Ballina News
Understanding the impacts of overland flooding and stormwater in Ballina Shire
Understanding the impacts of overland flooding and stormwater in Ballina Shire
By Robert Heyward
To enhance community resilience, Ballina Shire Council is committed to better preparing the community to withstand the challenges and impacts of future flood events.
“This work involves conducting detailed flood mapping and modelling projects to better understand flooding, identify ways to minimise its impact, and incorporate effective mitigation strategies into the
region’s future plans,” said Paul Crozier, Manager Engineering Works at Ballina Shire Council.
“To enhance the accuracy of flood modelling across Ballina Shire, we are inviting the community to share descriptions and photos of observed overland flooding.”
“This includes detailed accounts from the March 2022 flood event to help refine and calibrate the models. Information from other significant rainfall events is also valuable and welcomed.”
Current public consultations are underway for several key studies in Ballina Shire, including the Ballina Island and West Ballina Local Stormwater Drainage Management Study and Stormwater Masterplan (SWMP), as well as the Alstonville, Wardell, and Lennox Head Overland Flood Studies.
These studies focus on overland flooding, which occurs when heavy rainfall exceeds the capacity of the drainage system, causing water to flow over land. This type of flooding commonly affects streets, yards, and low-lying areas where water accumulates and cannot drain quickly enough.
The SWMP and flood studies aim to:
- Assess the current capacity of the stormwater drainage system.
- Model and map overland flooding during various storm scenarios, including the significant March 2022 storm.
- Pinpoint areas prone to flooding due to stormwater limitations.
- Propose potential stormwater system upgrades to reduce future flooding risks.
Community members are invited to participate in an online survey from 20 November to 20 December 2024.
Details about the studies, along with the survey link, are available on the Council’s YourSay page.
Findings from the studies will be showcased in a public exhibition in 2025. The insights gathered will play a vital role in enhancing town planning, guiding future development, and improving emergency responses to future storm events.
These initiatives are funded by Ballina Shire Council in partnership with the NSW Department of Climate Change, Energy, the Environment and Water (DCCEEW).
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