Repairs to the massive sinkhole that opened in front of Vajira Clinic in Bangkok’s Dusit district are moving ahead on schedule, with the Mass Rapid Transit Authority of Thailand (MRTA) setting a target to complete the restoration by October 8.
MRTA governor Gardphajon Udomdhammabhakdi said that construction teams began pouring reinforced concrete on Friday night and continued into Saturday, pausing intermittently to allow the material to harden properly. By early Saturday morning, around 200 cubic metres of concrete had been poured into the site to stabilise the ground.
Officials outlined a tight repair timeline, beginning with debris removal scheduled for Sunday and sand filling planned for Monday. Surface restoration of Samsen Road, which was torn open by the collapse last Wednesday, is expected to be completed within two weeks.
Bangkok governor Chadchart Sittipunt confirmed that a 10-millimetre rainfall on Friday night had not disrupted repair work, crediting the installation of additional pumps and expanded drainage capacity.
Temporary barriers and backup generators have also been deployed to strengthen protections against soil movement and ensure safety around the site.
Authorities reported a minor landslide during operations, but it caused no damage to surrounding structures. Ground-penetrating radar has been used to survey the area and confirmed there are no underground cavities beneath the MRT Purple Line construction zone adjacent to the sinkhole.
Prime Minister Anutin Charnvirakul has personally visited the site several times, including a late-night inspection that was unannounced, to oversee progress and encourage workers on the ground.
Speaking on Saturday, Mr. Anutin said the repairs are on schedule and emphasised that every step of the process must meet the highest safety standards. He added that all high-risk areas have already been evacuated, and reinforced concrete has been laid to stabilise the affected ground.
Vajira Hospital, which suspended some services following the incident, reopened on Friday with access restricted to the main gate on Samsen Road. Hospital officials said the pavement remains closed and construction areas remain off-limits to the public.
Governor Chadchart said the MRTA, Bangkok Metropolitan Administration, and contractors are working together to ensure the road can reopen quickly while maintaining safety. He stressed that all parties involved are closely monitoring the repair operations to restore public confidence in the area.
