Attachment C_R.B23636.001.02.SEMP_final_lowres

Noosa Spit SEMP Final Report                                                                                                                            74
Shoreline Erosion Mitigation Options

                                                      Table 4-5        Summary of MCA Results Developed with the PCG

                                               Effectiveness         Whole of Life     Environmental    Social Benefits        Risk
                                                                       Costs              Values                                            Overall Score
                                              (30% weighting)      (20% weighting)    (15% weighting)   (10% weighting)   (25% weighting)
Option 1a – Sand plug at either end of
                                                    100%                   50%              50%             100%              100%              83%
Dog Beach and shoreline nourishment
Option 1b – Sand plug at the southern
end of Dog Beach and shoreline                       75%                   25%              25%              75%               75%              58%
nourishment
Option 2 – Extension of the existing
training wall/groyne at western end of               75%                   75%              50%              50%               75%              69%
Dog Beach
Option 3 – Extension of submerged
                                                     25%                   75%              50%               0%                0%              30%
breakwater and two new groynes
Option 4 – Three new short groynes at
                                                     50%                   100%             50%              50%               75%              66%
Dog Beach
Option 5 – Shore parallel seawall                   100%                   25%              25%              25%               75%              60%
Option 6 – Do nothing                                0%                    100%             25%               0%                0%              24%




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