Hydroelectric Dams

2,099 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Lake Wood Dam Gonzales	High Hazard	42 ft	1931	Earth	Texas
Lake Zumbro Wabasha	High Hazard	55 ft	1919	Gravity	Minnesota
Lanesboro Fillmore	High Hazard	34 ft	1868	Other	Minnesota
Langdale Harris	Low Hazard	15 ft	1924	Masonry	Georgia
Laurel Dam Laurel	High Hazard	—	1973	Rockfill	Kentucky
Lawrence Lake Marquette	Low Hazard	35 ft	1845	Gravity	Wisconsin
Lay Coosa	High Hazard	130 ft	1914	Gravity	Alabama
Lcra Inks Dam Burnet	High Hazard	97 ft	1938	Gravity	Texas
Leaburg Lane	Low Hazard	20 ft	1930	Concrete	Oregon
Lebanon Dam Linn	Low Hazard	8 ft	1925	Concrete	Oregon
Ledgemere York	Significant Hazard	25 ft	1905	Timber Crib	Maine
Lee Creek Crawford	High Hazard	48 ft	1992	Gravity	Arkansas
Leesville Pittsylvania	High Hazard	90 ft	1963	Gravity	Virginia
Lefferts Pond Dam Rutland	Low Hazard	16 ft	1909	Stone	Vermont
Lefferts Pond West Rutland	Low Hazard	17 ft	1900	Concrete	Vermont
Lemolo No 1 Douglas	High Hazard	120 ft	1955	Rockfill	Oregon
Lemolo No 2 Forebay Douglas	Low Hazard	30 ft	1956	Earth	Oregon
Lemon La Plata	High Hazard	284 ft	1962	Rockfill	Colorado
Leonards Mill Penobscot	Low Hazard	7 ft	1796	Timber Crib	Maine
Lermond Pond Knox	Significant Hazard	12 ft	1850	Concrete	Maine
Lewis San Miguel	Low Hazard	16 ft	1904	Rockfill	Colorado
Lewis Smith Walker	High Hazard	300 ft	1961	Rockfill	Alabama
Lewiston Niagara	High Hazard	155 ft	1963	Concrete	New York
Lewiston Falls Androscoggin	Low Hazard	27 ft	1865	Masonry	Maine
Lewisville Dam Denton	High Hazard	130 ft	1955	Earth	Texas
Libby Dam Lincoln	High Hazard	—	1973	Gravity	Montana
Lighthouse Hill Oswego	High Hazard	47 ft	1930	Concrete	New York
Lighting Plant Waupaca	Low Hazard	25 ft	1927	Gravity	Wisconsin
Link River Diversion Klamath	High Hazard	22 ft	1921	Concrete	Oregon
Linville Burke	High Hazard	160 ft	1919	Earth	North Carolina
Little Chute Locks and Dam Outagamie	Significant Hazard	—	1932	Concrete	Wisconsin
Little Dam Caldwell	High Hazard	—	—	Concrete	North Carolina
Little Dickey York	Low Hazard	14 ft	1970	Concrete	Maine
Little Falls Morrison	Significant Hazard	30 ft	1914	Gravity	Minnesota
Little Falls Dam Stevens	High Hazard	—	1910	Concrete	Washington
Little Falls Spillway Dam Lincoln	Low Hazard	—	1910	Gravity	Washington
Little Falls State Dam - North Herkimer	Significant Hazard	6 ft	1894	Gravity	New York
Little Goose Lock and Dam Columbia	High Hazard	—	1970	Concrete	Washington
Little Grass Valley Plumas	High Hazard	184 ft	1961	Earth	California
Little Hell Creek Diversion Larimer	Low Hazard	43 ft	1951	Rockfill	Colorado
Little Plum Creek Dawson	Low Hazard	8 ft	1941	Earth	Nebraska
Little Quinnesec Falls Marinette	High Hazard	22 ft	1900	Gravity	Wisconsin
Little Quinnesec Falls Dam Dickinson	High Hazard	65 ft	1916	Gravity	Michigan
Little River Montgomery	Low Hazard	23 ft	1919	Gravity	North Carolina
Little St Germain Vilas	Low Hazard	9 ft	1908	Gravity	Wisconsin
Little West Snell Lincoln	Low Hazard	26 ft	1941	Earth	Nebraska
Livermore Falls Androscoggin	Low Hazard	22 ft	1908	Concrete	Maine
Livingston San Jacinto	High Hazard	90 ft	1969	—	Texas
L. L. Anderson Placer	High Hazard	231 ft	1965	Earth	California
Lloyd Shoals Jasper	High Hazard	100 ft	1911	Gravity	Georgia