Hydroelectric Dams

2,099 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Drum Afterbay Placer	Low Hazard	102 ft	1968	Concrete	California
Drum Forebay Placer	High Hazard	65 ft	1913	Earth	California
Dry Falls Grant	High Hazard	63 ft	1949	Earth	Washington
Dubay Portage	High Hazard	40 ft	1942	Concrete	Wisconsin
Duncan Creek Diversion Placer	Low Hazard	20 ft	1965	Concrete	California
Dundee Cumberland	High Hazard	50 ft	1913	Concrete	Maine
Dundee Passaic	Low Hazard	16 ft	1854	Masonry	New Jersey
Dunkirk Dane	Low Hazard	20 ft	1915	Gravity	Wisconsin
Dutch Flat Afterbay Nevada	Low Hazard	165 ft	1965	Rockfill	California
Dutch Flat Forebay Nevada	Low Hazard	77 ft	1966	Earth	California
Dwight Hampden	Significant Hazard	24 ft	1860	Masonry	Massachusetts
Dworshak Dam Clearwater	High Hazard	—	1973	Concrete	Idaho
Eagle Lewis	Low Hazard	22 ft	1915	Concrete	New York
Eagle and Phoenix Mill Lake Dam Muscogee	Low Hazard	14 ft	1851	Stone	Georgia
Eagle Canyon Canal Diversion Tehama	Low Hazard	11 ft	1910	Concrete	California
Eagle Lake Hancock	Low Hazard	8 ft	1935	Concrete	Maine
Early Intake Tuolumne	Low Hazard	56 ft	1925	Arch	California
East Barnet Caledonia	Low Hazard	12 ft	1984	Concrete	Vermont
East Canada Lake Dam Herkimer	High Hazard	65 ft	1924	Earth	New York
East Cottonwood Canyon Lincoln	Low Hazard	26 ft	1941	Earth	Nebraska
East Fork Diversion Garfield	Low Hazard	29 ft	1958	Earth	Utah
East Fork (Tannasee Creek) Jackson	High Hazard	140 ft	1955	Earth	North Carolina
East Fork (Tannasee Creek) - Dam, Gated Spillway and 2 Fuseplugs Jackson	High Hazard	19 ft	1955	Earth	North Carolina
Eastman Falls Merrimack	Significant Hazard	43 ft	1937	Concrete	New Hampshire
East Millinocket Penobscot	Low Hazard	26 ft	1907	Concrete	Maine
East Norfolk St. Lawrence	High Hazard	16 ft	1928	Gravity	New York
Easton Intake Aroostook	Low Hazard	8 ft	1961	Concrete	Maine
East Phillips Gosper	Low Hazard	63 ft	1941	Earth	Nebraska
Eau Galle Dunn	Low Hazard	31 ft	1913	Buttress	Wisconsin
Eau Pleine Marathon	High Hazard	45 ft	1937	Gravity	Wisconsin
Echo Summit	High Hazard	158 ft	1930	Earth	Utah
Echo Lake El Dorado	High Hazard	12 ft	1992	Roller-Compacted Concrete	California
Echo Pond Dam Orleans	Low Hazard	16 ft	1922	Concrete	Vermont
Edinburg Dam Shenandoah	Unknown	16 ft	—	Buttress	Virginia
Edmondson Dam Washington	Unknown	47 ft	—	Gravity	Virginia
Eel Weir St. Lawrence	Low Hazard	23 ft	1928	Buttress	New York
Eel Weir Cumberland	High Hazard	22 ft	1879	Masonry	Maine
Effley Lewis	High Hazard	30 ft	1902	Concrete	New York
Egin Canal Diversion Fremont	Low Hazard	7 ft	1903	Gravity	Idaho
Eklutna Dam Municipality of Anchorage	High Hazard	41 ft	1965	Earth	Alaska
Elderberry Forebay Los Angeles	Low Hazard	179 ft	1972	Earth	California
El Dorado Forebay El Dorado	High Hazard	91 ft	1923	Earth	California
Electra Afterbay Calaveras	Low Hazard	30 ft	1948	Concrete	California
Electra Diversion Amador	Low Hazard	45 ft	—	Concrete	California
Elephant Butte Sierra	High Hazard	301 ft	1915	Concrete	New Mexico
Elkhart Elkhart	High Hazard	25 ft	1903	Gravity	Indiana
Elk Rapids Antrim	Low Hazard	21 ft	1916	Gravity	Michigan
Ellsworth Hancock	High Hazard	62 ft	1907	Concrete	Maine
Elmer Lewis	Low Hazard	23 ft	1917	Concrete	New York
Emeryville St. Lawrence	Low Hazard	25 ft	1959	Gravity	New York