Several roads prone to flooding were inundated after heavy rain on Thursday and yesterday morning, said Adisak Khantee, director of the BMA’s Department of Drainage and Sewerage. A number of drains are awaiting dredging. BMA officials have been stationed at several flood-prone locations to take immediate action, he said, adding that frequent rain would continue all this month, as Typhoon Man-yi is expected to be followed by Typhoon Usagi.