Bangkok’s gigantic drainage tunnel is almost 90% ready

A giant 9-kilometre drainage tunnel designed to reduce flooding in Bangkok is 86.70 per cent complete and should be operational by March next year, Bangkok governor Aswin Kwanmuang said yesterday. .

Aswin Kwanmuang spoke after inspecting the Bueng Nong Bon drainage tunnel project, which stretches from Nong Bon in southeastern Bangkok to the Chao Phraya River.

The 5-meter wide tunnel runs over a length of 9.4 kilometres in a westerly direction at a depth of 30 meters. The tunnel, which begins at Rama IX Park in Nong Bon, is connected to the Bang Ao Canal and features seven drainage stations along the route to Bangkok’s main river.

The project started in January 2016 and is due to be completed on February 15 before opening a month later.

“The Bueng Nong Bon drainage tunnel will help prevent flooding on On Nut Road, Udom Suk Road and Sukhumvit Road,” said Khu Aswin. The tunnel would increase drainage efficiency over an area of ​​about 85 square kilometres, covering Prawet, Suan Luang, Phra Khanong and Bang Na districts, he added.

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