Flooding in Bangkok: four causes

By Lodewijk Lagemaat
Posted in Background
Tags: , ,
October 9, 2016

Heavy rains hit Bangkok last week, leading to flooded areas. The sewage system could not cope with the amount of rain, such as in the Bang Sue district. It was a nightmare for traffic for several hours.

However, upon inquiry with the various experts, different opinions emerged, which can be divided into four groups. There are not enough places to collect the amount of water. Amorn Kitchawengkul, vice governor of Bangkok, said Bangkok needed an additional 10 areas, in addition to the existing 25, to store at least 25 million cubic meters of water. Existing shelters such as the Makkasan swamp and the Ekamai area are not sufficient, according to Amorn.

The rapid urban development has also ensured that the amount of water can no longer be absorbed by the soil. Lat Phrao, which was initially an open area where the water could go, is now filled with buildings. The suburbs of Bangkok have also shown a 40 percent reduction in undeveloped land, so that water here too cannot drain away or be absorbed into the soil.

Professor Thanawat Charunpongsakul of the Thailand Environment Institute indicated that the city's sewage system does not exceed 60 mm. rainwater per hour.

Another problem is the large amount of dirt and waste that clogs the sewage system. Every day, nearly 20 tons of dirt is removed from the klongs, which discharges the water into the Chao Phraya River. Possible solutions were not listed!

From: Thai PBS

6 Responses to “Flooding in Bangkok: Four Causes”

  1. LOUISE says up

    Require every new building-mall or whatever to be built to install a sewer underneath with a much, much larger cross-section than they currently have, because as we were already told, it was not the fault of the sewers installed and the eventual repairs carried out, but the…rain…

    That is the only way to process water if you are going to build on every square millimeter.
    And then immediately oblige to provide parking space.

    But this almost sounds logical and that is unfortunately a word that is not known here.

    LOUISE

    • theos says up

      @LOUISE, sewerage is unknown in Thailand. It is simply assumed that it will flow to the sea on its own or sink into the ground. It used to be that the criss-cross construction of every empty spot blocked the flow of the water. Water takes the path of least resistance, there you go.

      • RonnyLatPhrao says up

        Our house in Bangkapi is connected to the city's sewage system.
        Maintaining the sewers is another story.
        I've only known about it once since the 2011 flood.
        A kind of ball/bucket is let in along a sewage pit and manually pulled through the pipe to the next sewage pit, etc…
        Afterwards the whole street stank and it was full of mud, but well… maintenance had been done.
        I was told they were prisoners who did the maintenance of the sewers, but I didn't ask them myself….

  2. pw says up

    The plastic waste is not the problem, the person who throws the rubbish on the street is.
    Ever bought a bag of Fishermen's friend at the 7-11?
    There SHALL and MUST be a plastic bag around it!
    We like to tackle the problem at the root. Do not mop with the tap open.

  3. Jay says up

    4 reasons… 555 . Only 1 reason, corrupt government employees who push money intended for road improvement behind.

  4. Eric says up

    Just a stupid question. I don't read about it. Bangkok is big!
    Bangkok has a subway system. MRT. Doesn't it fill with water? Or does it run through areas without flood zones?


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