Bangkok laid out 1682 channels and 25 flood-proof flood storage areas

Close to Vietnam, especially with Ho Chi Minh City: a river city. Not as spectacular as the Japanese, but the Thai people choose canals to resist natural flooding.

Bangkok city is located in the delta of the Chao Phraya River, 1-2m above sea level. The ground in Bangkok was severely subsided as a result of taking groundwater.

This is a part of Bangkok's capital which is increasingly facing serious flooding. The other part is due to unreasonable land use, the process of urbanization is too fast. Many buildings are larger, taller and wider, making the water free.

Bangkok has a system of 1,682 large and small channels with a total length of 2.604km - (Photo: Bangkok Urban Administration).

Moreover, the pace of reconstruction exceeds the speed of building flood protection systems. Many projects even damage the canals and ditches which are part of the drainage system into the Chao Phraya River.

Data from Bangkok Metropolitan Administration (BMA), the city has a system of 1,682 different large and small canals with a total length of 2,604km. Many canals were built on both sides to prevent floods with a total length of 77km.

The public drainage system with a total length of 6.188km and 158 pumping stations with a total capacity of 1,636m3 / sec. Scattered throughout Bangkok also has 25 areas of flood water storage with a total volume of 1 water. , 2 million m3.

In addition to the drainage canal system, the capital of Bangkok also has a flood control system consisting of pipes with a diameter of 5 meters, walking in the city center at a depth of 15-22m and using a high-pressure pump to pump water out. river.

In the center, Bangkok has a completed 5km underground drainage system and an additional 6km of construction. In addition, Bangkok is planning to build two more drainage systems, respectively 13.5 km and 9.5 km long.

A reservoir against flooding in Bangkok - (Photo: Bangkok Urban Management Agency).

The cause of the devastating flood in Bangkok in 2011 was determined by the lack of uniform management in some of the lakes in the area in the storage and discharge of water for agriculture; continuous heavy rain combined storms for a few days; many sluice gates along the Chao Phraya River are inactive; Huge amounts of water from neighboring provinces poured into Bangkok.

After the historic flood in 2011, the city of Bangkok had many workshops and plans to implement flood protection more effectively.

In order to combat flooding, Bankgok City reinforced, built more embankments on both sides of the canal and in some parts of the Chao Phraya River; improve drainage productivity of canals; newly built three drainage systems into the Gulf of Thailand; build more reservoirs for flood water.