24-01-2020 - Appeal No. 245 of 2019 - Final Order of Judge Rackemann · 51987.2951.01

Working Notes:
M Design and Fourteen Enterprises Pty Ltd as trustee v Noosa Shire Council -
42 Seaview Terrace, Sunshine Beach


                                                         ETA 602.00
                           8
                           7                                                              Elevation (m AHD)
                           6                                                              HAT (m AHD)
                           5                                                              Vellinga Storm Profile
                            Dune
                           4                                                              Storm Tide (m AHD)
       Elevation (m AHD)




                           3
                           2
                           1
                           0
                           -1
                           -2
                           -3
                           -4
                           -5
                                -100    -50        0          50        100         150            200             250
                                                              Chainage (m)


Figure 5-2 Modelled post-storm profiles at Sunshine Beach based on Vellinga (1983)

Table 5-2 Summary of Long Term Recession Results from BMT WBM (2018)
 Beach                Profile     Storm Tide        Significant Wave                          Modelled Short-term
 Compartment                       (m AHD)             Height (m)                                Erosion (m)
 Sunshine Beach                        ETA 602.0       1.74                   5.5                         41



6.3.                 Recession due to Sea Level Rise
As discussed in section 3.1.3 sea levels are predicted to rise in response to climate change and the
Queensland Government have adopted a sea level rise of 0.8 metres above present day mean sea
level by the year 2100. The Department of Environment and Heritage Protection (2013) requires the
shoreline response to sea level rise be considered when assessing erosion prone area widths.

An industry standard practice for the assessment of shoreline recession due to sea level rise is to use
the ‘Bruun Rule’ developed by Bruun (1962), see Figure 5-3. The ‘Bruun Rule’ was adopted by BMT
WBM (2018) for phase 3 of the Coastal Hazards Adaptation Strategy investigations.




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