Progress on Sam Sen road sinkhole: Road expected to reopen in 6 days
Despite last night’s rain, it hasn’t hindered progress. Authorities continue with sand filling, and the road is expected to reopen as usual on October 9, 2025.
Bangkok Governor Chadchart Sittipunt visited the site of the sinkhole on Sam Sen Road in front of the entrance to Vajira Hospital in the Dusit district to follow up on the progress on Friday (October 3). He reported that around 5am on the same day, approximately 23 mm of rain had fallen, causing minor flooding in the collapsed area.
Regarding the current progress, sand has been added, and temporary support structures have been installed for the Sam Sen Police Station building. Some minor soil subsidence occurred due to the rain, and authorities and experts will evaluate the next steps. Overall, the work is progressing as planned, and the Bangkok team is prepared to pump water to manage the rainfall situation, as per the instructions from the Mass Rapid Transit Authority (MRTA).
As for the work updates, about 1,300 cubic metres of sand were added yesterday, bringing the total sand volume to approximately 3,500 cubic metres. Concrete slabs in the sinkhole area have been broken down, and some sand has been pushed under the Sam Sen Police Station. Additionally, temporary support (short piles) has been added for further stability.
The Department of Disaster Prevention and Mitigation continues to monitor the building's movement with cameras, but no significant movement has been detected, and everything remains normal.
As for the reopening of Sam Sen Road in front of Vajira Hospital, sand filling is expected to be completed by October 4-5, 2025. After that, the sand will be compacted and a new road layer will be built, with the road expected to be fully operational by October 9, 2025.
Ampan Vimonvattana, Deputy Dean of the Faculty of Medicine at Vajira Hospital, Navamindradhiraj University shared that on October 1 and 2, the hospital saw a significant number of patients due to the one-week anniversary of the road collapse. Many patients returned after rescheduling their appointments. Over 5,000 patients visited the hospital, including both scheduled and walk-in patients. Some arrived by private car.
For patient transport, Vajira Hospital provided services to various locations such as Sri Yan, Sirindhorn, and in front of St. Gabriel's School. Additionally, hospital security staff helped arrange taxis for visitors.
