2019-07-09 P&E Agenda - Item 10 - Attachment 1 - Coastal Hazards Risk, Vulnerability and Adaptation Assessment

Noosa Shire Council Coastal Hazard Mapping                                                        III
Contents




      4.2    Assessment Results                                                                   33
5     Hazard Classification                                                                      34
      5.1    Introduction                                                                         34
      5.2    Storm Tide inundation                                                                34
      5.3    Permanent Inundation from Sea-level Rise                                             34
      5.4    Coastal Erosion                                                                      34
6     References                                                                                 36
Appendix A         Open Coast & Lower Noosa River Storm Tide Hazard Extent                       A-1
Appendix B         Coincident Catchment Flooding & Storm Tide Hazard Extent                      B-1
Appendix C         Storm Erosion Estimates                                                       C-1
Appendix D         Calculated Erosion Distance Hazard Extent                                     D-1
Appendix E         Permanent Inundation due to Sea-Level Rise Extent                             E-1

List of Figures
Figure 1-1      QCoast2100 Phases                                                                  2
Figure 2-1      100 year ARI surge plus tide boundary condition applied at the entrance to the
                Noosa River (Aurecon 2013)                                                         7
Figure 3-1      Erosion Assessment Locations                                                      12
Figure 3-2      Conceptual Illustration of the Open Coast Calculated Erosion Distance
                Formula                                                                           14
Figure 3-3      Example Design Erosion Setback at North Shore Beach (ETA 626 shown in
                Figure 3-1)                                                                       19
Figure 3-4      Bruun (1962) Concept of Recession due to Sea Level Rise                           24
Figure 3-5      Schematic Beach/Dune Cross Section Showing Pre and Post Erosion Dune
                Face and Dune Stability Profiles (from DECCW, 2010; after Nielsen et al.,
                1992)                                                                             29
Figure 5-1      Flood Hazard Classification and Curves2                                           35
Figure C-1      Storm Erosion Estimate: ETA 578 (top), ETA 582 (middle) and ETA 596
                (bottom)                                                                         C-2
Figure C-2      Storm Erosion Estimate: ETA 602 (top), ETA 621.2 (middle) and ETA 622
                (bottom)                                                                         C-3
Figure C-3      Storm Erosion Estimate: ETA 626 (top), ETA 628 (middle) and ETA 630
                (bottom)                                                                         C-4
Figure C-4      Storm Erosion Estimate: ETA 632 (top), ETA 634 (middle) and ETA 636
                (bottom)                                                                         C-5
Figure C-5      Storm Erosion Estimate: ETA 638 (top), ETA 636 (middle) and ETA 642
                (bottom)                                                                         C-6




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