Hydroelectric Dams

2,099 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Wilson Road Dike St. Lawrence	Low Hazard	15 ft	1958	Earth	New York
Wilson Stream Piscataquis	Low Hazard	36 ft	1920	Concrete	Maine
Wilsonville Pike	High Hazard	68 ft	1926	Concrete	Pennsylvania
Winfield Locks and Dam Putnam	Significant Hazard	—	1937	Concrete	West Virginia
Winooski No. 8 Washington	Low Hazard	31 ft	1985	Concrete	Vermont
Winter Sawyer	Low Hazard	9 ft	1952	Gravity	Wisconsin
Winton Dyke No. 2 Lake	Low Hazard	7 ft	1923	Earth	Minnesota
Wire and Nail Factory Ozaukee	Low Hazard	28 ft	1934	Arch	Wisconsin
Wirtz Dam Burnet	High Hazard	118 ft	1951	Earth	Texas
Wisconsin Rapids Wood	Low Hazard	34 ft	1843	Gravity	Wisconsin
Wise Forebay Placer	High Hazard	20 ft	1913	Earth	California
Wishon Auxiliary No. 1 Fresno	Significant Hazard	26 ft	1958	Concrete	California
Wishon Forebay Madera	Low Hazard	15 ft	1896	Earth	California
Wissota Chippewa	High Hazard	68 ft	1917	Gravity	Wisconsin
Wolcott Lamoille	High Hazard	48 ft	1920	Concrete	Vermont
Wolf Creek Dam Russell	High Hazard	—	1951	Gravity	Kentucky
Wolf Creek Lake Dam Jackson	High Hazard	—	1955	—	North Carolina
Woodland Washington	High Hazard	46 ft	1906	Concrete	Maine
Woodside Lamoille	Low Hazard	22 ft	1895	Gravity	Vermont
Woodsville Grafton	Significant Hazard	12 ft	1827	Concrete	New Hampshire
Woodward Stanislaus	High Hazard	58 ft	1918	Earth	California
Woonsocket Falls Dam Providence	Low Hazard	21 ft	1960	Concrete	Rhode Island
Woronoco - South Dam Hampden	Low Hazard	25 ft	1938	Concrete	Massachusetts
Worumbo Androscoggin	Low Hazard	17 ft	1988	Concrete	Maine
Wrightsville Washington	High Hazard	115 ft	1935	Earth	Vermont
Wylie York	High Hazard	119 ft	1925	Gravity	South Carolina
Wyman Somerset	High Hazard	155 ft	1930	Earth	Maine
Wynoochee Grays Harbor	High Hazard	175 ft	1972	Gravity	Washington
Wyre - Wynd New London	Low Hazard	21 ft	1913	Masonry	Connecticut
Yadkin Falls Montgomery	High Hazard	74 ft	1919	Gravity	North Carolina
Yadkin Narrows Stanly	High Hazard	201 ft	1917	Gravity	North Carolina
Yahuecas Dam Adjuntas	High Hazard	90 ft	1956	Gravity	Puerto Rico
Yale Cowlitz	High Hazard	323 ft	1953	Earth	Washington
Yaleville St. Lawrence	Low Hazard	12 ft	1914	Concrete	New York
Yards Creek Auxiliary Reservoir Dam Warren	Low Hazard	22 ft	1965	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
Yates Elmore	High Hazard	87 ft	1928	Gravity	Alabama
Yellowtail Big Horn	High Hazard	491 ft	1966	Concrete	Montana
Yelm Canal Dike Thurston	High Hazard	35 ft	1930	Earth	Washington
Yonah Oconee	High Hazard	90 ft	1925	Gravity	Georgia
York Merrimack	Low Hazard	10 ft	1967	Concrete	New Hampshire
York Haven Main Dam Dauphin	Low Hazard	10 ft	1904	Concrete	Pennsylvania
Youghiogheny Dam Fayette	High Hazard	—	1944	Earth	Pennsylvania
Youngs Lake Aroostook	Low Hazard	9 ft	1915	Concrete	Maine