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Risk Analysis Erosion Protection Structures Byron Bay Embayment

In 2010 Council resolved (resolution 10-754) to undertake a risk analysis of erosion protection structures in the Byron Bay Embayment. This was identified as an urgent priority action (2.2.2) in the 2010 Draft Coastal Zone Management Plan for Byron Shire Coastline.

The objective of the project was to conduct a risk assessment of the public and privately constructed erosion protection structures in the Byron Bay Embayment with regard to the following issues:

  1. design and capability to withstand a large or extreme coastal storm event or series of events (design storm);
  2. design and capability to withstand a large or extreme coastal storm event or series of events (design storm);
  3. structural integrity and potential risks to the general public and private landowner safety under a range of conditions;
  4. the physical impact of natural coastal processes interacting with the structures, on both public and private lands;
  5. the environmental impact of natural coastal processes interacting with the structures, on both public and private lands;  and
  6. impacts on beach access and beach amenity.

Council engaged the consultants WorleyParsons in April 2012 to undertake the project. The methodology included a site inspection by the consultant and a technical workshop with agency stakeholders. The consultant also conducted a workshop with Councillors on the 7 March 2013 to provide an overview of the final report.

The final report: Byron Bay Erosion Protection Structures – Risk Assessment, was noted by Council on 28 February 2013 (resolution 13-119). It is envisaged that the report will help to inform the development of the draft Coastal Zone Management Plan for the Byron Bay Embayment.

The project was conducted under the Natural Disaster Resilience Program, as described in the National Partnership Agreement on Natural Disaster Resilience and the NSW Implementation Plan 2010/11. Under the program, the State and Commonwealth Government contributed funding (two thirds of project costs) towards the project.