STOCKTON — A 68-year-old man died Monday morning after crashing through a gate at the entrance to the Burlington Northern Santa Fe Railway yard in southeast Stockton.The Valley Springs resident, whose identity was not released pending notification of family by the San Joaquin County Coroner’s Office, was driving a 2000 Oldsmobile Alero at a high rate of speed eastbound on the private driveway approach to the rail facility at 6540 S.