Hydroelectric Dams

2,099 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Newport Herkimer	Significant Hazard	12 ft	1912	Concrete	New York
New River Channel Dam Cumberland	Low Hazard	13 ft	1911	Concrete	Maine
New Spicer Meadow Tuolumne	High Hazard	265 ft	1989	Other	California
Newton Falls Lower St. Lawrence	Low Hazard	25 ft	1927	Concrete	New York
Newton Falls Upper St. Lawrence	High Hazard	21 ft	1927	Concrete	New York
New Waddell Maricopa	High Hazard	438 ft	1992	Rockfill	Arizona
New York State Dam Saratoga	Low Hazard	21 ft	1840	Concrete	New York
New York State Electric & Gas Corporation Dam Broome	Low Hazard	10 ft	1948	Rockfill	New York
Niagara Roanoke	High Hazard	52 ft	1906	Gravity	Virginia
Niagara Mohawk Power Dam St. Lawrence	Significant Hazard	11 ft	1916	Concrete	New York
Nickajack Dam Marion	High Hazard	81 ft	1967	Concrete	Tennessee
Nimbus Sacramento	High Hazard	87 ft	1955	Concrete	California
Nine Mile Spokane	High Hazard	58 ft	1908	Gravity	Washington
Ninety Nine Islands Cherokee	High Hazard	72 ft	1909	Concrete	South Carolina
Ninth Street Alpena	High Hazard	24 ft	1910	Gravity	Michigan
Noone Mills Hillsborough	Significant Hazard	14 ft	1938	Concrete	New Hampshire
Norfolk Dam St. Lawrence	High Hazard	29 ft	1965	Concrete	New York
Norfork Dam Baxter	High Hazard	216 ft	1944	Concrete	Arkansas
Normandy Dam Coffee	High Hazard	80 ft	1976	Concrete	Tennessee
Normanskill Albany	High Hazard	39 ft	1916	Buttress	New York
Norris Dam Campbell	High Hazard	236 ft	1936	Concrete	Tennessee
North Grant	High Hazard	145 ft	1950	Earth	Washington
North Battle Creek Shasta	High Hazard	47 ft	1909	Rockfill	California
North Canal Diversion Deschutes	High Hazard	33 ft	1906	Concrete	Oregon
North Division Street Dam Cayuga	Significant Hazard	32 ft	1865	Concrete	New York
Northfield Mt. - Main Dam Franklin	High Hazard	145 ft	1973	Rockfill	Massachusetts
North Fork Clackamas	High Hazard	207 ft	1958	Arch	Oregon
North Fork Dam Placer	Significant Hazard	143 ft	1939	Arch	California
North Fork Diversion Alpine	Low Hazard	53 ft	1989	Gravity	California
North Fork Diversion Dam Jackson	Significant Hazard	50 ft	1965	Concrete	Oregon
North Fork Diversion Dam Jackson	High Hazard	45 ft	1928	Concrete	Oregon
North Gorham Cumberland	High Hazard	28 ft	1901	Concrete	Maine
North Hartland Dam Windsor	High Hazard	182 ft	1961	Rockfill	Vermont
North Highlands Muscogee	High Hazard	37 ft	1898	Other	Georgia
North Pelican Oneida	Low Hazard	11 ft	1908	Gravity	Wisconsin
North Troy Orleans	Low Hazard	12 ft	1920	Concrete	Vermont
North Twin Penobscot	High Hazard	35 ft	1934	Earth	Maine
North Twin - Dike 1 Penobscot	Significant Hazard	11 ft	1934	Earth	Maine
North Twin - Dike 2 Penobscot	Significant Hazard	11 ft	1934	Earth	Maine
North Twin - Dike 3 Penobscot	Significant Hazard	15 ft	1934	Earth	Maine
North Twin - Dike 4 Penobscot	Significant Hazard	11 ft	1934	Earth	Maine
North Twin - Dike 5 Penobscot	Significant Hazard	11 ft	1934	Earth	Maine
North Twin - Dike 6 Piscataquis	High Hazard	13 ft	1934	Earth	Maine
North Village Pond Worcester	Low Hazard	13 ft	1914	Masonry	Massachusetts
Norton Pond Essex	Significant Hazard	13 ft	1893	Earth	Vermont
Norway White	High Hazard	30 ft	1923	Earth	Indiana
Norway Point Alpena	High Hazard	43 ft	1924	Gravity	Michigan
Norwood St. Lawrence	High Hazard	24 ft	1928	Gravity	New York
Nottely Dam Union	High Hazard	197 ft	1942	Rockfill	Georgia
Noxon Rapids Sanders	High Hazard	135 ft	1960	Gravity	Montana