2021-01-18 GC - Item 3 - Attachment 1 - Coastal Hazards Adaptation Plan for Community Consultation

        Appendix 4: Noosa Shire Council – Coastal Hazards Risk Assessment Consequence Criteria
               ............................................................................................................................. 124
        Appendix 5: Adaptation Options Multi-Criteria Analysis Assessment Criteria ..................... 126




Figure 1 - Process for developing a Coastal Hazards Adaptation Plan............................................ 5
Figure 2 - Noosa's coastal zone and CHAP study area ................................................................... 8
Figure 3 – Example of coastal erosion processes and projections at Peregian Beach .................. 13
Figure 4 - Erosion Prone Area during a 100 ARI marine storm event in 2100 ............................... 14
Figure 5 - Area of land subject to permanent tidal inundation in 2100 ........................................... 15
Figure 6 - Normal tide versus Storm tide (source: Cassowary Coast Regional Council) ................ 16
Figure 7 – Indicative example of increasing extent of storm tide inundation at Gympie Terrace from
2020 to 2100, due to sea level rise ............................................................................................... 17
Figure 8 - Area of land subject to a 100 ARI storm tide event in 2100 ........................................... 18
Figure 9 - Risk tolerance scale applied in Phase 5 ........................................................................ 21


Table 1: calculating risk................................................................................................................. 20
Table 2 - Adaptation options assessment criteria .......................................................................... 23
Table 3 - Change in Peregian Beach asset risk profiles across planning horizons ........................ 33
Table 4 - Change in Marcus Beach and Castaways Beach asset risk profiles across planning
horizons ........................................................................................................................................ 36
Table 5 - Change in Sunrise Beach asset risk profiles across planning horizons .......................... 39
Table 6 - Change in Sunshine Beach asset risk profiles across planning horizons ....................... 39
Table 7 - Change in Teewah and Noosa North Shore asset erosion risk profiles across planning
horizons ........................................................................................................................................ 43
Table 8 - Change in Noosa North Shore asset inundation risk profiles across planning horizons .. 45
Table 9 - Change in Noosa Heads asset erosion risk profiles across planning horizons ............... 48
Table 10 - Change in Noosa Heads asset inundation risk profiles across planning horizons ......... 50
Table 11 - Change in Noosaville asset risk profiles across planning horizons ............................... 53
Table 12 - Change in Tewantin asset risk profiles across planning horizons ................................. 55
Table 13 - Change in locality asset risk profiles across planning horizons .................................... 57




Noosa Council – Coastal Hazards Adaptation Plan 2020 - 2030 (community consultation version)