Properties along Hopetoun Ave and The Crescent, Vaucluse have been subject to flooding in the past. Extensive investigation has been completed and a combined drainage and water quality project recommended and adopted by Council to reduce the flood risk and treat the storm water being discharged to the environmentally sensitive receiving waters of Parsley Bay.

The project involved:

• upgrading local drainage infrastructure and gross pollutant traps to increase stormwater capacity to transport flows and capture pollutants before they reach the harbour
• flow diversion structures and energy dissipation to direct and reduce the velocity of increased flows, protecting the open channel through Parsley Bay Reserve from scouring and erosion and reducing the amount of sediment which is transported downstream to Parsley Bay and
• installation of a WSUD bio-retention system to treat overland flows from Hopetoun Ave for typical road runoff contaminants.

This project was completed in July 2009. View aerial photos and images of the water sensitive urban design technologies (PDF, 1.1 MB).

For more information, contact Chris Munro, Team Leader, Environment and Sustainability on 9391 7153 or chris.munro@woollahra.nsw.gov.au