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
Timber Trails Lake Dam Nelson	Significant Hazard	22 ft	1972	Earth	Kentucky
Timken Lake Dam Stark	Significant Hazard	17 ft	1962	Earth	Ohio
Tinker Pond Dam Tolland	Significant Hazard	10 ft	1900	Earth	Connecticut
Tinkers Creek Regional Swm Pond No. 8 Prince George's	Significant Hazard	18 ft	1991	Earth	Maryland
Tink Wig Lake Pike	Significant Hazard	11 ft	1968	Earth	Pennsylvania
Tipsaw Lake (Str. #4) Perry	Significant Hazard	53 ft	1967	Earth	Indiana
Tisdale Pond Dam Bristol	Significant Hazard	9 ft	1974	Rockfill	Massachusetts
Tivoli Lake Spillway Rockland	Significant Hazard	5 ft	1908	Concrete	New York
T J Stewart Lake Chilton	Significant Hazard	—	1960	Earth	Alabama
Tl James Pond No 2 Union	Significant Hazard	27 ft	1977	Earth	Louisiana
Toad Suck Ferry Lock and Dam Faulkner	Significant Hazard	37 ft	1969	Concrete	Arkansas
Tobey Pond Dam Litchfield	Significant Hazard	12 ft	1870	Earth	Connecticut
Todd Lake Dam Merrimack	Significant Hazard	17 ft	1858	Concrete	New Hampshire
Todd's Lake Rutherford	Significant Hazard	—	1930	Earth	Tennessee
Todds Pond New Haven	Significant Hazard	4 ft	—	Earth	Connecticut
Toliver Lake Coffee	Significant Hazard	—	1964	Earth	Tennessee
Tolleson Pond Dam Lexington	Significant Hazard	16 ft	—	—	South Carolina
Tolman Knox	Significant Hazard	20 ft	1967	Concrete	Maine
Tolna Dam 1 Nelson	Significant Hazard	30 ft	1936	Earth	North Dakota
Tomahawk Gunnison	Significant Hazard	30 ft	1957	Earth	Colorado
Tom Austin Greene	Significant Hazard	—	1956	Earth	Tennessee
Tom Bevill Lock and Dam Pickens	Significant Hazard	—	1979	Gravity	Alabama
Tombigbee Lake Dam Polk	Significant Hazard	33 ft	1971	Earth	Texas
Tom Gerald Ranch Lake Dam Randall	Significant Hazard	24 ft	1966	Earth	Texas
Tom J Valley	Significant Hazard	57 ft	1995	—	Idaho
Tom J Dike Valley	Significant Hazard	27 ft	1995	—	Idaho
Tomkins Cove Dam Rockland	Significant Hazard	8 ft	1915	Masonry	New York
Tomlinson Lake Dam Hancock	Significant Hazard	38 ft	1936	Gravity	West Virginia
Tomlinson Lake Dam Litchfield	Significant Hazard	10 ft	1950	Earth	Connecticut
Tomlinson Mill Dam Burlington	Significant Hazard	11 ft	—	Earth	New Jersey
Tommy Cogle #3 Dallas	Significant Hazard	9 ft	1995	Earth	Alabama
Tom Norton Dam Dillon	Significant Hazard	20 ft	1998	—	South Carolina
Tompkins Pond Dam Fulton	Significant Hazard	28 ft	1974	Earth	Illinois
Toms Creek Dam Wise	Significant Hazard	48 ft	—	Arch	Virginia
Ton-A-Wandah Dam Henderson	Significant Hazard	—	—	Concrete	North Carolina
Tony Price Dam Van Zandt	Significant Hazard	20 ft	2004	Earth	Texas
Too Lazy To Farm Shelby	Significant Hazard	—	1957	Earth	Tennessee
Topping Road Dam Fairfield	Significant Hazard	15 ft	1920	Earth	Connecticut
Toreson Modoc	Significant Hazard	55 ft	1898	Earth	California
Torger Dam Petroleum	Significant Hazard	18 ft	1976	Earth	Montana
Torrington Wastewater Treatment Goshen	Significant Hazard	9 ft	1994	Earth	Wyoming
Touhy Avenue Reservoir Dam Cook	Significant Hazard	10 ft	2004	Concrete	Illinois
Towantic Pond Dam New Haven	Significant Hazard	18 ft	1870	Masonry	Connecticut
Tower Hill Community Pond Dam (Tower Hill Road) St. Mary's	Significant Hazard	18 ft	1975	Earth	Maryland
Tower Lake Dam Madison	Significant Hazard	61 ft	1964	Earth	Illinois
Town Sanpete	Significant Hazard	—	1930	Earth	Utah
Town Center Archuleta	Significant Hazard	40 ft	1973	Earth	Colorado
Town Creek Watershed Structure 28 Dam Union	Significant Hazard	32 ft	1975	Earth	Mississippi
Town Farm Pond Dam Worcester	Significant Hazard	11 ft	—	Gravity	Massachusetts
Town Mall Swm Pond Carroll	Significant Hazard	12 ft	1985	Earth	Maryland