We’re working with community and other stakeholders to better manage flood risks in Bulli and Thirroul.

We’ve prepared a draft Hewitts Creek Floodplain Risk Management Study and Plan, which focuses on parts of Bulli and Thirroul. This study and plan looks at how flooding affects people, homes, infrastructure like roads and stormwater pipes, and public spaces likes parks and recreation areas. It identifies flood risks and looks at what we can do to reduce and manage those risks.

The study area covers several local waterways, including Slacky Creek, Tramway Creek, Woodlands Creek, Hewitts Creek, and Thomas Gibson Creek.

Overview of the study and plan

The draft Hewitts Creek Floodplain Risk Management Study and Plan outlines the potential risks and impacts of floods and recommends practical ways to reduce current and future flood risks. These findings will help us to guide future planning and development in this area.

As part of this study, we’ve identified several options (or measures) to help in managing flood risk in Bulli and Thirroul. These include:

Flood Modification Measures

These are built structures that help to control floodwater and reduce impact on public and private assets. They can also help our drains and culverts to keep free from blockage during big storms. Examples include levees, detention basins, and debris control measures.

Response Modification Measures

These help our community better prepare for and respond to floods by improving awareness and communication. Examples include emergency plans, flood warnings, and community education.

Property Modification Measures

These involve change/addition of flood planning controls for future developments (buildings, roads and others) to ensure that land uses are compatible with flood risk. It can also include voluntary house raising and purchase, or flood-proofing of buildings, which can reduce flood damages.

You can learn more about this Study and Plan by

• Reading the draft Floodplain Risk Management Study and Plan
• Looking at the map with the proposed Flood Mitigation Measures (more information on these are available on page 84 of the Study and Plan)
• Looking at the flood maps
• Reading about the proposed Response Modification and Property Modification Measures
• Reading the FAQs

You can visit Wollongong or Thirroul libraries to view printed copies of all the material.

We've also got lots of information and resources on things like creek maintenance, stormwater maintenance and flooding information. Look at the Important Links to find out more. You can also watch some short videos about flooding in Wollongong.

Share your thoughts by:

• Completing the online feedback form
• Emailing engagement@wollongong.nsw.gov.au
• Writing to The Engagement Team, Wollongong City Council, Locked Bag 8821 WOLLONGONG DC NSW 2500
• Phoning 4227 7111

You can also drop into our Let's Talk Thirroul session on Friday 29 August anytime between 3:30-5:30pm. No bookings necessary.

Feedback is open from 25 August to 26 September 2025.

Your input will help shape the final plan and guide future flood management in your community.

Please note, any submissions become public documents and may be viewed by other persons on request. Please read Council's Privacy Policy before submitting your feedback.

Accessibility and language assistance

If you’re d/Deaf, hard of hearing or have a speech or language difficulty, you can contact us through the National Relay Service. If you need an interpreter, you can contact us through the Translating and Interpreting Service on 131 450. You’ll need to provide our phone number 02 4227 7111 for either service.