Code Assessments · MCU21/0015

CODE ASSESSMENTS

Flood Hazard Overlay Code
Performance outcomes                                    Acceptable outcomes                                           Response
               modifying the landform to suit the
               development as far as practicable.
PO4                                                     AO4.1                                                    N/A
For reconfiguring a lot, development does not           Development provides an effective evacuation route that The proposal is not a proposal for subdivision
compromise the safety of people resulting from the      remains passable, with sufficient flood warning time, to
flood risk associated with events exceeding             enable people to progressively evacuate to safe areas
the DFE.                                                above the PMF in the face of advancing flood or waters
                                                        for events that exceed the DFE.

                                                        OR

                                                        AO4.2                                                         N/A
                                                        Development provides for an area of sufficient size and       The proposal is not a proposal for subdivision
                                                        dimensions on site above the PMF that allows for safe
                                                        congregation and refuge.

                                                        AO4.3                                                        N/A
                                                        Where the existing roads servicing a development             The proposal is not a proposal for subdivision
                                                        provide a specific flood immunity (as determined by the
                                                        Qld Transport Road and Drainage Design Manual,
                                                        Queensland Urban Drainage Manual and the Australian
                                                        Rainfall and Runoff Guide), all lots have access to the
                                                        flood free area identified in Table 8.2.6.5 that matches the
                                                        road immunity.

PO5                                                     AO5                                                           N/A
For reconfiguring a lot or operational works,           In the Flood Hazard Overlay, or in areas otherwise            The proposal is not a proposal for subdivision
development does not directly, indirectly or            determined to be subject to the DFE or DSTE,
cumulatively alter the flood characteristics external   development ensures:
to the development site for all flooding and
inundation events up to and including                             1.   there is no loss of on-site flood storage
the DFE or DSTE based on:                                              capacity;
                                                                  2.   all changes to level, depth, duration and
                                                                       velocity of floodwaters are contained within
          1.   current climate conditions; and                         the site for all flood events up to and


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