Chulalongkorn Centenary Park, Bangkok, Thailand  © Landprocess

Chulalongkorn Centenary Park, Bangkok, Thailand

© Landprocess

DETENTION PARKS

Detention parks are run-off control structures that are designed to capture runoff and store the water temporarily in the case of a peak rainfall event. These are designed with a slow rate of groundwater recharge as well as discharge into the nearby waterway to prevent overflowing from the storage basin. They are dynamic in nature and can be utilised for multiple public purposes in addition to water storage such as playgrounds, parks and parking.

Primary Function

  • Delays peak rain from entering stormwater system (causing floods)

  • Detains water to allow delayed groundwater recharge (according to soil conductivity)

Added Benefits

  • Can have overlapping recreational use in dry season

  • Increased biodiversity

  • Reduces overheating (in comparison to paved areas)

  • Carbon sequestration

  • Improved urban quality

  • Communicates urban water dynamics