PA2906-Coastal Hazard Assessment-R1 · MCU21/0212

                                          Internal use only




Contents
1           Introduction                                                                             5

2           Site Description                                                                        6
2.1         Development Proposal                                                                     6
2.2         Site Inspection                                                                          7
2.3         Geotechnical Investigations                                                              7
2.4         Survey                                                                                   7

3           Historical Aerial Photograph Analysis                                                   8

4           Queensland Planning Framework                                                           13
4.1         Planning Act 2016                                                                       13
4.2         Coastal Management Mapping                                                              13

5           Coastal Processes                                                                       16
5.1         Tides and Storm Tide                                                                    16
5.1.1       Astronomical Tides                                                                      16
5.1.2       Sea Level Rise                                                                          16
5.1.3       Storm Tide                                                                              16
5.2         Wave Climate                                                                            17
5.3         Sediment Transport                                                                      19

6           Erosion Prone Area                                                                      20
6.1         Erosion Prone Area Reassessment                                                         20
6.1.1       Long-term Erosion (N x R)                                                               21
6.1.2       Short-term Erosion (C)                                                                  21
6.1.3       Recession due to Sea Level Rise                                                         26
6.1.4       Dune Scarp Component                                                                    27
6.1.5       Summary of the Erosion Prone Area Reassessment                                          27

7           Coastal Building Line                                                                   29

8           Conclusion                                                                              30

9           References                                                                              31


Table of Tables
Table 1 Noosa Head Tidal Planes (Maritime Safety Queensland, 2021)                                  16
Table 2 Adopted Storm Tide Levels (excluding wave setup) for Sunshine Beach (Aurecon, 2013)         17
Table 3 Summary of Long-Term Recession Results from BMT (2018)                                      21

15 October 2021      66 SEAVIEW TERRACE, SUNSHINE BEACH        PA2906-RHD-ZZ-XX-RP-Z-0001     iii