11 hours ago, angryguy said:

Well they built bangkok on mud didnt they? What did they think would happen 

My guess would be that "they" expected daft comments such as yours.

UPDATE
Police Warn of Further Collapse Risk on Samsen Road

 

Pictures courtesy of Amarin

 

Bangkok authorities have warned of a potential second collapse on Samsen Road after a massive subsidence created a large cavity outside Vajira Hospital and the Samsen Police Station on September 24. Thermal imaging carried out by police investigators revealed high moisture levels beneath the ground, raising concerns of further instability. Officials said the soil volume missing beneath the road was extensive.

 

The incident, which occurred when the road surface caved in, forming a sinkhole measuring 30 by 30 metres and 50 metres deep. The collapse pulled down power poles, a Samsen Police Station tow truck and a private car. Fortunately, no injuries were reported.

 

Throughout the day, soil continued to slide into the cavity, complicating stabilisation efforts. Police and rescue teams secured the area to prevent additional accidents while engineers and city workers assessed the extent of the damage. Traffic around the site was diverted as safety remained the priority.

 

By evening, Pol Maj Gen Chotiwat Lueangwilai, commander of the Metropolitan Police Bureau’s Investigation Division, confirmed the use of drones equipped with thermal cameras to examine the site. The survey indicated significant moisture under the road surface, highlighting the likelihood of further collapse. Red zones captured in the imagery showed areas where soil volume had already disappeared.

 

Experts have suggested that the collapse is linked to underground tunnel erosion and water pipe damage, though the exact cause has yet to be confirmed. The Bangkok governor earlier stated that sandbag filling would be used as a stabilisation measure, describing it as consistent with international standards. 

 

Chadchart reported that the Mass Rapid Transit Authority of Thailand (MRTA) and contractors have deployed more than 50,000 sandbags into the area to block water from flowing into the tunnel. He described this as "closing the door to prevent water entry," explaining that the sandbags would stabilise the situation and improve system recovery efforts.

 

"We must consider future implications when using equipment to fill these gaps. We can't just do something now only to tear it down again later. We're using sandbags so they can be easily moved in the future if needed. If we have to remove them to build a new tunnel, drilling equipment can access the area more easily. I believe this is the right approach that our engineers have carefully considered," Chadchart said.

 

Other commentators have pointed to long-term soil and water management challenges in the capital. Authorities remain on high alert as the risk of additional ground failure persists. Ongoing monitoring of the area will continue with both drones and ground inspections to assess stability. The public has been advised to avoid the affected zone until safety can be guaranteed.

 

 

 

Key Takeaways

 

• A 30x30 metre, 50-metre deep sinkhole opened on Samsen Road on September 24.

• Police thermal scans show high ground moisture, raising the risk of further collapse.

• Authorities are maintaining patrols and inspections while stabilisation continues.

Looks like the tunnel beneath collapsed 

 

18 hours ago, Georgealbert said:

Anutin: Road Collapse Repairs to Take at Least One Year

 

There was one very similar in Japan in 2016 . 
It took them just over a week to connect the utilities , fill it in and resurface the road.

 

 

23 hours ago, SAFETY FIRST said:

I might give my annual health check up a miss today 

 

Poor cops woken up from their snooze 

They stepped outside to look into the situation....

20 hours ago, sammieuk1 said:

Look lively plod your all going to fall into a hole🤔

Look lively indeed. That's the biggest hole I've ever seen in Bangkok.

Fascinating. And on the basis of comments above more of the same could could happen any day almost anywhere in Bangers.

 

Must make sure my b/f has his video operating properly when we visit the national capital for 11 days in December. Gotta keep the folks back in Oz & NZ entertained.

The Big Hole! Anutin is looking into it !

On 9/24/2025 at 8:29 AM, webfact said:

a road collapsed to a depth of 50

Prior to the collapse, the affected section of road had shown signs of instability. The surface was uneven, resembling a basin, with frequent waterlogging making it difficult for vehicles to travel at normal speed.

"We must consider future implications" Chadchart said.

You might also consider that if in the future "a road shows signs of instability", you should investigate..., might save you a headache, or two.

