High Hazard Dams

Loss of human life is likely if the dam fails.

Dam Name	Hazard	Height	Built	Type	State
Waldo Lake Dam Plymouth	High Hazard	18 ft	1936	Gravity	Massachusetts
Wales Lake Dam Buchanan	High Hazard	20 ft	1956	Earth	Missouri
Wales Lake Dam - No Name 784 Platte	High Hazard	30 ft	1960	Earth	Missouri
Walker Maury	High Hazard	—	2004	Earth	Tennessee
Walker Construction Dam Menifee	High Hazard	42 ft	1967	Earth	Kentucky
Walker Creek #1 Wood	High Hazard	64 ft	1974	Earth	West Virginia
Walker Farm Lagoon Chester	High Hazard	26 ft	2002	Earth	Pennsylvania
Walker Lake Pike	High Hazard	15 ft	1953	Earth	Pennsylvania
Walker Lake Dam Hidalgo	High Hazard	12 ft	1927	Earth	Texas
Walker Lake Dam Rockdale	High Hazard	30 ft	1950	Other	Georgia
Walker Millpond Dam Carteret	High Hazard	—	1900	Earth	North Carolina
Walkers Lake Dam Carroll	High Hazard	20 ft	1962	Earth	Georgia
Wallace Hancock	High Hazard	120 ft	1980	Gravity	Georgia
Wallace Cabin Branch Cr Dam	High Hazard	—	—	Other	West Virginia
Wallace Dam	High Hazard	41 ft	—	Earth	West Virginia
Wallace Dam Wyandotte	High Hazard	31 ft	—	—	Kansas
Wallace Hathcock Dam Cullman	High Hazard	20 ft	1956	Earth	Alabama
Wallace Lake Dam Caddo	High Hazard	—	1946	Earth	Louisiana
Wallace Pond Dam Essex	High Hazard	22 ft	1900	Earth	Massachusetts
Wallbrook Dam Wake	High Hazard	—	—	Other	North Carolina
Waller Dam Rowan	High Hazard	—	—	Earth	North Carolina
Waller Lake Dam Lawrence	High Hazard	24 ft	1955	Earth	Ohio
Waller Lake Dam Dunklin	High Hazard	30 ft	1968	Earth	Missouri
Waller Mill Dam York	High Hazard	40 ft	—	Earth	Virginia
Wallitsch Dam Spencer	High Hazard	27 ft	1968	Earth	Kentucky
Wall Lake Dam Forsyth	High Hazard	—	—	Earth	North Carolina
Wall Lake Dam Richmond	High Hazard	—	1913	Earth	North Carolina
Wallowa Lake Wallowa	High Hazard	39 ft	1931	Concrete	Oregon
Walnut Branch North Detention Dam Guadalupe	High Hazard	12 ft	2010	Earth	Texas
Walnut Canyon Orange	High Hazard	187 ft	1968	Earth	California
Walnut Canyon Coconino	High Hazard	41 ft	1881	Masonry	Arizona
Walnut Crest Lake Dam Boone	High Hazard	25 ft	1969	Earth	Missouri
Walnut Hill Lake Dam Phelps	High Hazard	20 ft	1973	Earth	Missouri
Walnut Hollow Lake Dam Iron	High Hazard	32 ft	1975	Earth	Missouri
Walnut Hollow Lake Dam Sec 2-Se Iron	High Hazard	25 ft	1973	Earth	Missouri
Walpole Reservoir Dam Cheshire	High Hazard	20 ft	1901	Earth	New Hampshire
Walsenburg City Lake Huerfano	High Hazard	21 ft	2019	Earth	Colorado
Walsh Juneau	High Hazard	28 ft	1976	Earth	Wisconsin
Walsh Ranch Dam Parker	High Hazard	25 ft	—	Earth	Texas
Walsingham Reservoir Pinellas	High Hazard	11 ft	—	Earth	Florida
Walter Bouldin Elmore	High Hazard	174 ft	1967	Earth	Alabama
Walter F. George Lock and Dam Clay	High Hazard	106 ft	1962	Concrete	Alabama
Walter Richards Lake Dam Harris	High Hazard	44 ft	1940	Earth	Georgia
Walters Haywood	High Hazard	185 ft	1929	Arch	North Carolina
Walters City Lake Cotton	High Hazard	30 ft	1936	Earth	Oklahoma
Walters Pond Dam Abbeville	High Hazard	23 ft	1986	—	South Carolina
Walterville Forebay Lane	High Hazard	24 ft	1911	Concrete	Oregon
Walterville Storage Pond Lane	High Hazard	10 ft	1951	Earth	Oregon
Walter Vinson Lake Dam Hinds	High Hazard	19 ft	1994	Earth	Mississippi
Walton Lake Dam Bandera	High Hazard	50 ft	1940	Earth	Texas