Flood report · MCU26/0104

             Developed Site
             Development plans formed the developed digital surface model which was input into 12d.
             The dwelling extent was input into the model as a raised blockage to the minimum habitable
             level of RL3.50m AHD.

             Due to the proposed filling across the site, compensatory earthworks have been proposed
             towards the rear of the dwelling to compensate for the lost flood storage capacity. The
             earthworks comprised of a minor batter from approximately RL2.80m to RL2.10m with a
             1.15% fall tying into the existing fill batters. This new cut pad has been modelled in 12d to
             compensate for the fill of the proposed dwelling.

             Results show that the development area would provide up to 4628.62m3 of flood storage
             capacity during the defined flood event (1% AEP event), an increase in flood storage capacity
             from the existing site conditions. As such, the proposed development works are considered
             to not cause an adverse impact to neighbouring properties or the surrounding area.
             Developed site contours are presented in Figure 2, Appendix C.




                                Figure 6 – 12d Developed Site Flood Storage Capacity




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1534 Louis Bazzo Drive, Cootharaba                                                                    FLOOD SMART
26-148                                                                                                ENGINEERING