Hydroelectric Dams

2,099 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Mono Creek Diversion Fresno	Low Hazard	64 ft	1927	Concrete	California
Montello Granite Marquette	High Hazard	24 ft	1914	Concrete	Wisconsin
Moomaws Buena Vista	Low Hazard	20 ft	1842	Gravity	Virginia
Moore Grafton	High Hazard	149 ft	1957	Concrete	New Hampshire
Moores Park Dam Ingham	High Hazard	22 ft	1904	Gravity	Michigan
Moosehead - East Outlet Somerset	Significant Hazard	26 ft	1835	Concrete	Maine
Moosehead - West Outlet Somerset	Significant Hazard	20 ft	1835	Concrete	Maine
Moran Slough Dike Grant	Low Hazard	11 ft	1964	Earth	Washington
Moretown No. 8 Washington	Low Hazard	31 ft	1910	Concrete	Vermont
Morgan Falls Cobb	High Hazard	65 ft	1903	Gravity	Georgia
Mormon Flat Maricopa	High Hazard	224 ft	1924	Concrete	Arizona
Morony Cascade	High Hazard	70 ft	1929	Gravity	Montana
Morris Sheppard Dam Palo Pinto	High Hazard	187 ft	1941	Buttress	Texas
Morrisville Lamoille	Low Hazard	29 ft	1924	Gravity	Vermont
Morrow Kalamazoo	High Hazard	26 ft	1941	Gravity	Michigan
Morrow Point Montrose	High Hazard	400 ft	1968	Concrete	Colorado
Moshier Herkimer	High Hazard	93 ft	1930	Earth	New York
Mosinee Marathon	Low Hazard	22 ft	1910	Gravity	Wisconsin
Mossyrock Lewis	High Hazard	366 ft	1968	Arch	Washington
Mottville St. Joseph	High Hazard	23 ft	1920	Gravity	Michigan
Mountain Island Gaston	High Hazard	140 ft	1923	Gravity	North Carolina
Mount Hope Lake Dam Morris	High Hazard	18 ft	1944	Earth	New Jersey
Moxie Somerset	Significant Hazard	19 ft	1925	Concrete	Maine
Moyie Boundary	High Hazard	62 ft	1949	Gravity	Idaho
Mt. Elbert Forebay Saddle Dike Lake	High Hazard	22 ft	1977	Earth	Colorado
Mt Morris Power Dam Livingston	Significant Hazard	30 ft	1916	Concrete	New York
Muck Valley Afterbay Lassen	Low Hazard	15 ft	1990	Earth	California
Muddy Run Main Dam Lancaster	High Hazard	260 ft	1967	Rockfill	Pennsylvania
Muddy Run Recreation Dam Lancaster	Low Hazard	90 ft	1967	Rockfill	Pennsylvania
Murphys Afterbay Calaveras	High Hazard	43 ft	1953	Earth	California
Murphys Forebay West Calaveras	High Hazard	67 ft	1953	Earth	California
Murray Lock and Dam Pulaski	Significant Hazard	23 ft	1969	Concrete	Arkansas
Mystic Lake Stillwater	High Hazard	45 ft	1927	Arch	Montana
Nacimiento San Luis Obispo	High Hazard	210 ft	1956	Earth	California
Nacoochee Rabun	High Hazard	75 ft	1926	Gravity	Georgia
Nantahala Macon	High Hazard	250 ft	1942	Rockfill	North Carolina
Narrows Dam Pike	High Hazard	183 ft	1950	Gravity	Arkansas
Neal Shoals Union	Low Hazard	25 ft	1905	Concrete	South Carolina
Nekoosa Wood	Low Hazard	32 ft	1889	Gravity	Wisconsin
Nesbitt Lackawanna	High Hazard	101 ft	1903	Stone	Pennsylvania
Neshonoc La Crosse	Low Hazard	18 ft	1914	Concrete	Wisconsin
Nesowadnehunk Piscataquis	Low Hazard	12 ft	1930	Concrete	Maine
New Bullards Bar Yuba	High Hazard	645 ft	1970	Concrete	California
Newbury Orange	Significant Hazard	20 ft	1912	Concrete	Vermont
New Hogan Dam Calaveras	High Hazard	155 ft	1963	Rockfill	California
New Home Franklin	Low Hazard	9 ft	1936	Gravity	Massachusetts
New Melones Calaveras	High Hazard	578 ft	1979	Rockfill	California
New Mills Kennebec	High Hazard	22 ft	1885	Masonry	Maine
Newport Orleans	High Hazard	22 ft	1936	Masonry	Vermont
Newport Page	Low Hazard	28 ft	1923	Buttress	Virginia