Significant Hazard Dams

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Dam Name	Hazard	Height	Built	Type	State
Town Millpond Dam New Haven	Significant Hazard	4 ft	—	Earth	Connecticut
Town of Altamont Duchesne	Significant Hazard	—	—	Earth	Utah
Town of Fairview Dam Union	Significant Hazard	—	—	Other	North Carolina
Town of Mt. Pleasant Water District #1 Dam Westchester	Significant Hazard	35 ft	1915	Earth	New York
Town of Mt. Pleasant Water District #2 Dam Westchester	Significant Hazard	10 ft	1915	Earth	New York
Town of Mt. Pleasant Water District #3 Dam Westchester	Significant Hazard	7 ft	1915	Earth	New York
Town of Springdale 88r161 Washington	Significant Hazard	—	—	Earth	Utah
Townsend Harbor Dam Middlesex	Significant Hazard	11 ft	1870	Rockfill	Massachusetts
Tracey Pond Dam Hartford	Significant Hazard	12 ft	—	Earth	Connecticut
Tract 37 Crook	Significant Hazard	31 ft	1976	Earth	Wyoming
Trading Cove Pond Dam New London	Significant Hazard	32 ft	1900	Masonry	Connecticut
Trail Elmore	Significant Hazard	30 ft	1960	—	Idaho
Trail Ridge Plant Settling Area Bradford	Significant Hazard	20 ft	1976	Earth	Florida
Transfer Station Lagoons Dam Merrimack	Significant Hazard	—	—	—	New Hampshire
Transvaal Company Lake Dam Pulaski	Significant Hazard	—	1946	Earth	Arkansas
Trask Lake Dam Mason	Significant Hazard	—	1969	Earth	Washington
Travis Lower Lake Caroline	Significant Hazard	21 ft	1966	Earth	Virginia
Travis Pond Wayne	Significant Hazard	5 ft	—	Earth	Pennsylvania
Treadwell Mills Clinton	Significant Hazard	24 ft	1938	Gravity	New York
Treasure Lake Dam Sullivan	Significant Hazard	7 ft	1911	Earth	New York
Tredmont Lake Dam Alamance	Significant Hazard	—	—	Earth	North Carolina
Tree Top Prosser Lagoons 2 & 3 Benton	Significant Hazard	—	1991	Earth	Washington
Trego Washburn	Significant Hazard	39 ft	1927	Gravity	Wisconsin
Treman Lake Dam Tompkins	Significant Hazard	36 ft	1930	Arch	New York
Tremont Street Dam Plymouth	Significant Hazard	12 ft	—	Concrete	Massachusetts
Trenton Falls - Main Dam Herkimer	Significant Hazard	60 ft	1901	Concrete	New York
Trent Short Dam Vigo	Significant Hazard	26 ft	—	—	Indiana
Tres Vistas Estates Dam Parker	Significant Hazard	24 ft	—	Earth	Texas
Triangle 6 Ranch Dam Dallas	Significant Hazard	—	—	Earth	Alabama
Tributary To South Ellerbe Creek Dam Durham	Significant Hazard	—	—	Earth	North Carolina
Trices Lake Dam Cumberland	Significant Hazard	25 ft	—	Earth	Virginia
Tri-Land Estates Lake Dam Vigo	Significant Hazard	34 ft	1945	Earth	Indiana
Trimont Estates Dam Macon	Significant Hazard	—	—	Earth	North Carolina
Triple L Lake Dam Sullivan	Significant Hazard	30 ft	1966	Earth	New York
Troiano Dam Culpeper	Significant Hazard	21 ft	—	Earth	Virginia
Trophy Lake Navajo	Significant Hazard	33 ft	1975	Earth	Arizona
Trostle Pond Lackawanna	Significant Hazard	15 ft	—	Earth	Pennsylvania
Trotter Sumner	Significant Hazard	—	—	Earth	Tennessee
Trotter Dickson	Significant Hazard	—	1995	Earth	Tennessee
Trouble Creek Dam Dodge	Significant Hazard	55 ft	1984	Earth	Nebraska
Trouble Pond Dam Middlesex	Significant Hazard	7 ft	—	Concrete	Connecticut
Troublesome Cr Watershed Site 84-1 Audubon	Significant Hazard	32 ft	1976	Earth	Iowa
Trout Creek Dam Ontonagon	Significant Hazard	12 ft	1899	Earth	Michigan
Trout Lake Siskiyou	Significant Hazard	40 ft	1960	Earth	California
Troutvale #1 (Upper) Hinsdale	Significant Hazard	12 ft	1911	Earth	Colorado
Troutvale #2 (Lower) Hinsdale	Significant Hazard	15 ft	1940	Earth	Colorado
Troy and Beverly Gunter Dam Lexington	Significant Hazard	16 ft	1958	—	South Carolina
Troy Lee Hunt Corson	Significant Hazard	21 ft	1934	Earth	South Dakota
Troy Lock and Dam 1 Albany	Significant Hazard	20 ft	1915	Concrete	New York
Troy Low Head Dam Miami	Significant Hazard	9 ft	—	Concrete	Ohio