Town Planning Report and Appendices - Cooroibah

Performance outcomes                           Acceptable outcomes                                                  Response     Comment
for the whole fish community taking into       works is well understood and catered for.
account species, size classes, life-stages     And
and swimming abilities.
                                               AO18.2 The fish way design, operation and capacity will              N/A          Refer to Response AO12.1.
                                               avoid or acceptably minimise any delays in fish
                                               movement.
PO19 Development does not increase             AO19.1 All pathways providing fish passage at a                      N/A          Refer to Response AO12.1.
the risk of mortality, disease or injury, or   proposed waterway barrier works are safe for fish to pass.
compromise the health and productivity         And
in fish.
                                               AO19.2 Fish passage will not adversely impact on the                 N/A          Refer to Response AO12.1.
                                               wellbeing of fish.
                                               And
                                               AO19.3 The designs of all components of waterway                     N/A          Refer to Response AO12.1.
                                               barriers, including but not limited to spillway, stilling basin,
                                               apron and dissipation structures, are developed and
                                               implemented with safe downstream fish passage as a key
                                               design consideration.
                                               Note: A stepped spillway (including sheet pile weirs) is not an
                                               acceptable solution as high mortalities and injuries to fish have
                                               been associated with such designs.
                                               And
                                               AO19.4 There is adequate minimum tailwater depth at the              N/A          Refer to Response AO12.1.
                                               toe of the spillway (for example, stilling basin) at
                                               commencement to spill (for example, 30 per cent of the
                                               head difference).
                                               And
                                               AO19.5 Intake and outlet works adjacent to the waterway              N/A          Refer to Response AO12.1.
                                               barrier are screened or otherwise designed and placed to
                                               prevent fish passing through or becoming trapped in these
                                               works.
                                               And
                                               AO19.6 Intake screen dimensions are such that small fish             N/A          Refer to Response AO12.1.
                                               are not drawn through the outlet works and velocities are
                                               low enough that fish are not impinged or entrained on the
                                               screens.
                                               And
                                               AO19.7 The fish way exit is located so as to avoid                   N/A          Refer to Response AO12.1.
                                               entrainment in any outlet work screens and avoid fish


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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