Draft Coffs Harbour Northern LGA Flood Study

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Consultation has concluded

Thank you to everyone who provided feedback on the draft Coffs Harbour Northern LGA Flood Study.

The study was endorsed by theCouncil on 14 December 2023.


The study looks at the coastal catchments of Corindi River, Arrawarra Creek, Darkum Creek, Willis Creek, Double Crossing Creek (Hearnes Lake) and Fiddamans Creek.

What is the flood study about?

This is the first stage of the floodplain management process.
This will help us understand the risk of potential flooding in the local area and assist with future development, planning, community education and mitigation work.
Proving the City with a new flood models using the latest modelling, technology and data.

The draft study will help to understand the nature and extent of potential flooding from Corindi River, Arrawarra Creek, Darkum Creek, Willis Creek, Double Crossing Creek (Hearnes Lake) and Fiddamans Creek. Villages in the study area include Corindi Beach, Red Rock, Arrawarra Safety Beach, Sandy Beach, Emerald Beach (see map).

In February 2021 there was a significant rainfall event larger than previously observed within the Corindi River Catchment. Data collected from this flood event formed a key part of the calibration of this flood model. The new flood models developed for the Corindi River and Arrawarra Creek aligns to the observed levels in the 2012 and 2021 flood events.



Thank you to everyone who provided feedback on the draft Coffs Harbour Northern LGA Flood Study.

The study was endorsed by theCouncil on 14 December 2023.


The study looks at the coastal catchments of Corindi River, Arrawarra Creek, Darkum Creek, Willis Creek, Double Crossing Creek (Hearnes Lake) and Fiddamans Creek.

What is the flood study about?

This is the first stage of the floodplain management process.
This will help us understand the risk of potential flooding in the local area and assist with future development, planning, community education and mitigation work.
Proving the City with a new flood models using the latest modelling, technology and data.

The draft study will help to understand the nature and extent of potential flooding from Corindi River, Arrawarra Creek, Darkum Creek, Willis Creek, Double Crossing Creek (Hearnes Lake) and Fiddamans Creek. Villages in the study area include Corindi Beach, Red Rock, Arrawarra Safety Beach, Sandy Beach, Emerald Beach (see map).

In February 2021 there was a significant rainfall event larger than previously observed within the Corindi River Catchment. Data collected from this flood event formed a key part of the calibration of this flood model. The new flood models developed for the Corindi River and Arrawarra Creek aligns to the observed levels in the 2012 and 2021 flood events.



Consultation has concluded

  • The Floodplain Management Process

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    CLOSED: This discussion has concluded.

    This Coffs Harbour Northern LGA Flood Study is supported by the NSW Government’s Floodplain Management Program which aims to reduce the impacts of flooding and flood liability on individual owners and occupiers, and to minimise private and public losses resulting from flooding. Under the Program, local government is responsible for managing flood liable land. The Flood Study is the first stage in the process and on commencement all available information, including valuable community knowledge and experiences will be collected, compiled and reviewed. The project will provide detailed mapping, which will give Council a better understanding of the current flood risk to the community and support a range of Council functions including development, planning, community education and mitigation works. This project has been titled Coffs Harbour Northern LGA Flood Study. The project is being undertaken in:

    • consistency with the NSW Floodplain Development Manual 2005
    • consistency with national best practice,
    • compatibility with future climate change scenarios,
    • consistency with the transparent mapping needs of the Council