High Hazard Dams

Loss of human life is likely if the dam fails.

Dam Name	Hazard	Height	Built	Type	State
Tuscany Park Dam Wood	High Hazard	22 ft	1950	Earth	Texas
Tuscarawas River Diversion Dam Summit	High Hazard	26 ft	1956	Earth	Ohio
Tuscarora Lake Susquehanna	High Hazard	12 ft	1919	Earth	Pennsylvania
Tuscumbia WS Str 39 Dam Prentiss	High Hazard	28 ft	1973	Earth	Mississippi
Tuscumbia WS Str Number 34 Dam Prentiss	High Hazard	34 ft	1989	Earth	Mississippi
Tuscumbia WS Str Number 36 Dam Prentiss	High Hazard	30 ft	1988	Earth	Mississippi
Tuscumbia WS Str Number 8 Dam Alcorn	High Hazard	38 ft	1975	Earth	Mississippi
Tuskegee City Lake Macon	High Hazard	—	1947	Earth	Alabama
Tusquittee Landing Dam #1 Clay	High Hazard	—	—	Earth	North Carolina
Tussahaw Reservoir Dam Henry	High Hazard	73 ft	2007	Earth	Georgia
Tuttle Creek Dam Pottawatomie	High Hazard	—	1962	Rockfill	Kansas
Tuxedo Hydroelectric Dam Henderson	High Hazard	—	1920	Concrete	North Carolina
Tuxedo Saddle Dam Henderson	High Hazard	—	—	Earth	North Carolina
Twehous Lake Dam Cole	High Hazard	48 ft	1973	Earth	Missouri
Twelve Mile Creek Watershed Site M-1 Union	High Hazard	66 ft	1983	Earth	Iowa
Twelve Mile Creek WCD 54a Pickens	High Hazard	36 ft	1965	—	South Carolina
Twelve Mile Creek WCD Dam 16 Pickens	High Hazard	42 ft	1955	—	South Carolina
Twelve Mile Creek WCD Dam 22 Pickens	High Hazard	41 ft	1960	—	South Carolina
Twelve Mile Creek WCD Dam 5 Pickens	High Hazard	49 ft	1957	—	South Carolina
Twelve Mile Creek WCD Dam 8 Pickens	High Hazard	44 ft	1956	—	South Carolina
Twelve Mile Cr WCD Dam 12 Pickens	High Hazard	32 ft	1954	—	South Carolina
Twelve Oaks Trace Dam Madison	High Hazard	11 ft	—	Earth	Mississippi
Twelvepole Refuse Impoundment Mingo	High Hazard	235 ft	—	Earth	West Virginia
Twenty-Sixth Street Stormwater Detention Basin Polk	High Hazard	43 ft	2007	Earth	Iowa
Twin Branch St. Joseph	High Hazard	41 ft	1903	Gravity	Indiana
Twin Branch No.1 Dam McDowell	High Hazard	52 ft	1920	Earth	West Virginia
Twin Bridges Wastewater Lagoon Dam Madison	High Hazard	13 ft	—	—	Montana
Twin Buttes Tom Green	High Hazard	134 ft	1962	Earth	Texas
Twin Echoes Dam Warren	High Hazard	40 ft	1970	Earth	Missouri
Twin Falls Dickinson	High Hazard	56 ft	1912	Gravity	Wisconsin
Twin Falls Dickinson	High Hazard	35 ft	1912	Concrete	Michigan
Twin Lake Dam Mercer	High Hazard	51 ft	1981	Earth	Missouri
Twin Lake Dam #2 Durham	High Hazard	—	—	Earth	North Carolina
Twin Lake Estates East Lake Dam Medina	High Hazard	22 ft	1964	Earth	Texas
Twin Lake Estates West Lake Dam Medina	High Hazard	18 ft	1964	Earth	Texas
Twin Lakes Ferry	High Hazard	—	1940	Earth	Washington
Twin Lakes Bor Lake	High Hazard	55 ft	1948	Earth	Colorado
Twin Lakes Dam Brazoria	High Hazard	8 ft	1955	Earth	Texas
Twin Lakes Dam Madison	High Hazard	28 ft	1940	Earth	Mississippi
Twin Lakes Dam Seward	High Hazard	—	1965	Earth	Nebraska
Twin Lakes Dam Williamson	High Hazard	26 ft	1972	Earth	Texas
Twin Lakes Dam # 1 Greene	High Hazard	32 ft	—	Earth	Virginia
Twin Lakes Dam # 2 Greene	High Hazard	34 ft	—	Earth	Virginia
Twin Lakes Dam A Pulaski	High Hazard	20 ft	1950	Earth	Arkansas
Twin Lakes Dam B Pulaski	High Hazard	15 ft	1964	Earth	Arkansas
Twin Lakes Dam No 1 Bandera	High Hazard	21 ft	1948	Earth	Texas
Twin Lakes Dam No. 3 Greene	High Hazard	29 ft	—	Earth	Virginia
Twin Lakes East Oklahoma	High Hazard	23 ft	1930	Earth	Oklahoma
Twin Lakes No 1 Westmoreland	High Hazard	31 ft	1908	Earth	Pennsylvania
Twin Lakes No. 1 Sheridan	High Hazard	84 ft	1998	Earth	Wyoming