SOUTH FAYETTE TOWNSHIP, Pa. (WPXI)— A man is dead after he was hit by a truck tractor at a construction site in South Fayette Township. Allegheny County dispatchers say the accident happened on Saturday at around 12:58 p.m. on Stonegate Drive. Police say the man was loading a flatbed trailer when the truck tractor backed into him. The Allegheny County medical examiner said Lewis Alling, 59, was the man who was hit. He died in the hospital. A Columbia Gas spokesperson said a gas line was also damaged. The driver of the truck was from a third party and did not work for Columbia Gas. Crews turned off the gas leading to the damaged line, making the area safe. They will make permanent repairs after the police are done investigating.