A bizarre accident took a womans life near Chappell Tuesday. The Nebraska State Patrol says 53 year old Robyn Pittman was killed when a set of wheels came off a semis trailer and hit her as she talked with two people parked along I-80. The trailer was hauling old concrete from road construction when the wheels came loose, crossed the median, and hit a parked Department of Roads truck and Pittman. Forty-two-year-old Anthony Armer of Bridgeport was in the parked DOR truck talking with 45-year-old Scott Herdt of North Platte and Pittman when the accident happened. The two men were injured. The accident happened just before 3:30 Tuesday afternoon, eight miles east of Chappell.