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

           Asset Type                                Erosion Risks by Year
                                Present Day             2040               2070                2100
           Business                                               Low
           Residential                         Low                        Medium               High
                     16
           Tourism                   Low              Medium                         High
           Infrastructure17        Medium                                   High
           Recreational                                           Low
           Natural                   Low                                  Medium
        Table 11 - Change in Teewah and Noosa North Shore asset erosion risk profiles across planning horizons


At present, the only methods for mitigating the risks at Teewah and along Teewah Beach are:

    -    Existing vegetated dune areas, which act as a natural buffer to erosion by dispersing wave
         energy during storm events
    -    Planning controls on coastal development that prevent encroachment into the vegetated
         dune areas, thereby preserving natural coastal processes of erosion and accretion.


Erosion Aadaptation outcomes and associated actions – Erosionfor Noosa North Shore and
Teewah

The assessment of erosion risks in along the open beaches of Noosa North Shore and at the
Teewah township show the level of risk to most assets is acceptable for much of the planning
period. However, there are likely tomay be intolerable risks to the camp ground and Teewah road
access by mid-century, as well as to some private houses by 2100.

Analysis of economic, social, and environmental considerations, as well as input from the Noosa
community indicates the most suitable adaptation pathway in this locality for responding to coastal
erosion is one that supports natural coastal processes and existing beach use and amenity values
by implementing natural coastal protection solutions and transitioning public recreational and
infrastructure away from high erosion risk areas over the medium term.

As a result, the preferred adaptation outcomes in response to these erosion risks are:

    -    Implement measures that support and enhance dunes, beach health and natural coastal
         processes as soon as possible
    -    Prevent the construction of hard protective structures where possible that are likely to
         exacerbate erosion risk, impact on preferred outcomes for dune and beach health, impair
         natural coastal processes, and lead to adverse impacts on neighbouring areas
    -    Avoid risks to camp ground infrastructure by relocating these out of the high-risk area by
         mid-century
    -    Avoid intensification of further development in high-risk beach erosion areas in order to
         mitigate the risks to people, property and the environment.




16 This public tourism asset is referring to the Noosa North Shore Campground.
17 The infrastructure of concern is the use of the beach as the Esplanade and the primary access method for

the Teewah township, thus representing an accessibility risk for the community.
Noosa Council – Coastal Hazards Adaptation Plan 2020 - 2030                                                 Page 48