Annex 11 - Code 11 - Marine Plants

  Performance outcomes                                  Acceptable outcomes                    Response
                                                                                               Processes still occur, but the works may result in
     1. maintains natural processes of erosion and
                                                                                               reduced erosion particularly along the shoreline.
        accretion unless there is an immediate and
        significant threat; and
                                                                                               1) The purpose of the works is not to provide
     2. does not result in increased risk of waterway
                                                                                                  erosion protection, but to restore rock oyster
        bed or bank scour or erosion or shoreline or
                                                                                                  ecosystems throughout the Noosa River. The
        foreshore erosion.
                                                                                                  design of the works extends only to Mean High
                                                                                                  Water Spring and the reef substrate will be
                                                                                                  overtopped by high tides, storm surge, flooding,
                                                                                                  wave action and vessel wake (at high tide). While
                                                                                                  module layouts 2 & 3 are anticipated to act as a
                                                                                                  segmented reef and provide some sheltering to
                                                                                                  the shoreline and result in reduced erosion, the
                                                                                                  works do not prevent erosion or accretion from
                                                                                                  occurring as a result of natural processes

                                                                                               2) The works are based on a modular design.
                                                                                                  Concept Layouts 2 & 3 (shore parallel modules)
                                                                                                  are to be adopted within Restoration Zone 1 Main
                                                                                                  Channel where higher tidal and flood flows are
                                                                                                  expected. This is to reduce the impact of the
                                                                                                  works on current flows and avoid the potential for
                                                                                                  concentration of flows to result in erosion of the
                                                                                                  shoreline or scour around the structures as well
                                                                                                  as encouraging flows through the structures
                                                                                                  which enhance suitability of the structure for
                                                                                                  habitat growth and reduces the potential for
                                                                                                  siltation.


  PO12 The development is designed, sited and           No acceptable outcome is prescribed.   Complies with PO12
  constructed to ensure its long-term use and
  operability will not result in ongoing adverse                                               Site selection has been carefully considered (see
  impacts or new adverse impacts or additional                                                 Section 2 Restoration Models, in the Project
                                                                                               Restoration Plan) and the design life is adequate to
  development including:
                                                                                               allow for sustained natural restoration once a suitable

State Development Assessment Provisions – version 2.6
State code 11: Removal, destruction or damage of marine plants                                                                Page 13 of 24