 ft	2013	Earth	Iowa
Drexel City Reservoir Dam South Bates	Low Hazard	29 ft	1968	Earth	Missouri
Drexel Lake Dam Bates	High Hazard	22 ft	1953	Earth	Missouri
Drinkwater Los Angeles	Significant Hazard	105 ft	1923	Earth	California
Dr James Bruce No 3 Lee	Low Hazard	—	1966	Earth	Alabama
Dr James Bruce No 4 Lee	Low Hazard	—	1966	Earth	Alabama
Druid Hill Lake Reservoir and Storage Tanks Baltimore City	High Hazard	118 ft	1871	Earth	Maryland
Drum Dam Bollinger	Low Hazard	20 ft	1972	Earth	Missouri
Dry Creek Larimer	High Hazard	52 ft	2007	Earth	Colorado
Dry Draw Dam Fall River	Significant Hazard	18 ft	1920	Earth	South Dakota
Dry Hole Harding	Low Hazard	27 ft	1951	Earth	South Dakota
Dry Reservoir Dam Willacy	Low Hazard	8 ft	1949	Earth	Texas
Dry Run Dam #101 Page	High Hazard	67 ft	—	Earth	Virginia
Dte Energy Greenwood Cooling Reservoir St. Clair	Low Hazard	16 ft	2016	Earth	Michigan
Duanesburg Reservoir Dam Schenectady	Low Hazard	15 ft	—	Earth	New York
Duck Creek East Dam White Pine	High Hazard	15 ft	—	Earth	Nevada
Duck Creek West Dam White Pine	Low Hazard	17 ft	—	Earth	Nevada
Dudley Dam Spink	Low Hazard	20 ft	1934	Earth	South Dakota
Dugan Dam Webster	Low Hazard	15 ft	1955	Earth	Missouri
Dugger Delta	Low Hazard	25 ft	1947	Earth	Colorado
Duke Lake Jefferson	Low Hazard	34 ft	1972	Earth	Colorado
Dulles Airport Dam Loudoun	Significant Hazard	11 ft	—	Earth	Virginia
Dullnig Lake Dam Dimmit	Low Hazard	17 ft	1959	Earth	Texas
Dunbar Lake Dam Maverick	Low Hazard	22 ft	1974	Earth	Texas
Dunbar Lake Dam Little River	Low Hazard	—	1964	Earth	Arkansas
Duncan Stephens	Significant Hazard	45 ft	1937	Earth	Oklahoma
Duncan Modoc	Low Hazard	19 ft	1919	Earth	California
Duncan Creek Diversion Placer	Low Hazard	20 ft	1965	Concrete	California
Duncan Creek WCD Dam 6b Laurens	Low Hazard	48 ft	1970	—	South Carolina
Dundee Passaic	Low Hazard	16 ft	1854	Masonry	New Jersey
Dunes Adams	High Hazard	62 ft	2012	Earth	Colorado
Dunfee Lake Dam Worth	High Hazard	30 ft	1935	Earth	Missouri
Dunlap Sequatchie	High Hazard	—	2003	Earth	Tennessee
Dunmore No 1 Lackawanna	High Hazard	47 ft	1877	Earth	Pennsylvania
Dunmore No 3 Lackawanna	Low Hazard	14 ft	1845	Earth	Pennsylvania
Dunmore No 7 Reservoir Lackawanna	High Hazard	45 ft	1872	Gravity	Pennsylvania
Dunn Lake Dam Warren	High Hazard	38 ft	1970	Earth	Missouri
Dunn Ranch Riverside	High Hazard	44 ft	1987	Earth	California