Debris Control Structures

13 debris control structures have been built in this catchment. Some have been built by Council, and others by Transport for NSW. Other debris control structures are being reviewed in the ongoing Flood Risk Management Study and Plan.

McMahons Street detention basin

We’ve engaged a consultant to design a detention basin to reduce downstream flood levels. Detailed designs and construction will be done at a later date to be advised.

Keiraville Public School floodway

Our studies suggest that a floodway at Keiraville Public School could help to reduce flooding downstream. More investigation is needed to confirm how this would impact the school and the environment, and whether it would be cost effective.

Hopewood Crescent culvert upgrade

We looked into creating a culvert on Hopewood Crescent to reduce downstream flood levels. However, we would need to buy three properties for this to go ahead. The costs are not viable at the moment so this project is on hold.

Dawson Street culvert upgrade

An investigation found that upsizing the culvert at this location results in little overall benefit except for very frequent events. Because of this, the concept of increasing the capacity of the culvert was not supported. However, it was also found that the roadway is currently under significant flood hazard.

Council is investigating options to install flood warning measures at this location under a city-wide approach for managing flood risk on the roads.

Voluntary Purchase

We bought and cleared 25 high flood risk properties in this catchment after the August 1998 flood.