Massive Sinkhole Disrupts Bangkok’s Dusit District, Hundreds of Households Affected

Bangkok, Thailand – A massive sinkhole opened up on Samsen Road in Dusit district on September 24, causing severe damage to infrastructure and disrupting daily life for local residents. The collapse has been linked to ongoing metro tunnel construction beneath the area.

According to ThaiPBS, more than 500 households in the Suan Oi community lost access to running water for over 10 hours after a major 1.5-meter-wide water pipe burst due to the ground subsidence.

Emergency Response in Dusit District

Authorities rushed to provide relief:

• Water trucks were dispatched to supply drinking water.

• Ten 1,000-liter tanks were installed across affected neighborhoods.

• A support center was set up outside Vajira Hospital’s emergency department, one of the key facilities impacted.

Bangkok’s waterworks authority has begun installing a temporary bypass pipeline to restore supply for hospitals and residents starting September 25.

Vehicles Trapped, Safety Concerns Rise

Rescue operations faced challenges as several vehicles—including workers’ trucks and a police pickup—were either trapped or plunged into the sinkhole, estimated to be more than 50 meters deep.

Heavy rainfall has heightened fears of further soil collapse, making recovery efforts more complex. Fortunately, officials confirmed no casualties or missing persons.

Experts: Not a Natural Disaster

Geological experts and Thailand’s Ministry of Natural Resources have ruled out natural causes, identifying tunnel cracks from metro construction as the primary reason.

The affected area sits on a thick 25-meter clay layer topped with road fill. When the tunnel fractured, soil slipped downward, and pressure from the broken water main accelerated the collapse, leading to a rapid and widespread road failure.

Authorities Promise Compensation and Stricter Oversight

A 100-meter radius around the sinkhole remains sealed off, with structural inspections underway for nearby buildings. Residents have been urged to report any signs of further subsidence.

The Mass Rapid Transit Authority of Thailand (MRTA) and Bangkok’s city government have pledged compensation for households and businesses impacted. Dusit district has also launched an online support channel for claims.

The incident highlights ongoing concerns about urban infrastructure safety as the city expands its Purple Line metro project. Experts warn the disaster underscores the urgent need for stricter monitoring of construction quality in densely populated central Bangkok.