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.
Delays peak rain from entering stormwater system (causing floods)
Detains water to allow delayed groundwater recharge (according to soil conductivity)
Can have overlapping recreational use in dry season
Reduces overheating (in comparison to paved areas)
Improved urban quality
Communicates urban water dynamics