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2021-01-18 GC - Item 3 - Attachment 2 - Phase 7 Project Summary Coastal Hazards Adaptation Plan
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Log in to see the plans as drawn Noosa Shire Council Coastal Hazard Adaptation Plan: Project Summary 26
Findings
Erosion Sea Level Rise Storm Tide
Reporting
Present
Present
Asset
2040
2070
2100
2040
2070
2100
2040
2070
2100
Area
day
day
Residential areas (incl. islands), H
H
Noosa Marina
Lake Doonella conservation areas H H
Residential areas H VH VH H H H
Roads H VH VH
Noosa North Rural Fire Brigade H VH H
Shore
Critical infrastructure (electrical H
H
etc.)
Noosa Ferry VH VH H
Lake Boreen Point campground H
Cootharaba Conservation areas H H H H
The detailed risk assessment is available in Appendix B.
3.5 Phase 6: Options Assessment
Options to mitigate high and very high risks within each locality were considered, and the analysis
tables are provided in Appendix C. Within the adaptation pathway, highly ranked, “no regrets” options
will tend to be most suitable for short-term implementation over expensive or complex options.
The desired stakeholder outcomes for all open coast beaches focussed on the retention of the beach
and dune system, and the mitigation against erosion risks to built assets in key locations.
Maintenance of the existing dune systems, supported by complementary measures of community
education, detailed studies (where appropriate) and monitoring all ranked highly for addressing risks
to natural and built assets exposed to erosion hazards. There was also a high level of tolerance for
some instances of storm-tide inundation where it already occurs.
3.5.1 Eastern Beaches (Peregian to Sunshine Beach)
At Peregian, the wide and relatively intact dune system buffers built assets from impacts under most
planning horizons. Continued maintenance of this buffer was the highest ranked option for this area.
Community infrastructure management at Peregian Park and the Peregian Surf Life Saving Club,
buy back of privately-owned land parcels and beach nourishment/dune augmentation to delay
impacts were ranked significantly higher than asset relocation and seawalls.
No high or very high risks were identified for Marcus Beach therefore an MCA was not undertaken
for this locality.
The David Low Way crossing of Burgess Creek is a critical area at Castaways and Sunrise Beaches
requiring risk treatment. While maintenance of the existing dune ranked highly due to its relatively
low costs, other highly ranked measures included manual creek mouth management and beach
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