Coastal Planning and Management 

Coastal Planning

Modelling the risk of erosion

Erosion risk has been modelled using 0.9m sea level rise and storm event scenarios and mapped to identify the potentially vulnerable areas of the City’s coastline.

The City's Interim Coastal Erosion Modelling is available by:

  • Visiting the Interim Coastal Erosion Modelling Maps page; or
  • Viewing the City’s Online Mapping system and selecting the Interim Coastal Adaption Area Layer (within the ‘General Enquiry’ module). The 150 metre setback line from Horizontal Setback Datum (HSD) indicates the minimum development setback from the coast.

The City will consider coastal erosion risk issues associated with any land use proposal between the existing coastline and 150 metre setback line on the maps.

Managing coastal erosion

The City of Busselton has implemented its second Coastal Management Program (2018-2028), which is a 10 year whole of coast strategy that covers the entire Geographe coastline.

More information on current coastal management can be found here.

The future in coastal planning

In July 2022, the Council adopted a Coastal Hazard Risk Management and Adaptation Plan (CHRMAP), in accordance with State Planning Policy 2.6 State Coastal Planning Policy (SPP2.6). The CHRMAP identifies the current and potential extent of risk (over the next 100 years) to private assets, public infrastructure and environmental/social/cultural values from coastal hazards, such as erosion and inundation, due to storm events and currently projected sea level rise. The CHRMAP also sets out a framework for recommended adaptation responses to identified risks.

Community consultation has contributed to the development of the CHRMAP through the Community Coastal Values Survey (2018) and several public information sessions. To find out further information on community and stakeholder consultation go to the City's Your Say Busselton engagement portal

Attachments

CHRMAP (Final) October 2022

Community Coastal Values Survey – Coastal Adaptation Research Report 2018

Related Information

Online Mapping

Interim Coastal Erosion Modelling Maps page

Coastal Management

Port Geographe - Geographe Bay Seagrass Study and Sand Modelling

Coastal hazard risk management and adaptation planning guidelines

CHRMAP Public Consultation (Your Say Busselton)

Coastal Management

The scenic coast of Geographe Bay is a sandy coastline that is naturally dynamic. The shoreline is sensitive to changing environmental conditions and cycles of accretion and erosion.

The Coastal Management Program (2018-2028) aims to facilitate strategic, effective and sustainable coastal adaptation along the Geographe Bay foreshore.  The program goes beyond just tracking the changes, it includes:

  • adaptation such a relocating or removing structures threatened by erosion
  • active sand nourishment programs to improve protection and retain the sandy beach
  • maintenance and adaptation of the more than 50 coastal protection structures along the Geographe Bay foreshore.

Over the 10 year time frame, detailed data collected through real-time observation and analysis will help us to facilitate strategic, effective and sustainable coastal adaptation. We will be able to plan for the future.

Below are links to some of the data that forms the foundation of our Program as well as links to coastal monitoring data and case studies.

June 2018 Storm Video

Related Information

Busselton Coastal Management 2020 – 2030

GIS Coastal Layer – City of Busselton

Sand Nourishment in Geographe Bay Fact Sheet

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