The final piece of the derelict barge Davy Crockett will be removed from the Columbia River on Thursday. Shawn Eggert, with the Coast Guard, says a large piece of metal remains on the river bottom. The 431-foot former World War II Liberty Ship sank in the Columbia east of Vancouver last January. Nearly $19-million has been spent cutting it apart and sending the metal away for recycling. The money comes from oil companies that pay into a recovery fund for oil spills.