Summary: A major traffic accident involving a single vehicle and a semi-truck occurred on Highway 138 in San Bernardino County, California. The incident resulted in significant vehicle damage and at least one immediate patient requiring extrication. The westbound lanes of Highway 138 were blocked due to debris, and traffic control was requested. Emergency services, including an airship (Reach 13), were dispatched to the scene. The highway was shut down at Phelan Road to facilitate emergency response and extrication. The extrication was completed, and some units were released from the scene as the situation was brought under control.