MCU14/0045 & OPW14/0268: Appendix D - Hazard Code

Appendix D: Natural Hazards Overlays Code - Flood Hazard Areas



PERFORMANCE CRITERIA                                     ACCEPTABLE SOLUTIONS                                     COMMENTS


                                                         S18.1 Community Uses and Infrastructure Uses             Not applicable.
O18 Community Uses and Infrastructure Uses are           are sited and constructed to ensure that floor levels
able to function effectively during and immediately      are not less than the AEP (or ARI) levels identified
after flood events.                                      below—
                                                         a) Emergency service facilities- 0.2% AEP (1:500
                                                         ARI);
                                                         b) Emergency shelter- 0.5% AEP (1:200 ARI);
                                                         c) Police station- 0.5% AEP (1:200 ARI);
                                                         d) Hospital- 0.2% AEP (1:500 ARI);
                                                         e) Electricity substation- 0.2% AEP (1:500 ARI);
                                                         f) Water treatment plant- 0.2% AEP (1:500 ARI);
                                                         g) Power station- 0.5% AEP (1:200 ARI);
                                                         h) Major electrical switch yard- 0.5% AEP (1:200
                                                         ARI); and
                                                         i) Store for valuable records or items of historic or
                                                         cultural significance- 0.5% AEP (1:200 ARI).

O19 All lots have sufficient area that is above the 1%   S19.1 The minimum area above flood level for each        A Council Flood Information Certificate has been
AEP (1:100 year ARI) flood level or where modelling      lot, is in accordance with Table 13.11;                  obtained which indicates that the defined flood level is
is not available, the highest recorded flood level, to   AND                                                      RL 2m AHD, based on the 1% AEP event. A minimum
safely and adequately accommodate their intended         S19.2 Where the existing roads servicing a               habitable floor level of RL 2.5m AHD has been adopted
use.                                                     development provide a specific flood immunity (as        based on the Flood Information Certificate. 100% of
                                                         determined by Chapter 6 of the Qld Transport Road        the site will be maintained above the 1% AEP flood
                                                         and Drainage Design Manual and the Australian            level.
O20 Development integrates with the natural              Rainfall and Runoff Guide), all lots                     The proposed development will not adversely impact
landform rather than modifying the landform to suit      have access to the flood free area identified in Table   the natural landform.
the development.45                                       13.11 that matches the road immunity;
                                                         AND
                                                         S20.1 Flood immunity for development areas is not
                                                         achieved by filling land below the 1% AEP (1:100
                                                         year ARI) flood level; or
                                                         S20.2 Where modelling is not available, flood
                                                         immunity for development areas is not achieved by
                                                         filling land below the highest recorded flood level.
                                                         No solution provided                                     The proposed development will not adversely impact on
O21 Filling or excavation only occurs where it does                                                               existing watercourses or water levels on adjacent

                                                                CadCon Surveying & Town Planning
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