The underpass will be closed from 10pm to 5am both tonight (May 24) and tomorrow night (May 25), the Phuket Highway Office said in an announcement.
The temporary shutdown is to facilitate cleaning operations, vacuuming of dust and debris, and repair of the tunnel’s lighting system to ensure safety and efficiency for all road users, the Phuket Highways Office said.
The Phuket Highways Office asked the public to plan alternative routes during these hours and apologised for any inconvenience caused.
Motorists are advised to follow traffic signs and detours in place during the maintenance period.