Hydroelectric Dams

2,099 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Swinging Bridge Sullivan	High Hazard	135 ft	1930	Other	New York
Swofford Pond Lewis	Low Hazard	20 ft	—	Earth	Washington
Sylvan Dike No. 2 Morrison	Low Hazard	8 ft	1913	Earth	Minnesota
Sysladobsis Lake Washington	Low Hazard	9 ft	1861	Earth	Maine
Tabeaud Amador	High Hazard	125 ft	1901	Earth	California
Table Rock Dam Taney	High Hazard	252 ft	1959	Concrete	Missouri
Taftsville Windsor	Low Hazard	18 ft	1910	Concrete	Vermont
Taftville Hydro Dam #4 New London	High Hazard	30 ft	1867	Earth	Connecticut
Talbott Patrick	High Hazard	123 ft	1938	Arch	Virginia
Talcville St. Lawrence	Low Hazard	13 ft	1987	Gravity	New York
Tallassee Shoals Jackson	Low Hazard	37 ft	1986	Gravity	Georgia
Tallulah Falls Rabun	High Hazard	140 ft	1913	Arch	Georgia
Tannery - Dam "A" Jefferson	Significant Hazard	14 ft	1914	Concrete	New York
Tannery Pond Worcester	Low Hazard	10 ft	1936	Masonry	Massachusetts
Target Canyon Lincoln	Low Hazard	30 ft	1941	Earth	Nebraska
Taum Sauk Ps Lower Reynolds	High Hazard	60 ft	1963	Gravity	Missouri
Taum Sauk Ps Upper Reynolds	High Hazard	125 ft	1963	Roller-Compacted Concrete	Missouri
Taylor Barron	Low Hazard	20 ft	1935	Gravity	Wisconsin
Taylor Draw Rio Blanco	High Hazard	71 ft	1984	Earth	Colorado
Taylors Falls Wall Chisago	High Hazard	13 ft	1906	Concrete	Minnesota
Taylorville - North Dam Lewis	Significant Hazard	24 ft	1914	Concrete	New York
Telos Piscataquis	Low Hazard	20 ft	1890	Timber Crib	Maine
Tenkiller Ferry Dam Sequoyah	High Hazard	197 ft	1952	Gravity	Oklahoma
Terminus Dam Tulare	High Hazard	235 ft	1962	Earth	California
Terror Lake Kodiak Island Borough	Low Hazard	193 ft	1984	Rockfill	Alaska
The Dalles Lock and Dam Klickitat	High Hazard	116 ft	1957	Gravity	Oregon
Theodore Roosevelt Maricopa	High Hazard	357 ft	1911	Masonry	Arizona
Theresa Jefferson	Low Hazard	40 ft	1929	Gravity	New York
Thermalito Afterbay Butte	High Hazard	39 ft	1967	Earth	California
Thermalito Diversion Butte	High Hazard	143 ft	1967	Concrete	California
Thermalito Forebay Butte	High Hazard	91 ft	1967	Earth	California
Thief River Falls Pennington	Low Hazard	25 ft	1946	Gravity	Minnesota
Third Marinette Marinette	High Hazard	28 ft	1862	Gravity	Wisconsin
Thompson Falls - Main Channel Dam Sanders	Low Hazard	50 ft	1915	Gravity	Montana
Thompson Lake Oxford	Low Hazard	13 ft	1800	Stone	Maine
Thomson Dam No 1-1/2 Carlton	Low Hazard	10 ft	1907	Earth	Minnesota
Thornapple Rusk	Low Hazard	14 ft	1909	Gravity	Wisconsin
Thorpe Jackson	High Hazard	150 ft	1941	Rockfill	North Carolina
Three Lakes Plumas	Low Hazard	30 ft	1928	Rockfill	California
Three Rivers St. Joseph	High Hazard	16 ft	1917	Gravity	Michigan
Thurlow Elmore	High Hazard	62 ft	1930	Gravity	Alabama
Tie Hack Johnson	High Hazard	110 ft	1997	Concrete	Wyoming
Tiger Creek Afterbay Amador	High Hazard	120 ft	1931	Concrete	California
Tiger Creek Forebay Amador	Low Hazard	33 ft	—	Earth	California
Tiger Creek Regulator Amador	Significant Hazard	110 ft	1931	Concrete	California
Tilden Chippewa	Low Hazard	16 ft	1886	Gravity	Wisconsin
Tillery Stanly	High Hazard	86 ft	1928	Concrete	North Carolina
Timothy Lake Clackamas	High Hazard	100 ft	1956	Earth	Oregon
Tims Ford Dam Franklin	High Hazard	163 ft	1970	Rockfill	Tennessee
Tioga Lake Auxiliary Mono	High Hazard	19 ft	1928	Concrete	California