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Managing Flood Risk in the Collins Creek Catchment

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Consultation has concluded

Darragh Drive, Figtree experiencing peak stage flood in October 1999

We’ve completed several studies to assess the flood risk within the Collins Creek Catchment. The risks are to people, property, infrastructure (e.g. roads and stormwater pipes) and assets (e.g. public parks and recreation areas). We’re now working on a Floodplain Risk Management Plan to look at ways to manage flood risk.

Measures used for managing flood risk
These measures might include groundworks in the catchment (e.g. drainage improvements and levees) to protect existing development and assets. We also consider using development controls and planning measures to reduce the risk of flooding to future development in the catchment. In addition, evacuation and emergency response planning will also be part of our approach to managing flood risk.

We’re asking the community to be involved in this flood risk management planning. We’d like to know where you think we should be focusing our efforts to protect existing homes, businesses, roads and other assets from flooding. We’d like you to be part of planning for flood-safe development into the future. We’ll work alongside the community and the State Emergency Service (NSW SES) so we can all respond to flooding in a coordinated, efficient and practical way.

Previous Community Input
The community has provided valuable input to previous flood investigations within the Collins Creek catchment. In 2014, they shared feedback with us as part of the previous Collins Creek Floodplain Risk Management Study. They provided accounts of their observations of previous flooding and shared feedback on the flood mapping through an online survey and community drop-in session. This input helped us to assess the suitability of a range of flood management measures for the catchment.

Flood risk management measures for the Collins Creek catchment
Using the previous flood investigations and input from the community, we’ve assessed a range of flood management measures for their suitability in reducing flood risk in the Collins Creek catchment. These include engineering works, vegetation management, development controls, planning measures and emergency response arrangements. All options to mitigate risks have been developed through analysis and investigation and will require further planning to inform future infrastructure delivery programs. These are some examples of each of these measures:

Engineering structures

Debris control structuresImproving drainage

Property modifications (existing development)

Voluntary house purchase

House raising

Development controls (future development)

Minimum floor levels


Emergency response and community awareness

Flood warning signsFlood plan


Learn more and help with our planning
To find out more about the process for managing flood risk and how you can be involved in our planning:

Drop-in information session
At this session, we’ll have maps showing the location of the recommended measures for managing flood risk. The flood engineers who are working on the Floodplain Risk Management Study and Plan for this catchment will be there to answer your questions, explain what is being planned and how the proposed measures will help manage flood risks. There is no presentation to start, so you can turn up at any time during the session.

Date: Wednesday 6 March 2024
Time: Drop in anytime between 3:30-6:30pm
Where: Bulli Senior Citizens Centre, 8 Hospital Rd, Bulli

Accessibility, mobility or 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. If you would like to attend the information sessions and have accessibility or mobility requirements, please let us know how we can support your attendance. We can also arrange for an interpreter to come along to help residents who have difficulty communicating in English. To arrange support, please contact engagement@wollongong.nsw.gov.au

Join the conversation
Share your feedback with the project team by 25 March 2024. Submissions become public documents and may be viewed by other persons on request. Please read Council's Privacy Policy before submitting your feedback.

We’ve completed several studies to assess the flood risk within the Collins Creek Catchment. The risks are to people, property, infrastructure (e.g. roads and stormwater pipes) and assets (e.g. public parks and recreation areas). We’re now working on a Floodplain Risk Management Plan to look at ways to manage flood risk.

Measures used for managing flood risk
These measures might include groundworks in the catchment (e.g. drainage improvements and levees) to protect existing development and assets. We also consider using development controls and planning measures to reduce the risk of flooding to future development in the catchment. In addition, evacuation and emergency response planning will also be part of our approach to managing flood risk.

We’re asking the community to be involved in this flood risk management planning. We’d like to know where you think we should be focusing our efforts to protect existing homes, businesses, roads and other assets from flooding. We’d like you to be part of planning for flood-safe development into the future. We’ll work alongside the community and the State Emergency Service (NSW SES) so we can all respond to flooding in a coordinated, efficient and practical way.

Previous Community Input
The community has provided valuable input to previous flood investigations within the Collins Creek catchment. In 2014, they shared feedback with us as part of the previous Collins Creek Floodplain Risk Management Study. They provided accounts of their observations of previous flooding and shared feedback on the flood mapping through an online survey and community drop-in session. This input helped us to assess the suitability of a range of flood management measures for the catchment.

Flood risk management measures for the Collins Creek catchment
Using the previous flood investigations and input from the community, we’ve assessed a range of flood management measures for their suitability in reducing flood risk in the Collins Creek catchment. These include engineering works, vegetation management, development controls, planning measures and emergency response arrangements. All options to mitigate risks have been developed through analysis and investigation and will require further planning to inform future infrastructure delivery programs. These are some examples of each of these measures:

Engineering structures

Debris control structuresImproving drainage

Property modifications (existing development)

Voluntary house purchase

House raising

Development controls (future development)

Minimum floor levels


Emergency response and community awareness

Flood warning signsFlood plan


Learn more and help with our planning
To find out more about the process for managing flood risk and how you can be involved in our planning:

Drop-in information session
At this session, we’ll have maps showing the location of the recommended measures for managing flood risk. The flood engineers who are working on the Floodplain Risk Management Study and Plan for this catchment will be there to answer your questions, explain what is being planned and how the proposed measures will help manage flood risks. There is no presentation to start, so you can turn up at any time during the session.

Date: Wednesday 6 March 2024
Time: Drop in anytime between 3:30-6:30pm
Where: Bulli Senior Citizens Centre, 8 Hospital Rd, Bulli

Accessibility, mobility or 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. If you would like to attend the information sessions and have accessibility or mobility requirements, please let us know how we can support your attendance. We can also arrange for an interpreter to come along to help residents who have difficulty communicating in English. To arrange support, please contact engagement@wollongong.nsw.gov.au

Join the conversation
Share your feedback with the project team by 25 March 2024. Submissions become public documents and may be viewed by other persons on request. Please read Council's Privacy Policy before submitting your feedback.