Oklahoma City mayor says 12,000 to 13,000 homes damaged or destroyed by May 20 tornado - Article Photos 518/565

This tractor-trailer was crumpled after it was lifted from the interstate and dropped on US 177 about 20 feet below. A tornado caused extensive damage along I-40 at the junction with US 177 on the west side of Shawnee Sunday evening, May 19, 2013. Photo by Jim Beckel, The Oklahoman.