Thailand Extends M6 Motorway Trial Period to Ease Flood-Related Traffic
The Department of Highways has extended the free trial operation of the M6 motorway between Bang Pa-in and Pak Chong until September 29, 2026, to help motorists bypass flood-affected routes.
According to a report by Khaosod Online Thailand, the Department of Highways under the Ministry of Transport has announced a special extension for the trial operation of the M6 motorway (Bang Pa-in–Pak Chong section).
Previously, this 110-kilometer stretch was only open for free trial use from Friday to Sunday. However, to assist travelers and alleviate traffic congestion caused by ongoing flooding, the route will now remain open continuously until midnight on Tuesday, September 29, 2026. This measure is intended to provide an alternative route for those avoiding flooded sections of Phahonyothin Road (between Bang Pa-in and Saraburi) and Mittraphap Road (between Saraburi and Kaeng Khoi).
For residents and travelers, this extension offers a vital relief valve for navigating the central and northeastern regions during the current weather crisis. Motorists are advised that this is a temporary measure; the motorway will revert to its standard trial schedule after the deadline passes at midnight on September 29. As this is a dynamic situation, travelers should monitor official updates from the Department of Highways regarding road conditions and potential further changes to traffic management. It remains to be confirmed if the trial period will be extended further should flood conditions persist beyond the current deadline.
