2021-01-18 GC - Item 3 - Attachment 3 - Cost Benefit Analysis for Coastal Erosion Options

Table C2       Teewah results (Net Present Value)

                           Dune (O2)          Nourish (O3)   Seawall (O4)   Acquisition    Leaseback
                                                                               (O5)           (O6)

 Central results         0.3                  -17            -67            16            9

 7% discount             0.1                  -2             -10            1             0.3
 rate
 20% increase in 0.3                          -20            -69            16            9
 implementation
 and
 management
 costs for all
 options
 Increase                0.3                  -27            -67            16            9
 frequency of
 beach
 nourishment
 from every 5
 years to every 3
 years (option 3)
 20% reduction           0.3                  -17            -55            9             6
 in tourism,
 recreation and
 non-use values
 Time period             0.3                  -13            -47            5             0.3
 2020-2080




AITHER | Final Report                                                                                  31
Noosa Shire Council – Coastal Hazard Adaptation Plan