Wonder if liberty media is thinking yeah maybe we will just cancel the plan for F1 in Thailand 😳🙈🏎️🏎️🏎️👋

45 minutes ago, NE1 said:

 

There was one very similar in Japan in 2016 . 
It took them just over a week to connect the utilities , fill it in and resurface the road.

 

 

It will not take longer to do the work in Thailand. But before they can start they have to negotiate the brown envelopes. That will take time.

Is there any way we can blame Tony for this? 

 

Just curious.

What is really surprising is that this doesn't happen more often. Bangkok is built on pretty shaky ground, not exactly a granite bedrock like Manhattan. 

    Very lucky nobody has died so far.  Typical that early warning signs were ignored.  No officals wondered why the road was sinking?  Maybe investigate?  Especially the cops--literally right in front of their station!

16 hours ago, SAFETY FIRST said:

Removing the car, puts woman out of business. 

 

Can we just confirm that that is fake news courtesy of AI?   Or not even AI, just photo-shopping.

For example, the person serving food is either legless or there is a big hole in the back of the truck.

Or both.

Hardly anyone would believe the story. Got a few phone calls literally from all over the planet. Some congratulated to the perfect AI-clip on Bangkok, others give the clip roots somewhere in Hollywood and not a single one of them initially thought that this really could happen in the capital of a country in the 21st century. 

Next thing - hunt, identify and arrest scapegoats. Then enter a many-years-long legal hassle and ultimately throw the wrong innocent ones in the slammer ....... some explanation has to be done, seriously. 

On the bright side is that nobody really got hurt, the damages better be covered by the municipality administration of Bangkok. 

4 minutes ago, Sydebolle said:

Next thing - hunt, identify and arrest scapegoats. Then enter a many-years-long legal hassle and ultimately throw the wrong innocent ones in the slammer

Got some examples of that, or just defaming the Thai legal system?

Chinese construction company involved. What do you expect?

20 hours ago, mymonkeyhusb said:

Is there an underground railway in BKK? 

Google it and you will find out 

I have come across many “sink holes” in Nana and Pattaya. Never deterred me, moved on to the next one. 

19 hours ago, brfsa2 said:

At the current rate, there is a very high probability that bangkok will sink another 2-4 meters over the next 100 years.

Not including sea level rise.

The 2-4 meter range assumes continued groundwater extraction at moderate levels and ongoing urban loading. This means we might see 1-1.5 meters in the first 30 years, another meter over the following 30 years, then progressively smaller increments.

 

What do you think of this analysis I did with Claude:

 

Combined Effects Timeline Analysis for Bangkok

Going through each timeframe, combining both Bangkok subsidence and sea level rise while accounting for their different temporal characteristics.

10-Year Projection (2025-2035): Land subsidence will likely contribute 15-25 centimeters of relative elevation loss during this period, as we're still in the more rapid phase of consolidation. Sea level rise will add approximately 4-6 centimeters, assuming continued acceleration of current trends. The combined relative sea level rise reaches 19-31 centimeters, with subsidence dominating the signal.

20-Year Projection (2025-2045): Subsidence accumulates to 25-40 centimeters as consolidation rates begin to slow in some areas. Sea level rise contributes 10-18 centimeters, reflecting the expected acceleration in global rates. Combined relative elevation loss reaches 35-58 centimeters. At this point, both processes contribute significantly to flood risk.

40-Year Projection (2025-2065): This timeframe becomes more complex because we're entering the period where consolidation processes may be slowing significantly in well-managed areas, while sea level rise acceleration becomes more pronounced. Subsidence contributes approximately 50-80 centimeters, but this assumes no major policy changes in groundwater management. Sea level rise adds 25-50 centimeters, depending on emissions scenarios and ice sheet dynamics. Combined effects reach 75-130 centimeters of relative elevation loss.

60-Year Projection (2025-2085): Here we encounter substantial uncertainty in both processes. Subsidence might contribute 70-120 centimeters if current trends continue, but this assumes the clay layers haven't approached their consolidation limits. Sea level rise becomes the dominant uncertainty factor, potentially contributing 40-90 centimeters depending on ice sheet behavior and emission pathways. Combined relative sea level rise could reach 110-210 centimeters.

