About 2:40 p.m., c.d.t., on October 12, 1981 a truck tractor-pole semitrailer, laden with sixteen 75- to 80-foot pine logs was southbound on U.S. Route 45, about 1 mile south of Waynesboro, Mississippi. A schoolbus occupied by the driver and 49 students was also southbound following behind the truck. As the truck approached the Industrial Park Road, it moved into a right turn lane, decelerated, and initiated a 125o right turn. The overlength logs swung leftward across the southbound through traffic lane and Into the path of the overtaking schoolbus. The schoolbus struck the swinging logs, traveled forward to the right, struck the extreme front end of an eastbound automobile, which was stopped on Industrial Park Road at the intersection, and then struck and overrode a Utility pole In the southwest quadrant of the intersection. Three bus passengers were killed, and 18 bus passengers and the driver were injured.