H - Revised Integrated Water Management Plan by Cardno (inc MUSIC file) (13.09.19)

                                                                                                      Integrated Water Management Plan
                                                                                              Noosa Marketplace : 2-20 HOFMANN DRIVE



Table 7-4       Flooding Impacts (m)
                                                        Flooding Impacts (m)
    Location            39% AEP            20% AEP             10% AEP              5% AEP                2% AEP         1% AEP
        P1                -0.08                0.01               0.06                0.07                 0.05            0.06
        P2                 0.00                0.01               0.19                0.22                 0.16            0.19
        P3                 0.00                0.00               0.00                0.00                 0.00            0.00
        P4                 0.00                0.00               0.14                0.19                 0.16            0.20
        P5                -0.03               -0.02               -0.04               -0.04                -0.04          -0.04
        P6                -0.03               -0.03               -0.03               -0.03                -0.03          -0.03
        P7                -0.03               -0.03               -0.02               -0.02                -0.01          -0.03
        P8                 0.01               -0.04               -0.04               0.00                 -0.02           0.00
        P9                 0.00                0.00               -0.07               -0.12                -0.12          -0.15
       P10                 0.03               -0.03               -0.02               0.00                 -0.01           0.00
       P11                 0.03               -0.01               -0.02               0.00                 0.00           -0.01
       P12                 0.04                0.03               -0.03               -0.03                -0.03          -0.04

*N/A meaning that the point of interest is out of the flood waters or located on a development building



Flood impact mapping for all events modelled is shown in Appendix C, with all results indicating a reduction in
peak flood levels along Hofmann Drive. Of particular interest is P9 with decreases of approximately 150 mm
for the 1% AEP event. At P9 depths decrease from 150 mm (Existing case) to 0 mm in the post development
case (Table 7-4). Some of the events modelled show minor impacts at off site locations. However all of these
impacts are contained within road and/or drainage reserves and therefore deemed to be not significant.




V190428 | 10 September 2019 | Commercial in Confidence                                                                             33