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Rain Highest In 100 Years, Bangkok Administration Claims: Floods


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Just out of interest does anyone know just how much Bangkok has sunk/ subsided in the last ten years. I remember about ten years ago massive monsoon downpours and sure enough roads would flood, but it was usually lasted an hour at most. Clearly the idea that it is raining more as a singular factor for the constant and frequent flooding doesn't wash.

There have to be other factors as work - has Bangkok started to sink? so the land is now lower in relation to the water table? has development blocked natural runoff path?

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laugh.pngThe picture at the start of this article says just about everything you really need to know about "flash flooding" in Bangkok.Note carefully that as this intersection the center of the intersection is LOWER than the pavements on each side....when the pedestrians wait.And where are the storm drains?Why there are placed in the side of the pavement....maybe 10 or 15 cm HIGHER than the center of the intersection,Since, even in Thailand, water does not run uphill, the center of the intersection does not drain....at leat until the water level reaches the level of the storm drains,Result? Well, obviously the rain runoff water pools in the center of the intersection.If you're trying to drain some place of water from heavy rains, it makes no sense to have those storm drains slightly higher than the lowest point you're trying to drain, does it?blink.png

I think it requires a really big degree and stuff and common sense to know to built the center of the road higher, so when it rains the water flows towards the drains. Of course if no cleaning maintenance is ever to be performed on the drains, you may make the center of the roads as low as you wish. crazy.gif

Edited by Ripple
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My statistics only go back 5 years. This year, at least in the northern suburbs, it has rained harder, longer and more often than it has in the previous years, including last year.

Last year's problem was runoff from the north, not the localized rain.

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Just out of interest does anyone know just how much Bangkok has sunk/ subsided in the last ten years. I remember about ten years ago massive monsoon downpours and sure enough roads would flood, but it was usually lasted an hour at most. Clearly the idea that it is raining more as a singular factor for the constant and frequent flooding doesn't wash.

There have to be other factors as work - has Bangkok started to sink? so the land is now lower in relation to the water table? has development blocked natural runoff path?

Good point...I was wondering about that myself. Perhaps Bangkok is sinking and the drainage routes are getting damaged in the process. I don't recall witnessing all these problems, say 5-10 years ago in relation to something as commonplace as roads draining rapidly during a rainstorm.

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laugh.png

The picture at the start of this article says just about everything you really need to know about "flash flooding" in Bangkok.

Note carefully that as this intersection the center of the intersection is LOWER than the pavements on each side....when the pedestrians wait.

And where are the storm drains?

Why there are placed in the side of the pavement....maybe 10 or 15 cm HIGHER than the center of the intersection,

Since, even in Thailand, water does not run uphill, the center of the intersection does not drain....at leat until the water level reaches the level of the storm drains,

Result? Well, obviously the rain runoff water pools in the center of the intersection.

If you're trying to drain some place of water from heavy rains, it makes no sense to have those storm drains slightly higher than the lowest point you're trying to drain, does it?

blink.png

This seems to be a problem common to Thai engineers ! Near to my home on Samui, there is a very sharp bend with quite a camber from the outside of the bend probably 1/3rd of a meter. Guess where the drains are...........you got it, they are "cleverly" placed on the high side out of the way !

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My statistics only go back 5 years. This year, at least in the northern suburbs, it has rained harder, longer and more often than it has in the previous years, including last year.

Last year's problem was runoff from the north, not the localized rain.

I have no statistics to back it up but i agree with you this is the worst in a long time. Worse then last year for sure. I also live in the northern suburbs.

But it is stupid that there is no such thing as cleaning those drains before there are problems. Looks like the BMA either does not want to work or has stolen the money already and cant spend it on maintenance.

Not any different of course of YL and her dams that still have not been build or are failing. All those politicians no matter what color they are skim / steal too much. Too bad there isn't a french style reckoning, but that would only mean that other corrupt people get the job. Too many believe corruption is acceptable.

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My statistics only go back 5 years. This year, at least in the northern suburbs, it has rained harder, longer and more often than it has in the previous years, including last year.

Last year's problem was runoff from the north, not the localized rain.

I have no statistics to back it up but i agree with you this is the worst in a long time. Worse then last year for sure. I also live in the northern suburbs.

But it is stupid that there is no such thing as cleaning those drains before there are problems. Looks like the BMA either does not want to work or has stolen the money already and cant spend it on maintenance.

Not any different of course of YL and her dams that still have not been build or are failing. All those politicians no matter what color they are skim / steal too much. Too bad there isn't a french style reckoning, but that would only mean that other corrupt people get the job. Too many believe corruption is acceptable.

A reckoning is inevitable, next month, next year, next decade, but inevitable. The wealthier the people become, the less they will stand for this mess.

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This article was a nonsensical childlike transcription of who said what in and out of context regardless of fact or verification.

The problem is there is no way to accurately measure rain fall in Bangkok. here in Chiang Mai we will often get rain in one part of the city and none in another.. Bangkok covers a much larger area and it is easy to get different figures if you measure in different areas.

I know it may be a small thing but with the amount of rain they do get unless some thing is done about the drainage systems the problem can only get worse. As Bangkok sinks the drainage systems also sink.

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I'm surprised they havent' invented and anti rain making machine yet???

Next on plods list, but like most other things done before.

However, it must be said, water pushing is something new that has defeated the greatest minds in physics. A true genius.

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It doesn't really matter who is being unclear on the amount of rainfall, what is clear is that BKK cannot handle even normal rainfall.

If the drainage system was efficient enough then their wouldn't be the flooding of roads as we have all witnessed, clearly they are not efficient or not up to the job !!

99% of roads are fine. I haven't seen any flooding at all in central Bangkok, and I've been out and about every day. The water is draining away very quickly. There may be isolated instances of flooded roads, but these can be looked into and fixed.

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I'm surprised they havent' invented and anti rain making machine yet???

That is their next project just as soon as they put the final touches on the wheel they have been working on for 20 years

Edited by hellodolly
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