High Hazard Dams

Loss of human life is likely if the dam fails.

Dam Name	Hazard	Height	Built	Type	State
Wilkins Dam Orange	High Hazard	—	—	Earth	North Carolina
Wilkinson Dam Cabarrus	High Hazard	—	—	Earth	North Carolina
Willamette Falls Locks Clackamas	High Hazard	—	1873	Concrete	Oregon
Willamette Industries Dam Marlboro	High Hazard	14 ft	1973	—	South Carolina
Willard City Upground Reservoir Huron	High Hazard	65 ft	1971	Earth	Ohio
Will Bond INCorporated Pond #2 Dam DeSoto	High Hazard	24 ft	—	Earth	Mississippi
Will Bond INCorporated Pond Dam DeSoto	High Hazard	22 ft	1960	Earth	Mississippi
Willcox Dam Petersburg	High Hazard	18 ft	—	Earth	Virginia
Will Engle Dam Blount	High Hazard	—	1957	Earth	Alabama
Willett Pond Dam Norfolk	High Hazard	25 ft	1913	Earth	Massachusetts
William Bolen Dam Barnwell	High Hazard	23 ft	—	—	South Carolina
William E. Towell Dam Phelps	High Hazard	48 ft	1965	Earth	Missouri
William Evatt Dam Pickens	High Hazard	26 ft	1955	—	South Carolina
William Harris Reservoir Dam Brazoria	High Hazard	9 ft	1947	Earth	Texas
William H. Harsha Dam Clermont	High Hazard	—	1973	Rockfill	Ohio
William Jenkins Dam Barnwell	High Hazard	11 ft	—	—	South Carolina
William L. Cochran Impounding Blair	High Hazard	60 ft	1898	Earth	Pennsylvania
William L. Jess Dam Jackson	High Hazard	342 ft	1976	Rockfill	Oregon
William L. Martin Dam Alamance	High Hazard	—	—	Earth	North Carolina
Williams Bridge Reservoir Lackawanna	High Hazard	54 ft	1893	Earth	Pennsylvania
Williams Creek Hinsdale	High Hazard	84 ft	1958	Earth	Colorado
Williams Creek WS SCS Site 1 Dam Gillespie	High Hazard	46 ft	1968	Earth	Texas
Williams Creek WS SCS Site 2 Dam Gillespie	High Hazard	41 ft	1968	Earth	Texas
Williams Creek WS SCS Site 3 Dam Gillespie	High Hazard	50 ft	1967	Earth	Texas
Williams Creek WS SCS Site 4 Dam Gillespie	High Hazard	50 ft	1967	Earth	Texas
Williams Dam Atascosa	High Hazard	14 ft	1968	Earth	Texas
Williams Dam Jefferson	High Hazard	26 ft	1965	Earth	Missouri
Williams Dam North Sec 18 Audrain	High Hazard	25 ft	—	Earth	Missouri
Williams Dam South Sec 18 Audrain	High Hazard	25 ft	1973	Earth	Missouri
Williams Fork Main Grand	High Hazard	209 ft	1959	Concrete	Colorado
Williams-Johnson Pond Dam Wake	High Hazard	—	—	Earth	North Carolina
Williams Lake Dam Middlesex	High Hazard	11 ft	1882	Earth	Massachusetts
Williams Lake Sec-31 Dam Wayne	High Hazard	20 ft	—	Earth	Missouri
Williams Millpond Dam Wayne	High Hazard	—	1938	Earth	North Carolina
Williamson Dam Eastland	High Hazard	96 ft	1923	Buttress	Texas
Williamson Energy/Pond Creek Mine/Refuse Disposal Facility Williamson	High Hazard	88 ft	—	Rockfill	Illinois
Williams,Paul Dam Pike	High Hazard	28 ft	1973	Earth	Missouri
Williams Pond Dam York	High Hazard	19 ft	1967	—	South Carolina
Williams Pond Dam Hartford	High Hazard	17 ft	1900	Earth	Connecticut
Williams Pond Dam Sussex	High Hazard	14 ft	1956	Gravity	Delaware
Williams Reservoir Allen	High Hazard	53 ft	2012	Earth	Ohio
Williams Run Cambria	High Hazard	43 ft	1956	Earth	Pennsylvania
Williams Terminal Reservoir Dam Durham	High Hazard	—	—	Earth	North Carolina
Williamstown Reservoir Dam Berkshire	High Hazard	31 ft	1898	Earth	Massachusetts
William Symington Dam Kitsap	High Hazard	—	1965	Earth	Washington
Willibrand Lake Dam Osage	High Hazard	25 ft	1957	Earth	Missouri
Willimantic Reservoir Dam Windham	High Hazard	29 ft	1885	Concrete	Connecticut
Willisburg Lake Dam Washington	High Hazard	77 ft	1968	Earth	Kentucky
Willis River Dam #1a Buckingham	High Hazard	42 ft	1975	Earth	Virginia
Willis River Dam #2 Buckingham	High Hazard	46 ft	1975	Earth	Virginia