Town Planning Report and Appendices - Cooroibah

Performance outcomes                        Acceptable outcomes                                              Response     Comment
                                            And
                                            AO23.9 In-stream scour protection structures are                             Scour protection will be utilised from the reuse of the natural
                                            roughened throughout to approximately simulate natural                        bed.
                                            bed conditions.
                                            And
                                            AO23.10 Culvert alignment to the stream flow minimises                       The proposed culvert alignment is to match that of the
                                            water turbulence.                                                             existing culvert.
                                            And
                                            AO23.11 There is sufficient light at the entrance to and                     There will be sufficient light at the entrance to and through
                                            through the culvert so that fish are not discouraged by a                     the culvert.
                                            sudden descent into darkness.
                                            And
                                            AO23.12 The depth of cover above the culvert is as low                       The depth of cover above the culvert will be designed to suit
                                            as structurally possible, except where culverts have an                       anticipated construction traffic.
                                            average recurrence interval (ARI) greater than 50 years.
                                            And
                                            AO23.13 For culvert crossings designed with a flood              N/A          Flood immunity is not applicable.
                                            immunity >ARI 50, fish passage is provided up to culvert
                                            capacity.
                                            And
                                            AO23.14 Adequate design (for example, culvert aperture)                      Adequate design and maintenance measures will be put in
                                            and maintenance measures are in place for the life of the                     place to keep the crossing clear of blockages.
                                            crossing to keep crossings clear of blockages through a
                                            regular inspection program in order to retain fish passage
                                            through the crossing.
                                            And
                                            AO23.15 Crossings within the bed and banks do not                N/A          Crossings within bed and banks are not proposed.
                                            incorporate culverts.
PO24 Waterway crossings other than          AO24.1 The crossing is built at or below bed level so that       N/A          A waterway crossing is not proposed as part of this
bridges or culverts provide adequate fish   the surface of the crossing is no higher than the stream                      application.
passage for the site and:                   bed at the site.
(1) fish passage is provided for the life   And
     of the crossing
                                            AO24.2 For the life of the crossing, relative levels of the      N/A          Refer to Response AO24.1.
(2) hydraulic conditions (depth,            crossing, any bed erosion or scour protection and the
     velocities and turbulence) from the    stream bed are kept so that there are no drops in
     downstream to the upstream limit of    elevation at their respective joins.


State development assessment provisions                                     Module 5 — Fisheries resources          5.2 Constructing or raising waterway barrier works in fish habitats state code
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