UPDATED 14 October: Maps of Flood Risk Areas in Bangkok #ThaiFloodEng

October 8, 2011

UPDATE 14 October: Google Crisis Response have now released an English version of their Thailand Flood Map

Despite flooding in about 30 provinces in Thailand (see map) the Bangkok Governor is confident that the city itself is well prepared and can face any floods. This is mainly because the city has a 75.8km-long flood wall along the banks of the Chao Phraya River. In February last year, according to the Bangkok Post, the city constructed a seventh drainage tunnel between the Rama IX and Ramkhamhaeng areas. The combined length of the seven drainage tunnels in Bangkok is 19km. In addition, the city has 21 “monkey cheek” water retention areas. These areas can hold up to 12.75 million cubic metres of water.

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Google Crisis Response have now released an English version of their Thailand Flood Map (see here). However, some captions are still in Thailand. I have translated the map for risk areas in Bangkok.

Latest flood predictions for Bangkok (Bangkok Post 13 October 2011)

Despite the flood prevention wall, families in 27 communities in 13 districts outside the flood walls along the Chao Phraya River, the Bangkok Noi Canal and the Maha Sawat Canal are still at risk. The 13 districts are: Bang Sue, Dusit, Phra Nakhon, Samphanthawong, Bang Kholaem, Yannawa, Klong Toey, Bang Phlad, Bangkok Noi, Thonburi, Klong San, Rat Burana and Thawi Watthana. In addition, 15 areas in the city, see the map above, could also experience bad flooding.

Flood barriers in Pathum Thani were breached in 11 places including the five locations in red circles in this map above. Latest reports are that it has now been repaired. (Source: Nation 12/10/2011).

Map of Bangkok by the Nation: Brown line shows roads which are high enough to also function as an embankment against flood water. Red line is the permanent embankment wall along the Chao Phraya River. Green line is a 1.2 km stretch which will be finished by the end of 2011.

The map above, also by the Bangkok Post graphics department, shows the 75 km long flood prevention wall. It also shows the locations of the drainage tunnels.

List of temporary evacuation centres for Eastern Bangkok Districts (Bangkok Post)

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189 Responses to UPDATED 14 October: Maps of Flood Risk Areas in Bangkok #ThaiFloodEng

JohnH on October 8, 2011 at 6:07 pm
Thanks for the maps and links. Lots of useful information here. I will bookmark it and share it with my friends who live in Bangkok.
Khun Don on October 8, 2011 at 7:05 pm
Constant flood updates over on sister site.
http://www.thailandqa.com/forum/forum.php
Johannes on October 8, 2011 at 8:16 pm
Going to Bangkok for 8 days next thursday (13th until 22th), what are the expectations for Bangkok centre? Banghlamphu area, Silom, Siam and Sukhumvit? Risk of flooding there, or are only the outskirts in danger?
- Richard Barrow on October 8, 2011 at 8:20 pm
  I think there will only be limited flooding in certain areas for short periods of time. They have done a lot more in recent years to protect Bangkok from the floods. We were expecting bad things last year but it wasn’t so bad in the end. The rest of the country is a different story of course.
  - Johannes on October 9, 2011 at 3:03 am