The BMA also has other tunnel projects such as one for Khlong Prem Prachakorn and Bung Nong Bon to help solve flooding, although these projects and other drainage systems require huge budgets, the governor said.
MR Sukhumbhand said the city's persistent flood problem is unavoidable given the city's location which is under mean sea level. The prime minister also waded into debate over the city's readiness to cope with sudden rains. Prime Minister Prayut Chan-o-cha said Bangkok's entire drainage system needs a major overhaul, after the rains caused traffic chaos in the capital's 36 areas.