Saturday 12 November 2011

Rama II Rd safe for now

Assoc Prof Dr Seri Suparathit of Rangsit University Centre on Climate Change and Disaster, in a daily flood report on Thai PBS noted:

According to a simulated scientific model, there are several factors that can sink Bangkok: Heavy rainfalls, higher sea tide rising about 3 millimeters per year, areas subsiding, dense development, and clogged canals system. All these risk factors would pose great risk for a big flood.

MRT with its existing infrastructure will not survive the next great flood as well.

Another great risk for Bangkok is the safety of tap water. Metropolitan Waterworks Authority must reinforce its protection of Khlong Prapa which feeds raw water from Chao Phraya river to be processed into tap water for 6 million residents on Bangkok side.

Dr Seri then turned to daily flood analysis.

Big Bag still sees protests from affected residents above Big Bag demanding the government open gaps more because they don't see any declining flood level. There is about 50cm difference between those above and below Big Bag.

If more gaps are to open, Khlong Bang Sue must have more pumps installed to cope with more inflow.

At the moment Khlong Bang Sue pumping station is fighting well. Dr Seri was worried about heavy working load working non-stop, but he thought the men in charge should know about pump rotation to rest some for maintenance.

Worst case if all the pumps break down, water will overflow the canal to Victory Monument but the flood level will not be deep about 20-30 cm. So right now, good working pumps are key.

Good news: Chulalongkorn sluice gate, Prem Pachakorn canal continue to see declining water level.

Bad news: Bang Chan Industrial Estate is now surrounded by water as well as Lat Krabang Industrial Estate. Again the strategy is do whatever it takes to help increase waterfowl downwards especially along various canals.

Thonburi side: Water has overflowed railway line and has reached Rama II Road. Upon on site investigation today, Rama II on average is 50 cm higher than surrounding areas. So water has gone under the road through various canals. 

The trouble is clogged canals impeding water flow to Mahachai's royally initiated water retention area which is near the sea.

Rama II Rd is safe for now and it can be navigable for a few more days.

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