Annex 13 - Schedule 3 - Prescribed Tidal Works

Coastal Protection and Management Regulation 2017
Schedule 3. Code for Assessable Development that is prescribed tidal works
Part 3 Performance outcomes and acceptable outcomes

                                                                                                                              be trafficable by pedestrians as this would
                                                                                                                              negatively impact on the habtitat.
                                                                                                                          (g) The design considers that the works will be
                                                                                                                              underwater at times and subject to
                                                                                                                              hydrostatic pressures, but given the nature of
                                                                                                                              the works this is not critical to the design.
                                                                                                                          (h) The stability of individual rocks has been
                                                                                                                              determined based on internationally
                                                                                                                              recognised world’s best practice guidelines.
                                                                                                                              Rock structure are inherently flexible and able
                                                                                                                              to accommodate some movement or
                                                                                                                              displacement of individual boulders, which
                                                                                                                              may occur during a design event. This is to
                                                                                                                              be addressed through maintenance if
                                                                                                                              required.

                                                                                                                      The oyster shell is not inherently stable in the design
                                                                                                                      site conditions, but shell stability has been optimised
                                                                                                                      by the use of whole shell, the mixing of shell with the
                                                                                                                      rocky substrate to secure it within the rocky matrix, the
                                                                                                                      placement of loose oyster cultch as a single layer by
                                                                                                                      hands into interstitial voids and the capping of the
                                                                                                                      volume of loose shell placed to 10kg/m3. Refer ICM
                                                                                                                      drawing NROR-2021-02 Notes 3 & 5 for placement
                                                                                                                      requirements. Where monitoring identifies displaced
                                                                                                                      shell that is more than 5m outside the Restoration Site,
                                                                                                                      it is to be removed in the event that it is resulting in
                                                                                                                      negative impacts. Refer ICM drawing NROR2021-00
                                                                                                                      Note 4.2 and Project Restoration Plan.

 12.2 Prescribed tidal works do not adversely      The design and construction of the prescribed tidal works is       Complies with Performance Outcome 12.2.
 affect the structural integrity of any existing   consistent with the following standards—
 revetment or seawall or another existing          (a) subject to paragraph (b), prescribed tidal works, including    The works allow for a minimum distance of at least
 structure.                                        any abutment, piling or other structure connected with the         30m from existing tidal works. As such, it is not
                                                   works—                                                             anticipated that the works will impact on any existing
                                                   (i) do not place an additional load on any existing revetment or   structure.
                                                   seawall or another existing structure; or



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