Supoj Sermsap, chief of the Prachuap Khiri Khan Highway office, said he had coordinated with the construction contractor to suspend work from Bang Sa Phan district to Muang district.
As part of the repairs, one side of road is closed and the other section divided into two lanes for southbound and Bangkok-bound traffic.
Supoj said he had told contractors to make all four lanes available as Artiwara’s group runs through the area as his supporters were expected to line road to provide moral support.