WSUD Category: Biofilter/raingarden, Detention Basin, Stormwater management in multi-dwelling developments, Swale / buffer strip, Tree pits
|Development Type:||Public Open Space|
|Government Area:||City of Cockburn|
Runoff during frequent rainfall events from the Cockburn Central East development will be captured and treated in biofiltration swales to be installed adjacent to the wetland.
- The biofiltration system has been sized by modelling runoff from the connected catchment to contain the 1 year ARI, 1 hour event below weir level.
- Small event road runoff from the development site is managed by infiltration on-site in tree pits and underground infiltration devices.
- Stormwater in excess of the 1 year 1 hour ARI event volume will overtop the biofiltration swales and enter the wetland core via overland flow paths.