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Bangkok Gov Chadchart: Full Canals, Not Clogged Pipes

Bangkok Governor Chadchart Sittipunt inspected drainage at Prawet Burirom Canal on Sept 25, 2069, citing over 150mm of rainfall and promising overnight operations.

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26 Sep 2026Source: Khaosod Politics2 min read (0 views)
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Bangkok Gov Chadchart: Full Canals, Not Clogged Pipes

Stock photo for illustration only, not from the actual event

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  • Bangkok Governor Chadchart inspected heavy rainfall in eastern Bangkok.
  • Stated the main issue is full canals, not blocked drainage pipes.
  • Recorded over 150mm of rainfall within 24 hours in some areas.
  • Ordered increased pump capacity and debris clearance at Nong Bon Swamp.

Bangkok Governor Chadchart Sittipunt visited eastern Bangkok to monitor severe flooding caused by torrential rainfall, inspecting drainage operations along the Prawet Burirom Canal in Suan Luang district and the Nong Bon Swamp. He urged the drainage department and relevant agencies to mobilize all available resources to manage and expedite water drainage across the affected areas.

According to the local situation report, rainfall over a 24-hour period exceeded 150 millimeters in certain areas and continued persistently, causing multiple canals to reach their maximum capacity and leading to overflow in riverside communities. Bangkok Metropolitan Administration officials have been operating drainage pumps at full capacity, but due to the overwhelming volume of rainwater surpassing the canals' drainage limits, a gradual clearance process is required.

150+mm 24-hour rainfall accumulation
Bangkok canal water pump drainage Thailand

Stock photo for illustration only, not from the actual event

During his inspection at Nong Bon Swamp, Governor Chadchart instructed officers to step up efforts in collecting garbage and obstacles blocking water flow, while rapidly opening water intake channels to draw more water from canals into the swamp. Furthermore, additional mobile drainage pumps have been prepared to reinforce critical flooding points.

"The main issue right now is not clogged pipes. Water flows from pipes into the canals, but when the canals are full, the water has nowhere to go. We must accelerate drainage from the canals. Tonight, we will keep working through the night as rain is expected to continue."

Chadchart Sittipunt

Water management in Bangkok during the rainy season is highly complex due to the city's low-lying geography, which relies heavily on a network of canals to channel water out to the Chao Phraya River. When extreme rainfall exceeding 150 millimeters strikes in a short timeframe, water volumes frequently overwhelm canal capacities even if local street drains function normally. Utilizing retention areas like the Nong Bon Swamp serves as a critical mechanism to temporarily store excess runoff before releasing it into the main drainage system.

Source: Khaosod Politics

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