Don Muang Tollway is a 12km-long elevated expressway connecting the Don Muang International Airport and Bangkok city along Vibhavadi Rangsit Highwayand it extends 10km further to Rangsit town, north of the airport. It is also connected to First Stage Expressway System at Din Daeng. The first section of tollway from Din Daeng to Laksi intersection was completed in 198x. The extension from Laksi to Rangsit via the airport was completed in 1999. The elevated road section between Laksi and the airport is supported by bored piles with base grouting while the remaining sections are supported by driven piles.