Water Supply Dams

7,228 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Trough Creek Reservoir Bedford	Low Hazard	25 ft	—	Earth	Pennsylvania
Trout Creek Chaffee	High Hazard	70 ft	2001	Gravity	Colorado
Trout Lake Siskiyou	Significant Hazard	40 ft	1960	Earth	California
Trout Lake Storage Dam San Juan	High Hazard	—	1929	Concrete	Washington
Trout Run Berks	High Hazard	104 ft	1976	Earth	Pennsylvania
Trout Run Westmoreland	High Hazard	41 ft	1927	Earth	Pennsylvania
Trout Run No 4 Northumberland	High Hazard	34 ft	1882	Earth	Pennsylvania
Troy Low Head Dam Miami	Significant Hazard	9 ft	—	Concrete	Ohio
Troy Town Reservoir Dam #1 Montgomery	Significant Hazard	—	1932	Concrete	North Carolina
Truck Stop Dam Mercer	Significant Hazard	28 ft	1989	Earth	Missouri
Truett Shasta	High Hazard	31 ft	1958	Earth	California
Truitt Davis Lake Dam Taylor	Low Hazard	20 ft	1945	Earth	Texas
Trustees Pueblo Ww #1 Pueblo	Low Hazard	12 ft	1969	Earth	Colorado
Tubb Lake Dam Leon	Low Hazard	15 ft	1970	Earth	Texas
Tubmill Westmoreland	High Hazard	40 ft	1907	Masonry	Pennsylvania
Tucker Lake Dam Cherokee	Low Hazard	30 ft	1973	Earth	Texas
Tucker Lake - North Dam Jefferson	High Hazard	28 ft	1906	Earth	Colorado
Tuckertown Stanly	High Hazard	76 ft	1962	Gravity	North Carolina
Tuckertown Wtp Dam Stanly	Low Hazard	—	1990	Earth	North Carolina
Tuck Lake Dam Bastrop	Significant Hazard	21 ft	1962	Earth	Texas
Tularosa Farms Lake Dam Leon	Low Hazard	20 ft	1977	Earth	Texas
Tule Lake Lassen	High Hazard	16 ft	1904	Earth	California
Tuolumne Log Pond Tuolumne	High Hazard	22 ft	1912	Gravity	California
Turkey Hill Reservoir Dam & Dike Middlesex	Significant Hazard	10 ft	—	Earth	Connecticut
Turkey Ranch Napa	High Hazard	35 ft	1999	Earth	California
Turkey Tank Dam McMullen	Low Hazard	26 ft	1968	Earth	Texas
Turlock Lake Stanislaus	High Hazard	36 ft	1915	Earth	California
Turner San Diego	High Hazard	111 ft	1971	Earth	California
Turner Creek Reservoir Yamhill	Low Hazard	26 ft	1978	Earth	Oregon
Turner Dam Polk	Low Hazard	19 ft	—	Earth	Oregon
Turner May Dam Nolan	Significant Hazard	29 ft	1950	Earth	Texas
Turtle Rock Lake De Soto	Low Hazard	26 ft	2020	Earth	Louisiana
Tuscarawas River Diversion Dam Summit	High Hazard	26 ft	1956	Earth	Ohio
Tussahaw Reservoir Dam Henry	High Hazard	73 ft	2007	Earth	Georgia
Tuxbury Pond Dam Essex	Significant Hazard	10 ft	—	Earth	Massachusetts
Tuxedo Lake Dam Orange	Significant Hazard	14 ft	1898	Earth	New York
Twain Harte Tuolumne	Significant Hazard	36 ft	1928	Multi-Arch	California
Twelve Mile Creek Watershed Site M-1 Union	High Hazard	66 ft	1983	Earth	Iowa
Twin Creeks Distribution Pond Dam Humboldt	Low Hazard	50 ft	1995	Earth	Nevada
Twin Lakes Bor Lake	High Hazard	55 ft	1948	Earth	Colorado
Twin Lakes Dam Tyler	Significant Hazard	10 ft	1915	Earth	Texas
Twin Lakes No. 1 Sheridan	High Hazard	84 ft	1998	Earth	Wyoming
Twin Lakes Reservoir Larimer	Significant Hazard	35 ft	1998	Earth	Colorado
Twin Lakes (Salt Lake) Salt Lake	High Hazard	—	1914	Gravity	Utah
Twin-Rush Creek Dam No. 1 Washington	High Hazard	50 ft	1980	Earth	Indiana
Twin-Rush Creek Dam No. 2 Washington	High Hazard	65 ft	1969	Earth	Indiana
Twin Springs Dam Malheur	Low Hazard	—	2004	Gravity	Oregon
Twin Springs Dam Harney	Low Hazard	—	1982	Gravity	Oregon
Twitchell Pond Oxford	Low Hazard	7 ft	1860	Concrete	Maine
Twitchell Reservoir Dam New Haven	Significant Hazard	7 ft	—	Earth	Connecticut