Wilbur Dam, Tennessee Wikimedia Commons Completed on the Watauga River in 1912, Wilbur Dam was among Tennessee’s first major hydroelectric developments. 1 Dam, Tennessee Wikimedia Commons Ocoee No. 2 Dam, Tennessee Wikimedia Commons Constructed in 1913, Ocoee No. Great Falls Dam, Tennessee Wikimedia Commons Great Falls Dam was completed on the Caney Fork River in 1916 and began operating in 1917. Wilson Dam, Alabama Wikmedia Commons Built across the Tennessee River between 1918 and 1925, Wilson Dam dwarfed many earlier projects.