Industrial Estates Ramp Up Flood Defenses for Heavy September Rains
Industrial parks across Thailand's central and eastern regions are strengthening flood defenses ahead of heavy September rains, with Bang Pu and Ayutthaya estates deploying upgraded pumping systems, reinforced dikes, and 24-hour monitoring
The Industrial Estate Authority of Thailand has mobilized all industrial parks in at-risk areas to elevate flood-prevention measures following a Thailand Meteorological Department warning of heavy to very heavy rainfall between September 23-27, 2026. The central, northern, eastern regions and Bangkok, as well as Ayutthaya and Samut Prakan provinces, are classified as zones requiring heightened vigilance for intense rainfall and accumulated precipitation.
IEAT director Sumet Tangprasert announced urgent orders for industrial parks to boost monitoring protocols and prepare fully for potential flooding in order to protect business operators, investors, and the nation's key production base, particularly at Bang Pu and Ayutthaya industrial zones.
Bang Pu Industrial Estate has continuously upgraded drainage efficiency, now operating at combined pumping capacity of 100,000 cubic meters per hour. Active water management includes regular ditch maintenance, maintenance of low water retention basin levels to absorb incoming rainfall, and inspection of drainage routes. Smart surveillance systems—CCTV, SCADA automated controls, and automated rainfall measurement—continuously alert operators to conditions. The recently completed flood barrier wall protecting Bang Pu zones 1 and 2, standing 1.9 meters above mean sea level and spanning 5.65 kilometers, provides added assurance against flooding.
Ayutthaya's three industrial zones—Nakhon Luang, Bang Pa-In, and Ban Wa (Hi-Tech)—have prepared comprehensive flood response plans for the Chao Phraya river basin. Nakhon Luang estate features a dike 8.20 meters above mean sea level, Bang Pa-In's reaches 6.00 meters, and Ban Wa's stands 5.40 meters, all reinforced with compacted earth and concrete. Water retention ponds have been prepared to absorb rainfall and slow flood flows. Primary pumps and diesel generator backup capable of eight-hour power supply are stationed at all locations, with 24-hour monitoring of water levels inside and outside the zones.
External coordination includes close tracking of meteorological forecasts and water releases from Chao Phraya and Rama VI dams via the Royal Irrigation Department. Other locations in Prachuap Khiri Khan and Chachoengsao, though subject to low-lying flooding due to terrain, situate most industrial parks on elevated ground above sea level and are expected to operate normally.
