Annex 10 - Code 8 - Coastal Development & Tidal Works

  Performance outcomes                                             Acceptable outcomes                    Response
                                                                                                          is unlikely that the works would result in increased
                                                                                                          erosion to adjacent foreshores. As the reef patches
                                                                                                          would be expected to dissipate wave energy / reduce
                                                                                                          vessel wake, it would be expected to reduce erosive
                                                                                                          forces and promote the health of the adjacent
                                                                                                          mangroves.

                                                                                                          Noosa Sound (East and West) is characterised by
                                                                                                          very low tidal and flood velocities with correspondingly
                                                                                                          low sediment transport rates and the foreshore is
                                                                                                          dominated by mangroves. As such, there is little
                                                                                                          likelihood of increased risk of erosion to adjacent
                                                                                                          foreshores as a result of the works. The severity of
                                                                                                          erosion in the lee of the reef patches may be reduced
                                                                                                          as a result of dissipating wave energy / reduced
                                                                                                          vessel wake. The layout has been developed to
                                                                                                          avoid focussing flows close to shore.

  PO6 In areas where a coastal building line is present,           No acceptable outcome is prescribed.   Not applicable
  building work is located landward of the coastal building line
                                                                                                          The works are not building work.
  unless coastal protection work has been constructed to
  protect the development.
  Artificial waterways
  PO7 Development of artificial waterways, canals and dry-         No acceptable outcome is prescribed.   Not applicable
  land marinas minimises impacts on coastal resources by:
                                                                                                          The works are limited to the Noosa River natural river
      1. maintaining the tidal prism volume of the natural                                                system and do not relate to artificial waterways,
           waterway to which it is connected                                                              canals or dry land marinas.
      2. demonstrating a whole-of-life strategy for the
           disposal of dredged material.
  Coastal protection work
  PO8 Works for beach nourishment minimise adverse                 No acceptable outcome is prescribed.   Not applicable
  impacts on coastal processes and avoid any increase in the
                                                                                                          The works do not include beach nourishment.
  severity of erosion on adjacent land by:
      1. sourcing sand from an area that does not
            adversely impact on the active beach system

State Development Assessment Provisions – version 2.6
State code 8: Coastal development and tidal works                                                                                        Page 8 of 20