Hydroelectric Dams By nsharma6 Jun 20, 1882 Appleton Edison Light Company Dam Jun 20, 1904 Niagra Power Station No.1 Jun 20, 1911 Vemork Hydroelectric Facility Jun 20, 1913 Lock and Dam No.19 Jun 20, 1925 Wilson Dam - USA Jun 20, 1936 Hoover Dam Jun 20, 1942 Grand Coulee Dam Jun 20, 1978 Debdon Dam Jun 20, 1985 Itaipu Dam Jun 20, 1985 Wesington House Electric: Niagra Jun 20, 2008 Three Gores Dam