ECM_22343537_v1_Coastal Hazard Assessment

                                                          Internal use only




              Table of Tables
              Table 1 Noosa Head Tidal Planes (Maritime Safety Queensland, 2023)                           20
              Table 2 Adopted Storm Tide Levels (excluding wave setup) for Sunshine Beach                  21
              Table 3 Summary of Long-Term Recession Results from BMT (2018)                               25
              Table 4 Design Storm Events for Short-term Beach Erosion Assessment                          27
              Table 5 Predicted Short-term Erosion - Sunshine Beach                                        28
              Table 6: Summary of Shoreline Recession due to Sea Level Rise.                               30
              Table 8 Summary of Dune Scarp                                                                31
              Table 9 Reassessed Erosion Prone Area for 2 Arakoon Crescent, Sunshine Beach                 31



              Table of Figures
              Figure 1 Site Location                                                                        7
              Figure 2 1972 Aerial Photograph (qimagery.information.qld.gov.au)                             9
              Figure 3 1974 Aerial Photograph (qimagery.information.qld.gov.au)                            10
              Figure 4 1981 Aerial Photograph (qimagery.information.qld.gov.au)                            10
              Figure 5 1988 Aerial Photograph (qimagery.information.qld.gov.au)                            11
              Figure 6 1994 Aerial Photograph (qimagery.information.qld.gov.au)                            11
              Figure 7 1999 Aerial Photograph (qimagery.information.qld.gov.au)                            12
              Figure 8 2004 Aerial Photograph (qimagery.information.qld.gov.au                             12
              Figure 9 2017 Aerial Photograph (qimagery.information.qld.gov.au                             13
              Figure 10: DEA recession analysis near the site.                                             14
              Figure 11 DEA Annual Coastlines near the site.                                               15
              Figure 12: CoastSat shoreline position timeseries approximately 10m south of the site.       16
              Figure 13 Coastal Management District (source: SARA DA Mapping System)                       18
              Figure 14 Erosion Prone Area (source: SARA DA Mapping System)                                18
              Figure 15 Coastal Building Line (source: SARA DA Mapping System)                             19
              Figure 15 Wave Rose for Sunshine Beach (BMT, 2013)                                           22
              Figure 16 Offshore Significant Wave Height Design Curves (BMT, 2013)                         22
              Figure 18 Sketch of pre-storm and predicted post-storm profiles based on Vellinga (1983)     26
              Figure 19 100-year ARI storm profile at 2 Arakoon Crescent for current climate               28
              Figure 20 Extreme storm event profile at 2 Arakoon Crescent for current climate              28
              Figure 21 Conceptualisation of recession due to sea level rise due to Bruun Rule             29
              Figure 22 Dune slumping assessment                                                           30
              Figure 23 Extent of the reassessed erosion prone area                                        32



              13 February 2023         2 ARAKOON CRESCENT, SUNSHINE BEACH                 PA3303       4


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