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

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



7.3          Modelled Events
The 39, 20, 10, 5, 2 and 1% AEP events were modelled to assess for significant adverse impacts on
surrounding properties as a result of the proposed development. An initial existing conditions scenario (E02)
was run to establish the current flood levels. A number of developed scenarios were run to determine the
optimum developed levels. Scenario D06 was used to simulate the changes resulting from the proposed
development.

7.4          Results
Results from the hydraulic modelling are presented in the following sections. The flood levels were reviewed
for both the existing and developed scenarios. Results at a number of key locations have been tabulated.
These locations were mainly on the boundary of the subject site and on roadways as shown in Figure 7-1.




Figure 7-1     Locations of Interest

7.4.2        Pre- Development Scenario
Initial modelling of the existing scenario (pre-development) shows that, in all AEP events modelled, Hofmann
Drive, as well as Eenie Creek Road, experience inundation from flood waters. In the 2% AEP event, Hofmann

V190428 | 10 September 2019 | Commercial in Confidence                                                       24