Options for the Lake Illawarra Entrance

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Consultation has concluded

Wollongong and Shellharbour City Councils are working together with the NSW Government to assess options for the Lake Illawarra Entrance.

The project, called the Lake Illawarra Entrance Options Study, is looking at options to manage the impacts and changes that have occurred around the lake entrance and lake entrance foreshore.

The community is now invited to share feedback on the options.


Background:

In 2007, Lake Illawarra was permanently opened, by building training walls where the lake meets the ocean (the entrance) by the former Lake Illawarra Authority. This was done to address several issues including water quality, odour and algal blooms. The permanent opening of the channel has led to some improvement in water quality but has created significant and unintended changes to the lake and its entrance channel.

The changes that have impacted the Lake include:

  • Increased erosion along the Windang foreshore
  • Movement of sand underneath the Windang bridge piers and need for protection works
  • The lake’s water level now constantly fluctuates with the ocean tides. This means the average water level has dropped, but the tidal range in the lake has increased, and is projected to continue to increase for a long time
  • Increasing tidal ranges within the lake that have led to impacts on key habitats including seagrass and saltmarsh
  • Undermining of built assets such as jetties and boat ramps

About the Study:

In 2020, Shellharbour and Wollongong Council created a Coastal Management Program (CMP) for Lake Illawarra to coordinate its management among stakeholders. Through strategic direction and actions, the CMP aims to address threats to the lake's value and sustainability. The Lake Illawarra Entrance Options Study is an action under the 'Manage the Entrance Channel (EC) ' strategy, one of nine management strategies identified.

The study is looking at options for managing the lake entrance, and parts of the foreshore within the entrance channel that are actively eroding. The study is considering a range of environmental, social, economic and cultural perspectives. The UNSW Water Research Laboratory (WRL) are the expert consultants doing the study. The study has been done in two stages.

Stage 1 - Initial work involved collecting data in and around the entrance and a literature review of the lake entrance and other similar lake systems. Over 50 possible management options were developed and reviewed to come up with a shortlist. You can find documents from Stage 1 in a folder on this page.

Stage 2 - We are currently in this stage. It has involved detailed assessment of the shortlisted options and now consultation with community.

Find out more 

You can find out more by:

  • Watching the video above which provides an overview of the Lake Entrance Options Study including the shortlist of options
  • Reading the FAQs
  • Reading the Summary (20 pages)
  • Reading the Study Report and Appendices

Printed information will be available at any of our Wollongong City Libraries.

You can also:

  • Talk to Council staff and the consultants at one of our drop-in information sessions:
    • Warilla Barrack Point Surf Life Saving Club – Friday 29 November, 1.00 - 3.00pm
    • Windang Senior Citizens Centre – Saturday 30 November, 10.30am - 12.30pm

If you have any accessibility needs or require further support to attend a drop-in session, please call 02 4227 7111.

Provide your feedback:

Please share your thoughts with us by 5pm 20 December 2024.


Accessibility and language assistance
If you are d/Deaf, hard of hearing, or have a speech or language difficulty, you can contact us through the National Relay Service on 133 677. If you need an interpreter, please use the Translating and Interpreting Service on 131 450. You'll need to provide our phone number when using these services, 02 4227 7111.



This project is supported by Wollongong City Council and Shellharbour City Council with technical and financial assistance provided by the NSW Government through its Coastal Management Program.


Wollongong and Shellharbour City Councils are working together with the NSW Government to assess options for the Lake Illawarra Entrance.

The project, called the Lake Illawarra Entrance Options Study, is looking at options to manage the impacts and changes that have occurred around the lake entrance and lake entrance foreshore.

The community is now invited to share feedback on the options.


Background:

In 2007, Lake Illawarra was permanently opened, by building training walls where the lake meets the ocean (the entrance) by the former Lake Illawarra Authority. This was done to address several issues including water quality, odour and algal blooms. The permanent opening of the channel has led to some improvement in water quality but has created significant and unintended changes to the lake and its entrance channel.

The changes that have impacted the Lake include:

  • Increased erosion along the Windang foreshore
  • Movement of sand underneath the Windang bridge piers and need for protection works
  • The lake’s water level now constantly fluctuates with the ocean tides. This means the average water level has dropped, but the tidal range in the lake has increased, and is projected to continue to increase for a long time
  • Increasing tidal ranges within the lake that have led to impacts on key habitats including seagrass and saltmarsh
  • Undermining of built assets such as jetties and boat ramps

About the Study:

In 2020, Shellharbour and Wollongong Council created a Coastal Management Program (CMP) for Lake Illawarra to coordinate its management among stakeholders. Through strategic direction and actions, the CMP aims to address threats to the lake's value and sustainability. The Lake Illawarra Entrance Options Study is an action under the 'Manage the Entrance Channel (EC) ' strategy, one of nine management strategies identified.

The study is looking at options for managing the lake entrance, and parts of the foreshore within the entrance channel that are actively eroding. The study is considering a range of environmental, social, economic and cultural perspectives. The UNSW Water Research Laboratory (WRL) are the expert consultants doing the study. The study has been done in two stages.

Stage 1 - Initial work involved collecting data in and around the entrance and a literature review of the lake entrance and other similar lake systems. Over 50 possible management options were developed and reviewed to come up with a shortlist. You can find documents from Stage 1 in a folder on this page.

Stage 2 - We are currently in this stage. It has involved detailed assessment of the shortlisted options and now consultation with community.

Find out more 

You can find out more by:

  • Watching the video above which provides an overview of the Lake Entrance Options Study including the shortlist of options
  • Reading the FAQs
  • Reading the Summary (20 pages)
  • Reading the Study Report and Appendices

Printed information will be available at any of our Wollongong City Libraries.

