Was there yesterday. No 5th wheel. Also, any DRW truck is a $15 fee to use the tunnel. Traffic has to stop one way for wide vehicles to pass with escort.Prohibited VehiclesVehicles over 13 feet 1 inch tall, Semi-trucks, vehicles carrying hazardous materials, vehicles weighing more than 50,000 pounds, single vehicles over 40 feet long, combined vehicles over 50 feet long. All Bicycles. Pedestrians.