The Asoke Overpass at Bangkok’s Phetchburi-Ratchadapisek Intersection will be closed for maintenance from March 9 to September 4, a source at the Bangkok Metropolitan Administration said on Thursday.

The six-month-long closure will allow major strengthening of the 40-year-old overpass, which has undergone numerous minor repairs before, to ensure it can continue to support large trucks, the source said.

Motorists are advised to use the five traffic lanes underneath the overpass.