You can also:

  • Talk to Council staff and the consultants at one of our drop-in information sessions:
    • Warilla Barrack Point Surf Life Saving Club – Friday 29 November, 1.00 - 3.00pm
    • Windang Senior Citizens Centre – Saturday 30 November, 10.30am - 12.30pm

If you have any accessibility needs or require further support to attend a drop-in session, please call 02 4227 7111.

Provide your feedback:

Please share your thoughts with us by 5pm 20 December 2024.


Accessibility and language assistance
If you are d/Deaf, hard of hearing, or have a speech or language difficulty, you can contact us through the National Relay Service on 133 677. If you need an interpreter, please use the Translating and Interpreting Service on 131 450. You'll need to provide our phone number when using these services, 02 4227 7111.



This project is supported by Wollongong City Council and Shellharbour City Council with technical and financial assistance provided by the NSW Government through its Coastal Management Program.


Consultation has concluded
  • Next steps for managing the entrance of Lake Illawarra

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    Both Wollongong and Shellharbour City Council’s on the 26 and 27 of May resolved to call on the NSW Government to “resource and undertake a Strategic Business Case to deliver a long-term management solution” considering “Option 4 and Option 5 or variations thereof” from the Lake Illawarra Entrance Channel: Management Options Assessment report.

    In the interim, both councils resolved to complete further informing studies to support a business case and to investigate “short and medium-term foreshore protection works along the Windang foreshore” under the Coastal Management Program.

    The councils also resolved to further engage with the community and keep them informed of progress.

    You can read the full media release here - Councils call for support to pursue lake entrance management options | City of Wollongong

    Future updates and engagement opportunities

    For updates on projects and programs concerning Lake Illawarra, see the webpage here. Engagement for this project has now finished. For future opportunities to leave feedback and be involved on projects that matter to you and your community, head to Our Wollongong and register for our newsletter.

    Berkeley, let’s talk!

    On Tuesday 24 June, teams from Wollongong City Council will be heading to Berkeley Neighbourhood Centre, 40 Winnima Way, Berkeley for the afternoon. From 3:30 – 5:30pm, we will have staff available to chat through projects happening not just in Berkeley, but in the surrounding suburbs of Lake Heights, Cringila, Warrawong, Kemblawarra, Primbee and Windang. The team who led the Lake Illawarra Entrance Options Study will be there talking about what was heard during the engagement last year, and other works that are happening nearby the lake. Staff will also be able to give updates on the Southern Suburbs Community Centre and Library, plus give you information on services that Council offers that you may not have heard about.

    There is no presentation at this event, so drop-in any time that will suit you.

    We hope to see you there!

  • View the proposed next steps for this project in the 26 May Business Paper Item 2

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    Thank you for your participation and interest in the Lake Illawarra Entrance Options Study project.

    Engagement with our community took place from November – December 2024. Across Wollongong and Shellharbour local government areas, we heard from more than 550 voices.

    Incorporating what we heard from our community, we have put forward a series of recommendations as Item 2 in the Council Business Paper for the 26 May. In this Item 2, you will find Wollongong City Council’s recommendation for what the next steps for this project look like, background on the project, a summary of the consultation and communication, and the Engagement Report for both Wollongong and Shellharbour City Council.

    Councillors will evaluate the recommendations and decide whether to endorse the proposal.  If you would like to watch the Council meeting, you can watch all Council Meetings online via our webcast, or to watch in person, seats in the public gallery are available from 5.45pm. Note that if you're attending in-person, you must follow the Public Gallery Conduct Standards.

    Shellharbour City Council’s meeting will take place on Tuesday 27 May. Following this, we will look to contact you with the outcome of the two meetings and what our next steps on this project will be.

  • Engagement findings - March 2025

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    A big thank you for getting involved in the Lake Illawarra Entrance Options Study.

    Across Wollongong and Shellharbour local government areas, we heard from more than 550 voices! We got the word out about this project through the Our Wollongong and Let’s Chat websites, our social media channels, signs around the lake, e-newsletters, information at our libraries, newspapers, radio stations and local news channels. We spoke with many members of our community at our drop-in sessions at Warilla and Windang and online information sessions. We collected feedback through these conversations, as well as the online surveys set up on our engagement website, hard copy surveys and emails.


    Attendees of the community drop-in session at Windang Senior Citizens Centre on Saturday 30 November 2024.



    Pleasingly, a wide range of lake users and stakeholders were reflected with different ages, opinions and ideas for this shared asset.

    Our community’s responses were highly considered and showed a clear passion for preserving and protecting Lake Illawarra and all that it offers. One key theme that shone through the responses was about water quality and how it supports the ecology and recreational use of the lake.

    Managing the lake’s entrance remains a complex problem with no easy fix. Lots of respondents appreciated this and asked that we be measured in our approach to protect the many things Lake Illawarra means to our community.

    Next steps

    A report is being prepared to go before both Wollongong City Council and Shellharbour City Council in the coming months. It will include a thorough analysis of community feedback received on the management options, and recommendations for the next phase of this project.

    The community will be notified when these reports are confirmed to go before Council with instructions on how to tune in to the meeting.

    Your questions answered

    Throughout the engagement period we were asked many questions through emails, face-to-face conversations, phone calls and on our social media channels. We have updated the webpage here with answers to the most commonly asked questions – FAQs | Options for the Lake Illawarra Entrance | Our Wollongong

    A recording of the online engagement session held in December is available here with lots of great questions put to the project team by community members.

    Have something else you want to ask? You can call us on 4227 7111 or email council@wollongong.nsw.gov.au and one of our team’s members will get back to you.