EGAT's expressway authority (กทพ.) has extended free tolls on 8 expressway routes, including Chalerm Maha Nakhon, Si Rat, Chalong Rat and Burapha Withi, to 24.00 on 29 September 2026, due to flooding. Plan delivery and staff travel around the free window and watch the road-access updates, since flooded on/off ramps may change routes. Drivers and fleets can avoid toll costs for this period.