2021-10-08 SM - Item 1 - Attachment 2 - Draft Coastal Hazards Adaptation Plan - tracked changes

Adaptation outcomes and associated actions for Tewantin

The assessment of inundation risks to Tewantin show the level of risk across all asset types in
areas adjacent to the Noosa River will very likely become intolerable within 50 years.

Analysis of socio-economic, environmental, and governance considerations, as well as community
input received throughout the CHAP’s development, indicate the most appropriate adaptation
pathway for responding to inundation risks in this locality is one that supports existing recreational
and visual amenity values, as well as accessibility and infrastructure services. Therefore, the
preferred adaptation outcomes for this locality are:

    -   Implement measures that protect important recreational areas, stormwater network, road
        and footpath assets from periodic tidal inundation
    -   Where possible, re-locate major recreational and infrastructure assets (e.g. amenities
        blocks, the Tewantin water park) outside the projected high-risk foreshore areas by 2070
    -   Where important recreational assets cannot be feasibly re-located, seek to accommodate
        the risks by adapting the design of these assets (e.g. adaptive landscape design) to be
        more resilient
    -   Re-design important road and buried service infrastructure networks to be more resilient to
        inundation hazards.


Figure 20 shows the expected progression of these preferred outcomes between 2020 and 2100.
Table 21. provides a breakdown of actions in support of these outcomes, to be pursued within the
five year life of this plan.




 Figure 20 - Preferredroposed long-term adaptation pathway response to projected coastal inundation risks in Tewantin




Noosa Council – Coastal Hazards Adaptation Plan 2020 - 2030                                                  Page 65