Flood-weary residents vent fury-expanded metal mesh

An angry motorist confronts protesters after her car was badly damaged during clashes near the Din Daeng-Don Muang tollway yesterday. PATTANAPONG HIRUNARD

He said some areas could be affected as the water in Khlong Mon 40 could rise by 1cm to 2cm after the barrier was dismantled.

Military Barriers/Hesco Bastions

Information

Specification

Dr Arthit yesterday sent a letter to Froc director Pracha Promnok and Bangkok governor Sukhumbhand Paribatra, asking them to accelerate drainage of the floodwaters.

“The flood barriers could just slow down the run-off into the city. The areas which have dried out should open the way for the water to drain into the sea,” she said.

“And I’m asking Don Muang people to join us. We are in the same boat.”

The residents demanded the government’s Flood Relief Operations Command (Froc) accelerate drainage of floodwaters which had affected their livelihoods for a month.

On his Facebook wall, Dr Arthit suggested blocking Vibhavadi Road and Don Muang tollway.

However, he was opposed to a proposal that the floodwater be drained via the western side, saying it would affect Khlong Prapa, which is a resource for tap water production.

He said the floodwater may recede, but the level is still high in many areas.

“If the authorities do not take action I suggest that we take a step. That is to close down in-bound and out-bound Vibhavadi road and Don Muang tollway,” Dr Arthit said.

Assembly

Assembling the Hesco Bastion entails unfolding it and (if available) using a front end loader to fill it with sand, dirt or gravel. The placement of the barrier is generally very similar to the placement of a sandbag barrier or earth berm except that room must generally be allowed for the equipment used to fill the barrier. The main advantage of Military Barrier, strongly contributing to their popularity with troops and flood fighters, is the quick and easy setup. Previously, people had to fill sandbags, a slow undertaking, with one worker filling about 20 sandbags per hour. Workers using Military Barrier and a front end loader can do ten times the work of those using sandbags.

The Hesco Barrier come in a variety of sizes. Most of the barriers can also be stacked, and they are shipped collapsed in compact sets. Example dimensions of typical configurations are 46″ x 36″ x 32 (1.4m x 1.1m x 9.8m) to 7 x 5 x 100 (2.1m x 1.5m x 30m).

A new system of Hesco Bastion developed specially for military use is deployed from a container, which is dragged along the line of ground where the barrier is to be formed, unfolding up to several hundred meters of barrier in minutes, ready for filling with soil by a backhoe.

Protection

Filled with sand, 60 centimetres (24 inches) of barrier thickness will stop rifle bullets and shell fragments. It takes 1.5 metres (five feet) of thickness to prevent penetration by a rocket propelled grenade round. Approximately 1.2 metres (four feet) of thickness provides protection against most car bombs.

After the flood barrier was removed, large amounts of water rushed towards Saphan Mai area.

Anond Snidvongs, the Froc’s water management adviser, said a meeting among Bangkok and six neighbouring provinces’ governors, chaired by Deputy Prime Minister and Interior Minister Yongyuth Wichaidit, will be held today to find solutions to halt the spreading conflicts.

Meanwhile, Prime Minister Yingluck Shinawatra yesterday pleaded with Bangkok residents to let some floodwaters flow into the area to ease the hardship of others.

Residents of swamped communities in Pathum Thani clash with motorists during the blockade of the Din Daeng-Don Muang tollway in front of Zeer Rangsit department store yesterday. The flood victims set up a roadblock to demand the government speed up flood relief operations after being hard hit by deep floodwaters for about a month. PATTANAPONG HIRUNARD

The residents from several flooded communities in Rangsit and Lam Luk Ka areas, led by former election candidate Kiattisak Songsaeng, set up a blockade on the entrance of the inbound tollway in front of Zeer Rangsit department store at about noon.

Almost simultaneously, nearly a thousand residents in Bangkok’s Sai Mai and Don Muang areas yesterday dismantled a massive sandbag dyke at Don Muang’s Directorate of Air Operations Control intersection on Phahon Yothin Road.

Deputy city clerk Chumphol Sampaopol yesterday said the removal of the floodwall on Phahon Yothin Road would slow down the drainage resulting in prolonged hardship.

Originally designed for use on beaches and marshes for erosion and flood control, the Hesco Bastion quickly became a popular security device in the 1990s.

The road closure caused heavy congestion, prompting motorists to negotiate with the protesters. However, the talks failed and both sides clashed at about 2pm before police from Vibhavadi station and Pathum Thani intervened.

“Some areas such as Lat Phrao, Kasetsart intersection may take another four to five days to dry out.” He said that the city has asked the Royal Irrigation Department to install more water pumps south of Khlong Rangsit to accelerate drainage of water in the Don Muang area.

“Even though the city’s drainage system is working efficiently, the removal of the floodwall could slow down the drainage,expanded metal mesh,” he said.

“If we look at the big picture and try to understand the nature of water, that is the best solution,” she said.

The QIAOSHI’s Military Barriers or Hesco Bastions is a modern gabion used for flood control and military fortification. It is made of a collapsible wire mesh container and heavy duty fabric liner, and used as a temporary to semi-permanent dike or barrier against blast or small-arms. One of the less heralded life- and labor-saving devices of war, it is used on nearly every United States Military base in Iraq as well as on NATO bases in Afghanistan.

She said she had asked the Froc and City Hall to work together to drain the water and jointly negotiate with the people in the process.

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