Hydroelectric Dams

2,099 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Assabet Middlesex	Significant Hazard	13 ft	1921	Masonry	Massachusetts
Atlas Feed Mill Polk	Significant Hazard	14 ft	1874	Gravity	Wisconsin
Aug. Canal Left Embkmnt + Structures (Above Bulkhead Structure) Columbia	Significant Hazard	26 ft	1847	Earth	Georgia
Auglaize Hydro Defiance	Low Hazard	23 ft	1913	Gravity	Ohio
Augusta Diversion Dam Columbia	Significant Hazard	12 ft	1857	Masonry	Georgia
Automatic Kennebec	Low Hazard	33 ft	1924	Concrete	Maine
Au Train Alger	High Hazard	31 ft	1910	Gravity	Michigan
Avalon Rockingham	Low Hazard	30 ft	1900	Gravity	North Carolina
Avery Belknap	Low Hazard	13 ft	1947	Concrete	New Hampshire
Ayers Island Grafton	Significant Hazard	80 ft	1924	Concrete	New Hampshire
Aziscohos Oxford	High Hazard	74 ft	1911	Buttress	Maine
Bad Creek Main Dam Oconee	High Hazard	360 ft	1991	Earth	South Carolina
Bagnell Miller	High Hazard	148 ft	1931	Gravity	Missouri
Bailes Old Millpond Dam Guilford	Low Hazard	—	—	Earth	North Carolina
Bakers Falls Orleans	Low Hazard	14 ft	1925	Concrete	Vermont
Balch Afterbay Fresno	High Hazard	165 ft	1928	Concrete	California
Balch Diversion Fresno	High Hazard	135 ft	1927	Concrete	California
Ballard Mill Franklin	Significant Hazard	8 ft	1901	Earth	New York
Ball Mountain Dam Windham	High Hazard	247 ft	1961	Earth	Vermont
Balsam Meadow Forebay Main Fresno	High Hazard	123 ft	1986	Rockfill	California
Baltic Mills Dam Grafton	Low Hazard	21 ft	1919	Concrete	New Hampshire
Bantam Hydro Dam Litchfield	Significant Hazard	20 ft	1945	Concrete	Connecticut
Barber Ada	Significant Hazard	26 ft	1904	Timber Crib	Idaho
Barbos Lake Bennington	Low Hazard	14 ft	1957	Earth	Vermont
Barker Meadow Boulder	High Hazard	177 ft	1909	Concrete	Colorado
Barker Mill Lower Androscoggin	Low Hazard	30 ft	1874	Concrete	Maine
Barker Mill Upper Androscoggin	Low Hazard	24 ft	1987	Masonry	Maine
Barkley Lock and Dam Lyon	High Hazard	—	1966	Gravity	Kentucky
Bar Mills York	Low Hazard	25 ft	1956	Concrete	Maine
Barrier Dam Lewis	Low Hazard	12 ft	1968	Concrete	Washington
Bart Lake Dam City and Borough of Juneau	Low Hazard	31 ft	2009	Rockfill	Alaska
Bartletts Ferry, Main Dam Harris	High Hazard	150 ft	1926	Gravity	Georgia
Barton Dam Washtenaw	High Hazard	24 ft	1913	Earth	Michigan
Barton Village Orleans	Low Hazard	17 ft	1949	Masonry	Vermont
Bass Lake Ravalli	High Hazard	35 ft	1887	Earth	Montana
Bath County P S Lower Recreation Pond Dam Bath	Low Hazard	19 ft	1984	Rockfill	Virginia
Bath County P S Lower Reservoir - Lower Dam Bath	High Hazard	135 ft	1984	Earth	Virginia
Bath County P S Lower Sediment Dam Bath	Low Hazard	27 ft	1984	Rockfill	Virginia
Bath County P S Middle Sediment Dam Bath	Low Hazard	26 ft	1984	Rockfill	Virginia
Bath County P S Upper Recreation Pond Dam Bath	Low Hazard	26 ft	1984	Rockfill	Virginia
Bath County P S Upper Reservoir - Upper Dam Bath	High Hazard	460 ft	1984	Earth	Virginia
Batson River York	Low Hazard	18 ft	1900	Concrete	Maine
Bear Creek Jackson	High Hazard	215 ft	1954	Earth	North Carolina
Bear Creek Diversion Fresno	Low Hazard	55 ft	1927	Concrete	California
Bear Dam Mariposa	High Hazard	85 ft	1954	Earth	California
Beardsley Tuolumne	High Hazard	278 ft	1957	Earth	California
Beardsley Afterbay Tuolumne	Low Hazard	33 ft	1958	Rockfill	California
Bear Swamp - North Dike Franklin	Low Hazard	155 ft	1974	Rockfill	Massachusetts
Bear Valley Sh Alpine	Significant Hazard	43 ft	1975	Earth	California
Beatties Mill Dam Passaic	Low Hazard	12 ft	1932	Masonry	New Jersey