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NSW Flood Data Portal

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Floodplain Risk Management Study

Lake Illawarra Floodplain Risk Management Study (Draft for Re-Exhibition)

The floodplain of the main body of Lake Illawarra has highly urbanised areas that extends to cover the suburbs of Windang, Oak Flats, Albion Park Rail, Yallah, Koonawarra, Kanahooka, Berkeley, Lake Heights, Kemblawarra and Primbee, on the south coast of NSW. The floodplain lies within both the Wollongong City Council and the Shellharbour City Council local government areas. The Lake is generally open to the sea through an entrance channel that has historically, during times of lower catchment flow, undergone a sediment accretion cycle thereby reducing the conveyance capacity of the channel. This channel has undergone change with the construction of breakwaters on both the southern and northern sides of the entrance over the past 10 years.

The main objective of this study is the identification and assessment of options and actions that could be implemented to manage the flood risk for the Lake Illawarra foreshore. There are three groups of management measures:

  • flood modification measures;
  • property modification measures (including climate change planning provisions); and
  • emergency response modification measures.

Specific options assessed include those identified and considered appropriate by the Committee.

Additional Information

Field Value
Title Lake Illawarra Floodplain Risk Management Study (Draft for Re-Exhibition)
Publication Date 1 April 2011
Themes Land and Resource Management
Spatial Extent
Map data © OpenStreetMap contributors
Council/LGA Wollongong City Council
Author/ Prepared by Cardno
Publish date 13 June 2019
Update date 28 June 2019
Approval State Approved
Submitted for approval 13 June 2019
Submitted by Akhil Sud
Approved 29 June 2019
Approved by dstazic
Identifier 4cda6096-2e91-4b59-967a-74b75986556e