Erosion prone areas
The erosion prone area is the width of the coast that is considered to be vulnerable to coastal erosion and tidal inundation.
Calculation of the erosion prone area is based on:
- a sea level rise factor of 0.8 metres
- a short-term erosion component from extreme storm events
- a long-term erosion component where gradual erosion is occurring commonly from channel migration or a sediment supply deficit
- a dune scarp component, where slumping of the scarp face occurs following erosion
- erosion risk due to future sea level rise from climate change both by permanent inundation of land by tidal water and the morphological response of the coast to elevated water level
- a 40% safety factor.
The Coastal hazard technical guide (PDF, 348KB) provides additional information on coastal erosion and storm tide inundation and assessment of erosion prone area widths.
Read more about shoreline erosion management planning.
Erosion prone area plans
Erosion prone areas have been declared for all coastal local government areas in Queensland.
These areas are shown on erosion prone area plans.
These plans are used for development assessment purposes, and to inform the preparation of planning instruments, such as planning schemes and regional plans under the Planning Act 2016.
The plans are listed by local government area in the following table.
Changing the erosion prone area
The erosion prone area plans are updated periodically as more detailed on-ground studies are incorporated into the mapping.
Any dispute about the extent of the erosion prone area must be accompanied by a report from a suitably qualified person using the methodology outlined in the Coastal hazard technical guide (PDF, 348KB).
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