October 6, 2026 4;30 p.m. A SUV and trailer jackknifed on Monday afternoon, leading to a big traffic backup on Interstate 5 southbound in the Roberts Mountain area. An Oregon State Police report said at 1:35 p.m. a trooper was dispatched to the accident about nine miles south of Roseburg near milepost 116. The driver was apparently going too fast for the hill she was on and attempted to slow down. In doing so, her vehicle swerved into the left-…