Operational Works Report_RosesRd Access 29 April2025

                                                                                                         Callaghan & Toth


Table 8:               Response to Table 9.4.8.3 – Hydrology and Waterway Stability

Performance Outcomes                                     Acceptable Outcomes               RESPONSES - Hydrology
Hydrology and waterway stability AO10                                   Complies with PO10
PO10                                  The development is designed to:
Development prevents increased         1. limit the peak 1              The driveway and culvert crossing
bed and bank erosion and                   year ARI event discharge     do not change existing flow rates,
sedimentation in receiving                 within the                   peak flor run-off and flow duration.
waterways by avoiding changes in           receiving waterway to the
flow rate, peak flow run-off and flow      pre-development peak 1       The culvert design includes scour
duration.                                  year discharge;              protection works and stabilisation
                                       2. maximise pervious areas by of table drains at the crossing.
                                           using pervious alternatives
                                           for otherwise impervious
                                           areas wherever possible;
                                       3. provide for capture and
                                           reuse of stormwater for non-
                                           potable purposes for
                                           gardening, toilet flushing,
                                           laundry and hot water supply
                                           uses;
                                       4. incorporate appropriate
                                           detention features; and
                                       5. incorporate natural channel
                                           design principles

                                                         Editor’s note: The Sustainable
                                                         Building Design Code includes
                                                         requirements for stormwater
                                                         capture and reuse.
PO11                                   AO11.1                             N/A
Water sensitive urban design           The design and construction of a
principles are applied to achieve      natural channel or natural channel
multifunctional design of waterways, rehabilitation works are in
wetlands and drainage lines that       accordance with the Natural
provide for:                           Channel Design Guidelines
 1. stormwater conveyance that         (Brisbane City Council) having
      uses natural channel design;     regard to local topography,
 2. protection of landscape            geology and geomorphology.
      features and ecological
      important areas including        AO11.2
      terrestrial and aquatic habitat; Landscape features, plant
 3. aesthetic and passive              species and habitat types used in
      recreation values;               stormwater conveyance channels
 4. flood management and               are complementary to the local
      conveyance of external           context and natural waterways.
      catchment stormwater through
      the development;                 AO11.3
 5. landscaping that                   Bank and bed stability and
      incorporates local native        planting densities result in a
      species; and                     stable channel over the long term
 6. bed and bank stability.            and minimal potential for pest
                                       plant species.

                                                         AO11.4
                                                         Water Sensitive Design measures




Operational Works Application – Supporting Information                                                  April 2025
36 Roses Road, Federal                                                                                          15