KOTA KINABALU: The Sabah government should begin thinking about creating a "sponge city" for the city here as part of comprehensive long term flood mitigation solutions, says Sabah DAP Youth chief Chan Loong Wei.
He said the state government could also consider public-private partnership (PPP) models to support projects that convert open spaces into functional flood mitigation infrastructure, fully integrated into the city masterplan.
He said that transforming public parks into urban flood mitigation systems will not only safeguard lives and property, but also demonstrate how thoughtful urban planning can create cities that are both resilient and liveable.
Chan said the latest round of floods in Kota Kinabalu and neighbouring Penampang as well surrounding districts raises the question of a re-look at the drainage system which is incapable of mitigating high volume of water.
"Rains are no longer a mere seasonal occurrence, but rather an urgent crisis that threatens the safety, economy, and livability of communities in Sabah.
"It is evident the current drainage system, designed decades ago, is incapable of handling today’s heavier rainfall brought about by climate change.
"At the same time, rapid urbanisation has further diminished natural absorption capacity, leading to greater surface runoff and worsening flash floods," he said in suggesting a new look at the drainage issues.
He said that Sabah DAPSY agreed with the innovative proposal put forward by architect Tan Young to transform parks, playgrounds, and open spaces into dual-purpose areas that function both as community recreation facilities and as underground stormwater detention basins for flood mitigation.
Chan said that by optimising existing public spaces, the city can establish a hidden layer of flood defence without compromising their community functions.
“This strategy is cost-effective, enjoys strong public acceptance, and is scalable. We propose that the government first pilot the initiative in areas such as Lido, Dah Yeh, Likas, Kolombong, and Menggatal in the city here before gradually expanding it to other high-risk zones across the state," Chan added.
He said that several cities in China, under the “sponge city” policy, have successfully transformed public parks into multi-functional facilities serving both flood control and recreation.
Examples in China such as the Beijing Olympic Forest Park, Chengdu Jinjiang Greenway and more have all demonstrated their ability to absorb and retain stormwater during heavy rainfall, while functioning as vibrant leisure spaces for citizens in normal times.
