This aerial photo of the Kentucky Lock Addition project taken April 26, 2013, in Grand Rivers, Ky., shows construction of a new 1200-foot lock landward of the existing 600-foot lock and the relocated highway and railroad bridges downstream of the dam. The upstream-bound split barge tow will be able to lock through as a single tow when the new lock is completed by the U.S. Army Corps of Engineers Nashville District in partnership with the Tennessee Valley Authority.