2021-01-18 GC - Item 3 - Attachment 4 - Cost Benefit Analysis for Noosaville Inundation Options

inundation. This is without factoring in the additional costs and community inconvenience which have
not been captured through this analysis. However, undertaking some form of protection through
levees and stormwater infrastructure modification, as demonstrated in option 1, is likely to provide net
benefits to the community. This is mostly driven by the prevention of future declines in tourism due
inundation. This option therefore merits further consideration and more detailed future assessments.

As discussed previously this analysis is a high-level, early stage assessment of the potential costs and
benefits of adaptation options for the Noosaville area. There is limited data on the expected impacts
and values for some of the costs and benefits. Some key assumptions in the analysis have a significant
effect on the results and should therefore be subject to further investigation prior to implementing
any project option. These assumptions and some proposed future work that can support future
assessments are set out in Table 4.




REPORT | Noosa Shire Council CHAP – Phase 7                                                            9