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NSW Flood Data Portal

Flood study

Georges River Flood Study 2020

This flood study was commissioned by Liverpool City and Canterbury-Bankstown Councils to review and update the previous Georges River Flood Study (PWD, 1991).

The Study area comprises the Georges River floodplain from the East Hills Railway Line at Casula to downstream of the Salt Pan Creek confluence at Lugarno.

A TUFLOW HPC model was used to estimate flood behaviour in the catchment. It was calibrated and validated to historic flood data collected in August 1986, April 1988, April 2015 and June 2016.

Design inflows were estimated using rainfall runoff techniques from ARR1987 for consistency with previous work.

An assessment of the impacts of climate change was undertaken.

Additional Information

Field Value
Title Georges River Flood Study 2020
Publication Date 1 January 2020
Themes Land and Resource Management
Spatial Extent
Map data © OpenStreetMap contributors
Council/LGA Canterbury-Bankstown Council
Additional LGA's covered within study
  • Liverpool City Council
Author/ Prepared by BMT
Publish date 9 March 2022
Update date 11 March 2022
River Basin 213 - Sydney Coast and Georges River
Place Name Georges River
Approval State Approved
Submitted for approval 11 March 2022
Submitted by Ainslie Frazer
Approved 14 March 2022
Approved by dstazic
Identifier e63059ca-2200-4bf8-8a00-8e079bef3a6f