Bangkok:Clarifying recent criticisms, Bangkok Governor Chatchart Sittipunt emphasized that the "Khu Bon-Bang Chan flood control reservoir" project was developed based on scientific principles and is open to incorporating new information to enhance solutions for the city’s flooding problems.
According to Thai News Agency, Chatchart addressed concerns regarding the Khubon and Bang Chan swamp projects. He explained that these projects are part of the Bangkok Metropolitan Administration’s (BMA) efforts to apply the "water retention basin" concept to improve water management efficiency. These are not directly linked to royal initiatives and are based on data, drainage efficiency, cost-effectiveness, and public benefit.
Following the severe floods in 2011, the Drainage Department assessed the feasibility of building six flood retention ponds. Public consultations led to the termination of four projects, leaving Khu Bon Pond and Bang Chan Pond under consideration. However, a detailed review indicated high investment costs, prompting the need to compare these projects with other potential drainage improvements that might offer more cost-effective solutions.
A study by the project's consulting team estimated the comprehensive flood control project, including the retention pond system, at around 11 billion baht. In contrast, improving canals and drainage systems is projected at approximately 6.7 billion baht. Consequently, the BMA is exploring options to enhance canal systems to speed up water transport, alongside improving the efficiency of Nong Bon swamp and the drainage tunnel system.
Governor Chatchart also clarified his previous role at Quality Houses Public Company Limited, which had legally objected to a related project in the Phra Sin area. He emphasized that the project's eventual cancellation occurred during a former governor's tenure and not during his. Current project considerations are based on data and academic criteria.
Discussing water management, Chatchart noted that effective retention ponds require water storage areas, proper intake, and drainage systems. The Khu Bon and Bang Chan swamps together can hold approximately 1 million cubic meters. Given the extensive rainfall in Bangkok, a comprehensive drainage system review is necessary beyond merely increasing storage capacity.
Chatchart reiterated the BMA’s openness to receiving new information or technical proposals that could influence project decisions. The Drainage Department is prepared to review and assess any new data to find the most suitable approach that balances drainage efficiency, budget, and public benefit.
Looking ahead, the BMA plans to enhance the Nong Bon Reservoir's efficiency, expand water intake channels, and develop a drainage tunnel system to ensure rapid water flow. Improvements to various canals will also be pursued to maximize their capacity as water transport routes.