Flood prevention measures for Bangkok include diverting floodwaters to the sea and the water from the Pasak River to Khlong Rapeepat, Khlong Samwa and Khlong Saen Saep.
City Hall has also been instructed to dredge seven canals in Nong Chok and Lat Krabang to ensure they can take in more water.
The army and navy are also building floodwalls in the Muang Ake housing estate in Rangsit and in areas around the Rangsit canal, Salaya and Taling Chan to protect inner Bangkok from inundation.
Science and Technology Minister Plodprasop Suraswadi, chief of operations covering evacuation and flood prevention, gave assurances that inner-city areas of Bangkok would be safe.
But he admitted some suburbs, particularly in the east, west and north of Bangkok would be hit by run-off.