Severe Bangkok flooding after torrential downpour

[webfact]

Severe Bangkok flooding after torrential downpour

 

Picture: Thairath

 

BANGKOK: -- Many areas of Bangkok suffered severe flooding during the night as torrential rail hit the capital

 

In Klong Toey 111 millimeters of rain was recorded while Laksi was second highest at 101.5 millimeters, reports Thairath.

 

Worst hit roads were Viphawadee Rangsit near the Laksi intersection, Chaeng Wattana and Sukhumvit Road.

 

Some 20-30 centimeters of water was recorded in Laksi intersection after the rain started around 11pm last night.

 

In Sukhumvit Soi 39 was particularly bad with much of it unnavigable to smaller cars.

 

Water lapped all over the footpaths on a large swathe of the main road from Phrakanong to Asok.

 

Chaeng Wattana was largely under water even after 2am when the rain had stopped.

 

Source: Thairath

 

-- © Copyright Thai Visa News 2016-10-25

[Pib]

Been happening to areas of Bangkok (and other locations) for many, many years....even during years of drought.  The drainage system and soil just can't handle a tropical storm downpour....takes X-hours to drain off.  

[IMA_FARANG]

As i said before in many areas of Bangkok the high rise buildings are drawing off the subsurface water table.

In addition in some areas ther are subsurface storm drainage pumps which are supposed to remove rain water and pump it into the river.

Because the land in Bankok is subsiding due to the lowering of the subsurface water table, during periods of high tides that happen to coincide with heavy rains and a high water level in the river, these buried storm drainage pumps are now lower than the river and tidal water level in some lowlieing areas of Bangkok

So that mens that in someareas the storm drainage water system which was intended to pump storm drainage water into the river which was lower than the land now have to pump the storm drainage water up hill to river which has become higher than the storm drainage channels.

It is only the concrete walls around the river that are keeping the river from overflowing into the storm drainage channels and the sewr system when high tides and a high river water river level happen to coincide.

Obviouly if this situaton  continues as it did in November 2011 Bangkok is going to have another 2011 flood situation sooner or later.

The real problem is cauded by the subsiding of Bangkok land area by the removal of the Bangkok water table levels due to the drawing down of the subsrface water by the many high rise buildings now being built in a growing Bangkok.

result will inevidently mean more floods in Bangkok in the future years.

 

[lopburi3]

It takes many X hours - Klong Lat Phao at Wat Lat Phao was at 1 meter (one side 76 cm and other 69 cm) at 0700 today and has just gotten down to 92 cm - so entire area still flooded.  LP2 on below map.

http://203.155.220.231/Canal/

 

[SOTIRIOS]

...wow...

[williamgeorgeallen]

6 hours ago, Pib said:

Been happening to areas of Bangkok (and other locations) for many, many years....even during years of drought.  The drainage system and soil just can't handle a tropical storm downpour....takes X-hours to drain off.  

yes but this year the general promised it would not flood and he seems to be a pretty straight up guy. if he is wrong on this.........

[Pib]

Well, he meant due to flooding from the north/central plains like what happened in late 2011....water coming down from the north.   Bangkok has always had street flooding when it rains...even during  years of drought.    The drainage system/soil in many Bangkok areas just can not deal with a tropical downpour that last too long. 

[Stargeezr]

.Maybe Bangkok will  be like that city in Greece that sees high water levels

way to often, ad the cars have to have good clearance or not drive in parts of the city in

the future.Climate Change! as Leo DiCaprio would say, or maybe it is just bad

drainage and needs to be repaired.

Geezer 

[Estrada]

18 hours ago, IMA_FARANG said:

As i said before in many areas of Bangkok the high rise buildings are drawing off the subsurface water table.

In addition in some areas ther are subsurface storm drainage pumps which are supposed to remove rain water and pump it into the river.

Because the land in Bankok is subsiding due to the lowering of the subsurface water table, during periods of high tides that happen to coincide with heavy rains and a high water level in the river, these buried storm drainage pumps are now lower than the river and tidal water level in some lowlieing areas of Bangkok

So that mens that in someareas the storm drainage water system which was intended to pump storm drainage water into the river which was lower than the land now have to pump the storm drainage water up hill to river which has become higher than the storm drainage channels.

It is only the concrete walls around the river that are keeping the river from overflowing into the storm drainage channels and the sewr system when high tides and a high river water river level happen to coincide.

Obviouly if this situaton  continues as it did in November 2011 Bangkok is going to have another 2011 flood situation sooner or later.

The real problem is cauded by the subsiding of Bangkok land area by the removal of the Bangkok water table levels due to the drawing down of the subsrface water by the many high rise buildings now being built in a growing Bangkok.

result will inevidently mean more floods in Bangkok in the future years.

 

There are no pumps drawing water from the water table below Bangkok, that was stopped on my advice to the BMA Governor 20 years ago. Previously industry and hotel owners could pump as much water as they liked for free. Since then the ground has subsided at a much slower rate. The major problem here, is that a vast area of Bangkok and its environs have now been covered with concrete so that the rain water cannot be absorbed must go to drain causing flooding. Secondly the water level in the Chaophraya has to be lowered by bypassing excess water around Bangkok via the yet to be built, Super Floodways, and the Chaophraya River Barrage has yet to be constructed to hold back the high tides.

[jaaaason]

Wasn't it just last month the government said there would be no flooding in Bangkok? Just a question..

[lopburi3]

See post 7 - flooding comment was about river overflow of water from northern areas getting to the sea - a few years ago that made the river many miles wide as it entered Bangkok so there was flooding as it made its way to the sea.  That has not happened this year.  There are have always been drainage problems after storms and they still happen - but normally for a much shorter period of time.    

[Grubster]

13 hours ago, jaaaason said:

Wasn't it just last month the government said there would be no flooding in Bangkok? Just a question..

Yes, Back when they said the 2011 flood was very predictable and avoidable. Talk about putting your foot in your mouth. Ha Ha.