On the night of July 19, 2006, Alexander Dennis coach 224 on the "Deuce" service was deadheading north on Interstate 15. A tire failed and the bus went through an opening in the median barrier rail that had been removed for construction access. The coach continued through the median and over a barrier on the southbound side of the Interstate. The coach was spinning clockwise when it was hit by a tractor trailer, which caused the bus to spin the other way and collide again with the trailer before coming to a rest. Due to the size of the cleanup, and the need to investigate the accident, the road was not reopened until approximately 10:00 am the following morning. The driver of tractor trailer was killed in the accident. The passenger in the tractor trailer was unrestrained at the time of the accident, and was severely injured. The driver of the coach was severely injured, and partially disabled.