High Hazard Dams

Loss of human life is likely if the dam fails.

Dam Name	Hazard	Height	Built	Type	State
Yellowsmoke Park Dam Crawford	High Hazard	59 ft	1980	Earth	Iowa
Yellowstone Lafayette	High Hazard	32 ft	1953	Gravity	Wisconsin
Yellowtail Big Horn	High Hazard	491 ft	1966	Concrete	Montana
Yellow Water Dike Petroleum	High Hazard	11 ft	1938	Rockfill	Montana
Yellow Water Main Dam Petroleum	High Hazard	37 ft	1938	Rockfill	Montana
Yellowwood Lake Dam Brown	High Hazard	41 ft	1939	Earth	Indiana
Yelm Canal Dike Thurston	High Hazard	35 ft	1930	Earth	Washington
Yesterday South Lake Dam Tate	High Hazard	24 ft	—	Earth	Mississippi
Yett Creek Park Dam Travis	High Hazard	16 ft	1996	Earth	Texas
Ymca Camp Mcalister Dam Orange	High Hazard	26 ft	1955	Earth	New York
Yonah Oconee	High Hazard	90 ft	1925	Gravity	Georgia
Yorba Orange	High Hazard	45 ft	1907	Earth	California
York Creek WS SCS Site 10 Dam Guadalupe	High Hazard	40 ft	1963	Earth	Texas
York Creek WS SCS Site 12 Dam Guadalupe	High Hazard	46 ft	1963	Earth	Texas
York Creek WS SCS Site 13 Dam Guadalupe	High Hazard	34 ft	1964	Earth	Texas
York Creek WS SCS Site 14 Dam Guadalupe	High Hazard	25 ft	1963	Earth	Texas
York Creek WS SCS Site 1 Dam Comal	High Hazard	81 ft	1967	Earth	Texas
York Creek WS SCS Site 2 Dam Comal	High Hazard	48 ft	1963	Earth	Texas
York Creek WS SCS Site 3 Dam Comal	High Hazard	31 ft	1967	Earth	Texas
York Creek WS SCS Site 4 Dam Guadalupe	High Hazard	38 ft	1965	Earth	Texas
York Creek WS SCS Site 5 Dam Hays	High Hazard	41 ft	1963	Earth	Texas
York Creek WS SCS Site 7 Dam Guadalupe	High Hazard	38 ft	1962	Earth	Texas
York Creek WS SCS Site 8 Dam Guadalupe	High Hazard	31 ft	1963	Earth	Texas
Yorker Mill Pond Washington	High Hazard	12 ft	1855	Rockfill	Rhode Island
York Indian Rock Dam York	High Hazard	83 ft	1942	Rockfill	Pennsylvania
York Lake Dam Polk	High Hazard	27 ft	—	Earth	Georgia
Youghiogheny Dam Fayette	High Hazard	—	1944	Earth	Pennsylvania
Young Dam Cole	High Hazard	64 ft	—	Earth	Missouri
Young Kim Lake Dam Pickens	High Hazard	29 ft	1973	Earth	Georgia
Young Lake Dam Rockingham	High Hazard	—	1965	Earth	North Carolina
Young Lake Dam Fannin	High Hazard	37 ft	1971	Earth	Georgia
Young Lake Dam Monroe	High Hazard	19 ft	1996	Earth	Indiana
Young Lake Dam #2 Forsyth	High Hazard	—	—	Earth	North Carolina
Younglife Waste A (Lower) Wasco	High Hazard	41 ft	1986	Earth	Oregon
Younglife Waste B (Middle) Wasco	High Hazard	15 ft	—	Earth	Oregon
Younglife Waste C (Upper) Wasco	High Hazard	15 ft	—	Earth	Oregon
Young Mill Tailings Jefferson	High Hazard	—	1998	Earth	Tennessee
Youngs Creek #1 & 2 Delta	High Hazard	46 ft	1952	Earth	Colorado
Young's Lake Cumberland	High Hazard	26 ft	1993	Earth	North Carolina
Youngs Lake New Inlet Dam King	High Hazard	—	1926	Earth	Washington
Youngs Lake Outlet Dam King	High Hazard	—	1921	Earth	Washington
Youngs Pond Dam Warren	High Hazard	18 ft	1972	Earth	New Jersey
Youngstown Upground Reservoir Mahoning	High Hazard	29 ft	1929	Concrete	Ohio
Youth Camp Lake Dam Bartholomew	High Hazard	36 ft	1945	Earth	Indiana
Yowell Lake Dam Mercer	High Hazard	23 ft	1990	Earth	Missouri
Yseleta Lake Dam Nacogdoches	High Hazard	24 ft	1912	Earth	Texas
Y T Ranch Mesa	High Hazard	33 ft	1911	Earth	Colorado
Yucaipa No. 1 San Bernardino	High Hazard	42 ft	1978	Earth	California
Yucaipa No. 2 San Bernardino	High Hazard	49 ft	1978	Earth	California
Zachariah Lake Dam Lee	High Hazard	40 ft	1950	Earth	Kentucky