What happens to the natural surface water runoff / overflow?
Water that is unable to enter the underground drainage system will find its natural way to the nearest watercourse as above ground flow via overflow paths. These overflow paths are typically roadways, public reserves, pathways and often through private property. Many new developments have been designed to use roadways and pathways as dedicated overflow paths. It is important to keep the drainage system clear of litter and debris to avoid blocked drains that can cause flooding. This is also necessary to protect and improve the health of Wollongongs creeks and beaches.