PORTLAND, Ore. - Debris are cleared from the flat deck barge Davy Crockett in this time lapse video covering a 12 hour period of Feb. 10th, 2011. The Davy Crockett, a converted Navy liberty ship built in 1942 began leaking oil into the Columbia River (Ore. Wash. Border) during a civilian scrap and salvage operation conducted by its owner. U.S. Coast Guard video by Petty Officer 2nd Class Eric J. Chandler.