6.5.22 - Flooding Report 5 may

Glenridge Road
Flood Hazard Overlay Code Response
Performance Outcomes                                            Acceptable Outcomes                Response
Floodplain Protection
P01                                                             A01                                Development layout has ensured building envelopes
 Development is undertaken in a manner that                     Not acceptable outcome provided.   are located outside of the 1% (2100) AEP flood plain
 ensures:-                                                                                         with minimal change to the natural landform. An
 (a) natural hydrological systems are protected;                                                   internal road crossing proposed across waterway that
 (b) natural landforms and drainage lines are                                                      traverses the site has been design to minimise impact
        maintained to protect the hydraulic performance                                            to flow regimes.
        of waterways; and                                                                          Lot 1 inundation is associated with overland flow /
 (c) development integrates with the natural                                                       sheet flow from a small catchment to the north and is
        landform of the floodplain         rather       than                                       not influenced from the flood plain of the main
        modifying the landform to suit the development.                                            waterways through the site.
P02                                                             A02                                Development layout has ensured building envelopes
 In a flood and inundation area, as identified on a Flood       Not acceptable outcome provided.   are located outside of the 1% (2100) AEP with minimal
 Hazard Overlay Map, or in areas otherwise                                                         change to the natural landform. An internal road
 determined as being subject to the defined flood event                                            crossing proposed across waterway that traverses the
 (DFE) or defined storm tide event (DSTE):-                                                        site.
 (a) any development involving physical alteration to                                              Lot 1 inundation is associated with overland flow /
        land does not occur; or                                                                    sheet flow from a small catchment to the north and is
 (b) urban and rural residential development, and                                                  not influenced from the flood plain of the main
        other development involving the erection of a                                              waterways through the site
        building or structure or significant earthworks
        satisfies at least one of the following criteria:-
        (i)   the development is on land that is already
              committed       to     urban       or     rural
              residential development by an approval
              granted prior to the commencement of the
              planning scheme;
        (ii)  the development is on land identified in a
              structure plan or a local plan as an area
              intended for urban development;
        (ii)  the development is redevelopment or infill
              development within an existing developed
              area;
        (iv) an overriding community need in the public
              interest has been demonstrated that
              warrants approval of the development
              despite its occurrence       within an area
              subject to flooding;
              or