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NSW Flood Data Portal

This flood project has been superseded.
Flood study

Allans Creek Flood Study

The Allans Creek catchment has an area of 42 square kilometres. The catchment lies to the south west of the Wollongong CBO and rises up to the IlIawarra escarpment. The catchment is characterised by steep upper slopes with little development and a floodplain with a mix of residential, commercial and industrial development. The objectives of the Flood Study were to:

  • define existing flood behaviour for the mainstream flooding in the catchment.
  • define design flood levels, velocities and flow distributions for the catchment.
  • map the extent of flooding for the 100, 50, 20, 10 and 5 year ARI floods and Probable Maximum Flood (PMF) for the catchment.

Additional Information

Field Value
Title Allans Creek Flood Study
Publication Date 8 October 2003
Themes Land and Resource Management
Spatial Extent
© OpenStreetMap contributors
Council/LGA Wollongong City Council
Author/ Prepared by Lawson & Treloar
Publish date 27 June 2019
Update date 27 June 2019
Approval State Approved
Submitted for approval 27 June 2019
Submitted by Akhil Sud
Approved 27 June 2019
Approved by jhudson
Identifier 9615a050-f504-43f1-9694-d176f3a7c2a6