High Hazard Dams

Loss of human life is likely if the dam fails.

Dam Name	Hazard	Height	Built	Type	State
Wrightsville Washington	High Hazard	115 ft	1935	Earth	Vermont
Ws Lee Steam Plant Primary Ash Basin Dam Anderson	High Hazard	26 ft	1974	—	South Carolina
Ws Packaging Canal Dam Hillsborough	High Hazard	15 ft	1876	Earth	New Hampshire
Wyaconda City Dam Clark	High Hazard	32 ft	1977	Earth	Missouri
Wycliff Avenue Dam Dallas	High Hazard	24 ft	1958	Earth	Texas
Wylie York	High Hazard	119 ft	1925	Gravity	South Carolina
Wyman Somerset	High Hazard	155 ft	1930	Earth	Maine
Wyman Pond Compensating Reservoir Dam Worcester	High Hazard	25 ft	1892	Concrete	Massachusetts
Wynoochee Grays Harbor	High Hazard	175 ft	1972	Gravity	Washington
Wyoming Lake Dam Kent	High Hazard	13 ft	1925	Gravity	Delaware
Wyoming Upper Washington	High Hazard	11 ft	1885	Masonry	Rhode Island
Yachtmans Point Dam Davidson	High Hazard	—	2004	Earth	North Carolina
Yacovelli Lake Dam St. Francois	High Hazard	20 ft	—	Earth	Missouri
Yadkin Falls Montgomery	High Hazard	74 ft	1919	Gravity	North Carolina
Yadkin Narrows Stanly	High Hazard	201 ft	1917	Gravity	North Carolina
Yadkin River Water Supply Project Dam Union	High Hazard	—	—	Other	North Carolina
Yadkinville Wtp Reservoir Dam Yadkin	High Hazard	—	2009	Earth	North Carolina
Yager Lake Dam Oldham	High Hazard	33 ft	1950	Earth	Kentucky
Yahola Tulsa	High Hazard	35 ft	1948	Earth	Oklahoma
Yahoola Creek Reservoir Dam Lumpkin	High Hazard	45 ft	—	Earth	Georgia
Yahou Calhoun	High Hazard	—	1967	Earth	Alabama
Yahuecas Dam Adjuntas	High Hazard	90 ft	1956	Gravity	Puerto Rico
Yale Cowlitz	High Hazard	323 ft	1953	Earth	Washington
Yamcolo Garfield	High Hazard	97 ft	1980	Earth	Colorado
Yanceyville Water Supply Dam Caswell	High Hazard	—	1952	Earth	North Carolina
Yankee Jackson	High Hazard	55 ft	1951	Earth	Oregon
Yankee Doodle Tailings Dam Silver Bow	High Hazard	570 ft	1972	Rockfill	Montana
Yankee Hill Dam Lancaster	High Hazard	—	1965	Earth	Nebraska
Yankee Lake Dam Sullivan	High Hazard	22 ft	1844	Earth	New York
Yankee Meadow Iron	High Hazard	—	1926	Earth	Utah
Yarboro Dam Grimes	High Hazard	39 ft	1910	Earth	Texas
Yardley Road Lake Dam Morris	High Hazard	30 ft	—	Earth	New Jersey
Yards Creek Lower - Auxiliary Dike Warren	High Hazard	35 ft	1965	Earth	New Jersey
Yards Creek Lower - Main Dam Warren	High Hazard	55 ft	1965	Earth	New Jersey
Yards Creek Upper - East Dike Warren	High Hazard	21 ft	1965	Earth	New Jersey
Yards Creek Upper - Main Dam Warren	High Hazard	70 ft	1965	Rockfill	New Jersey
Yards Creek Upper - S. W. Dike Warren	High Hazard	25 ft	1965	Earth	New Jersey
Yards Creek Upper - West Dike Warren	High Hazard	52 ft	1965	Rockfill	New Jersey
Yarling Lake Dam Brown	High Hazard	29 ft	1950	Earth	Indiana
Yates Elmore	High Hazard	87 ft	1928	Gravity	Alabama
Yatesville Dam Lawrence	High Hazard	—	1988	Rockfill	Kentucky
Yawgoog Pond Washington	High Hazard	14 ft	1885	Earth	Rhode Island
Y Branch Dam Potter	High Hazard	28 ft	1950	Earth	Texas
Yeager Lakes Dam Kingman	High Hazard	21 ft	1929	Earth	Kansas
Yellow Creek Indiana	High Hazard	62 ft	1969	Earth	Pennsylvania
Yellow Creek Reservoir Dam Dawson	High Hazard	114 ft	1999	Earth	Georgia
Yellow Gate Lake Dam San Jacinto	High Hazard	26 ft	1958	Earth	Texas
Yellow Jacket Creek Watershed Str. # 15 Troup	High Hazard	48 ft	1973	Earth	Georgia
Yellow Lake Outlet Dike King	High Hazard	—	1986	Earth	Washington
Yellow River Rc&D WS Str. Y-3 Gwinnett	High Hazard	36 ft	1967	Earth	Georgia