At 10:53 hours the Communication Center alerted Station 15 and 4&24 for an automobile fire on the William V. Roth Bridge. A-1 returning from an earlier ambulance run arrived on scene at Route 1 SB in the area of Kirkwood St. Georges Road with the engine compartment involved. Engines 4-5 and 15-5 arrived at 11:04 hours with 4-5 placing 1 line in-service and extinguishing the fire. 4-5 placed the scene under control at 11:24 hours turning the scene over to DSP.