 

The answer to your question is "Not much". You have not even accounted for the rise in groundwater levels since 1997.

19 hours ago, brfsa2 said:

At the current rate, there is a very high probability that bangkok will sink another 2-4 meters over the next 100 years.

Not including sea level rise.

The 2-4 meter range assumes continued groundwater extraction at moderate levels and ongoing urban loading. This means we might see 1-1.5 meters in the first 30 years, another meter over the following 30 years, then progressively smaller increments.

 

What do you think of this analysis I did with Claude:

 

Combined Effects Timeline Analysis for Bangkok

Going through each timeframe, combining both Bangkok subsidence and sea level rise while accounting for their different temporal characteristics.

10-Year Projection (2025-2035): Land subsidence will likely contribute 15-25 centimeters of relative elevation loss during this period, as we're still in the more rapid phase of consolidation. Sea level rise will add approximately 4-6 centimeters, assuming continued acceleration of current trends. The combined relative sea level rise reaches 19-31 centimeters, with subsidence dominating the signal.

20-Year Projection (2025-2045): Subsidence accumulates to 25-40 centimeters as consolidation rates begin to slow in some areas. Sea level rise contributes 10-18 centimeters, reflecting the expected acceleration in global rates. Combined relative elevation loss reaches 35-58 centimeters. At this point, both processes contribute significantly to flood risk.

40-Year Projection (2025-2065): This timeframe becomes more complex because we're entering the period where consolidation processes may be slowing significantly in well-managed areas, while sea level rise acceleration becomes more pronounced. Subsidence contributes approximately 50-80 centimeters, but this assumes no major policy changes in groundwater management. Sea level rise adds 25-50 centimeters, depending on emissions scenarios and ice sheet dynamics. Combined effects reach 75-130 centimeters of relative elevation loss.

60-Year Projection (2025-2085): Here we encounter substantial uncertainty in both processes. Subsidence might contribute 70-120 centimeters if current trends continue, but this assumes the clay layers haven't approached their consolidation limits. Sea level rise becomes the dominant uncertainty factor, potentially contributing 40-90 centimeters depending on ice sheet behavior and emission pathways. Combined relative sea level rise could reach 110-210 centimeters.

 

 

A spokesman for the police said about the hole that they will be looking into it.

Yeah now the so called experts are coming out with their explanation/calculations and presentations after the fact to show off their expertise and steal the spotlight so they can show off in front of their wives/mia noi. Where were the fools while digging the holes? We drive on that road daily for school and it’s been a bottleneck for years with lane closures. And now it’s going to get worse. 

1 hour ago, blazes said:

Can we just confirm that that is fake news courtesy of AI?   Or not even AI, just photo-shopping.

For example, the person serving food is either legless or there is a big hole in the back of the truck.

Or both.

I think it's called humour. 

Some here found it funny 

 

Sorry if I offended you 

Worked road construction on these cave ins what we called them in the US.

Most of the time for us it was around water runoff drainage inlets or pipes that had a failed area (usually pipe joint or motar in between the bricks on the DI) allowing water and dirt to wash into and away.

 

It usually shows just like they mentioned the area becomes sunken, sometimes a hole in the asphalt opens up.

 

The size and scale of this collapse and signs before the collapse are concerning.  Hopefully they learn and will inspect these areas and work to repair them sooner.  Just filling in the sunken area with new asphalt doesn't fix the problem.

 

Might want to tell Pattaya to take a look at the area on Thepprasit Road they keep filling in around the drainage inlets.

 

Approximately 

12.905608,100.874981Google Maps

12°54'20.2"N 100°52'29.9"E

 

 

The hole looks like it is ready to act as underground parking for a shopping mall. 

I can't blame anyone as sinkholes appear in many places. In the middle of a street is unusual though, except in Guatemala City.

 

 

 

Another potential failure point is being reported further up the road. Similar initial road movement.

 

 

Translated by Google.

 

 

Without making light of it, it's still smaller than some of the potholes I've seen  in Australia.

UPDATE
Bangkok Sinkhole Battle: Sandbags Used to Halt Collapse