Tweed Heads South levee and drainage study

We thank the community for their input to the initial survey, which closed on Sunday 6 August 2023. Community input has an important role in the study. It helps us understand your personal experiences from past flood events as well as identify potential flood risk management options.

We're now developing a new, detailed flood model of the river and stormwater drainage system across Tweed Heads South and Banora Point. Once the model is developed it will be calibrated against historic flood information which includes flood marks surveyed by Council as well as the survey responses you provided. Further community consultation will be conducted at appropriate stages of the project.

For more information visit yoursaytweed.com.au/ths-levee-drainage-study.

Project background

Tweed Shire Council, with support from the Department of Planning and Environment (DPE), has engaged flood specialists Catchment Simulation Solutions to prepare a detailed levee and drainage study for Tweed Heads South and Banora Point.

The study follows on from significant flooding in March 2017 as well as February and March 2022. These events caused widespread and devastating impacts on our community, property, business, industry and public infrastructure, including Tweed Heads South and Banora Point.

The current study will build upon the Tweed Valley Floodplain Risk Management Study that was completed in 2014. It will provide a detailed understanding of drainage behaviour behind the levee as well as the potential consequences of levee overtopping from riverine flooding, overland (i.e. flash) flooding, storm surge or a combination of both. This, in turn, will form the basis for investigating options that could be implemented to better manage the flood risk.