ECM_22343537_v1_Coastal Hazard Assessment · 132000.200173.1

                                                          Internal use only




              8           Conclusion
              A detailed coastal engineering assessment has been undertaken to assess the vulnerability to erosion of
              the beach adjacent to 2 Arakoon Crescent, Sunshine Beach, Noosa Shire. The methodology adopted for
              this report is based on best practice and is appropriate for risk assessment in relation to the proposed
              development and the coastal hazard associated with beach erosion for the section of beach in the vicinity
              of 2 Arakoon Crescent, Sunshine Beach.

              This assessment has found that the subject property and house is unlikely to be subject to erosion from
              the sea during the expected asset lifespan (i.e. 60 years for a residential house) based on an extreme
              event described in Table 4. It should be noted that the beach is currently in a state of recovery, with the
              toe of the frontal dune more landward then usual and when combined with a safety factor of 1.4, the
              erosion prone area assessment is conservative. The assessment also found that the proposed
              development will not impact on the future coastal management option for this section of Sunshine Beach.

              The results from this assessment have determined a site-specific slope stability assessment is not
              required (Figure 20). However, advice from a Geotechnical expert to inform the design the house is
              recommended to accommodate the management measures in the Landslide Risk Management Manual
              (Australian Geomechanics, 2007) are considered and adopted where suitable.

              Construction of the proposed house at 2 Arakoon Crescent, Sunshine Beach as shown in Appendix A,
              with appropriate foundation design, would not adversely impact coastal processes and would not affect
              the future coastal management options for this section of Sunshine Beach.




              13 February 2023         2 ARAKOON CRESCENT, SUNSHINE BEACH                          PA3303       34


Document Set ID: 22343537
Version: 1, Version Date: 16/03/2023