ECM_22343537_v1_Coastal Hazard Assessment

                                                          Internal use only




              Contents
              1           Introduction                                                      6

              2           Site Description                                                  7
              2.1         Development Proposal                                              7
              2.2         Site Inspection                                                   8
              2.3         Geotechnical Investigations                                       8
              2.4         Survey                                                            8

              3           Historical Aerial Photograph Analysis                             9
              3.1         Satellite Imagery                                                13

              4           Queensland Planning Framework                                    17
              4.1         Planning Act 2016                                                17
              4.2         Coastal Management Mapping                                       17

              5           Coastal Processes                                                20
              5.1         Tides and Storm Tide                                             20
              5.1.1       Astronomical Tides                                               20
              5.1.2       Sea Level Rise                                                   20
              5.1.3       Storm Tide                                                       21
              5.2         Wave Climate                                                     21
              5.3         Sediment Transport                                               23

              6           Erosion Prone Area                                               24
              6.1         Erosion Prone Area Reassessment                                  24
              6.1.1       Long-term Erosion (N x R)                                        25
              6.1.2       Short-term Erosion (C)                                           26
              6.1.3       Recession due to Sea Level Rise (S)                              29
              6.1.4       Dune Scarp Component                                             30
              6.1.5       Summary of the Erosion Prone Area Reassessment                   31

              7           Coastal Building Line                                            33

              8           Conclusion                                                       34

              9           References                                                       35




              13 February 2023         2 ARAKOON CRESCENT, SUNSHINE BEACH     PA3303   3


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