Bangkok:The Bangkok Metropolitan Administration (BMA) has confirmed the cancellation of the Khubon and Bang Chan swamp projects, citing financial impracticality.
According to Thai News Agency, the BMA's decision is based on the projects' inability to provide adequate water storage despite their high costs. The swamps were projected to hold only 700,000 cubic meters of water combined, in contrast to the more efficient drainage tunnels and Nong Bon swamp, which offer over ten times the capacity.
Deputy Permanent Secretary of the BMA, Mr. Jesada Chantharaprapha, and water management expert Mr. Chavalit Chantararat emphasized the necessity of considering efficiency, drainage capacity, and cost-effectiveness in such projects. They assured that the review process adhered to scientific principles without favoritism towards private companies.
The retention pond concept emerged after the 2011 floods and a 2013 drainage study. Rising land prices and the need for significant investment in infrastructure have further hindered the projects' viability. Mr. Chavalit noted that Khubon Lake's actual usable volume for water management is about 500,000 cubic meters, requiring infrastructure improvements for effective flood control.
Future water management will focus on utilizing existing resources like Nong Bon Lake and enhancing connectivity through major canals and pumping stations. This is part of a broader strategy to manage Bangkok's heavy rainfall and improve drainage across the eastern region.
Mr. Jesada highlighted that effective water management must balance retention ponds with comprehensive systems of canals and tunnels to handle the city's significant rainfall. The BMA aims to maximize public benefits through efficient and cost-effective water management solutions.