Town Planning Report and Appendices - Cooroibah

Performance outcomes                            Acceptable outcomes                                               Response     Comment
     the structure allow for fish passage       And
     of all fish attempting to move through
     the crossing at all flows up to the        AO24.3 The crossing and associated erosion protection             N/A          Refer to Response AO24.1.
     drownout of the structure.                 structures are installed at no steeper gradient than the
                                                waterway bed gradient.
                                                And
Editor’s note: For guidance on when a
waterway crossing is not considered to be       AO24.4 The crossing and associated erosion protection             N/A          Refer to Response AO24.1.
waterway barrier work see the Department of     structures are roughened throughout to approximately
Agriculture, Fisheries and Forestry 2014 fact
                                                simulate natural bed conditions.
sheet Maintaining Fish Passage in
Queensland: What is not a Waterway Barrier      And
Work?
                                                AO24.5 The lowest point of the crossing is installed at the       N/A          Refer to Response AO24.1.
                                                level of the lowest point of the natural stream bed (pre-
                                                construction), within the footprint of the proposed
                                                crossing.
                                                And
                                                AO24.6 There is a height difference from the lowest point         N/A          Refer to Response AO24.1.
                                                of the crossing to the edges of the low flow section of the
                                                crossing to channel water into the low flow section.
                                                And
                                                AO24.7 The level of the remainder of the crossing is no           N/A          Refer to Response AO24.1.
                                                higher than the lowest point of the natural stream bed
                                                outside of the low flow channel.
PO25 All waterway barriers are                  AO25.1 Hydraulic conditions (depth, velocities and                            The proposed works relate to the replacement of the
designed, constructed and maintained to         turbulence) from the downstream to the upstream limit of                       existing culvert. The works will not impact on the existing
provide adequate fish passage for the           the structure allow for fish passage of all fish attempting to                 low flow channel of the waterway and will therefore not
site and fish passage is provided for the       move through the barrier at all flows up to the drownout of                    result in a substantial or measurable change in the
life of the barrier.                            the structure.                                                                 hydrological regime of the waterway.
                                                And                                                                            The proposed works do not create a barrier to fish
                                                                                                                               movement.
                                                AO25.2 Aperture size of openings (for example, at                 N/A          No track racks to be deployed.
                                                screens or trash racks) ensures adequate fish passage.
                                                And


                                                AO25.3 Hydraulic conditions are such that adequate fish                       The proposed works relate to the replacement of the
                                                passage is provided.                                                           existing culvert. The works will not impact on the existing
                                                And                                                                            low flow channel of the waterway and will therefore not
                                                                                                                               result in a substantial or measurable change in the
                                                                                                                               hydrological regime of the waterway.


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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