2016-07-18 General Committee Meeting - Item 3 - Attachment 1 - Flood Management Plan

7.3.3     Waterway Crossing Survey                             7.4 Key initiatives – Flood records and




                         T
                                                                   survey




                       F
Waterway crossing survey provides details of structures




                     A
such as bridges and culverts that cross waterways. The         The implementation plan will include initiatives that aim




                  DR
crossing survey will confirm the available waterway area       to –
beneath a structure and other critical dimensions such as
the thickness of the deck of the structure and the elevation   •   Collect peak flood level records along Kin Kin Creek
of the road surface above which inundation of the crossing         for a variety of flood events to improve flood model
will occur. Accurate waterway crossing survey is important         calibration in this location.
for determining the influence a crossing may have on local     •   Install MHG gauges along Kin Kin Creek adjacent to
flood levels and for planning for disaster management              Dr Pages Road and along Cooroora Creek and Cooroy
responses during flood events.                                     Creek.

Structure survey for Noosa River was undertaken by             •   Review existing radio telemetry flood gauge network
Aurecon in 2011 on behalf of Sunshine Coast Council.               and prioritise potential locations for additional gauges.
The survey includes a collection of 30 annotated sketches      •   Complete additional bathymetric survey of the Noosa
of structure dimensions and relevant flood related                 River to supplement existing survey of the River’s bed
infrastructure elevations. Selections of other structure           profile to help monitor and understand changes over
details are available for some estates and other significant       time and potential impacts.
crossings throughout the catchments.
                                                               •   Develop a guideline for collecting and storing flood
                                                                   related field data

                                                               •   Establish a regular maintenance program and
                                                                   procedures for maintaining the Council’s Maximum
                                                                   Height Gauges (MHGs).

                                                                                          •   
                                                                                              C onfirm    triggers and
                                                                                              procedures for reading
                                                                                              and maintaining Council’s
                                                                                              network of Maximum Height
                                                                                              Gauges.

                                                                                          •   Incorporate all available
                                                                                               historical flood level data
                                                                                               into an accessible GIS
                                                                                               environment.




                                                                                   Noosa Council | Flood Management Plan | Page 28