2018-05-14 GC Agenda Attachment 1 to Item 6 Lake MacDonald Dr Community Reference Group Investigations Report

11. Where to from here?
11.1    Catchment flood risk assessment.
A catchment wide flood risk assessment will be undertaken following the completion of the Six Mile
Creek flood model upgrade. The flood risk assessment will seek to evaluate the vulnerability of all
land parcels impacted by flooding in terms of frequency and consequence. The risk assessment
will be used identify and prioritise the risk to properties throughout the floodplain. Where
appropriate, responses to reduce the risks will be considered. Such responses may include flood
mitigation options, planning scheme provisions, disaster management strategies and community
awareness.


11.2    Develop a catchment wide flood mitigation strategy.
Flood mitigation works identified as possible responses to reduce flood risk throughout the
catchment will assessed and prioritised based upon the overall flood risk, benefit to the community,
coast effectiveness and environmental impact.


11.3    Update flood emergency planning maps.
The Council’s flood emergency planning maps will be updated to include the results of the
upgraded Six Mile Creek flood model. The flood planning layers are available via Council’s online
interactive mapping portal. https://noosacouncil.wixsite.com/interactivemaps/home


11.4    Update planning overlays for new Planning Scheme
The catchment flood risk assessment and flood planning maps will be used to update the planning
overlays for the new Noosa Planning Scheme. Planning overlays act as mapping trigger which
may require applications within the overlay areas to respond to special provisions.


11.5    Continue to monitor rainfall and runoff records in catchment.
Rainfall and water levels heights will continue be monitored via the new flood warning stations
installed throughout the catchment. Over time the flood model calibration may be reviewed with
regards to other significant flood events recorded within the catchment.




Lake McDonald Flooding Community Reference Group Report                                     Page 40