A Ridgway man has been charged with sexually assaulting a teenager at the Ridgway Fireman’s Carnival in July. Police say that 40 year-old Paul Walls of Ridgway pulled a 13 year-old girl behind a carnival booth and allegedly sexually assaulted her. Walls is charged with indecent assault, felony corruption of minors and harassment. He is scheduled for a preliminary hearing on November 18.