MCU21-0177.01 -Applicant's Response · MCU21/0117.01

           iii. Undertake an assessment for the 1%AEP event at year 2100 by increasing the 1%AEP rainfall
           intensities by 20%


Applicant’s Response

The amended stormwater detention design has been remodelled in the Watercom DRAINS detention
modelling program using the Initial Loss Continuing Loss (IL-CL) hydrological model. Based on ARR
DataHUB’s burst losses, the pervious area initial loss (mm) and the pervious area continuing loss (mm/hr)
values used in the model are 32 and 2.6, respectively.

Refer to the updated Site Based Stormwater Management Plan (23098 – SBSMP – Rev 4) showing the post-
development mitigated model. With the addition of the 20% increase in rainfall intensities to address
climate change considerations, the updated modelling has been completed to ensure all flows will be
mitigated in the tanks up to a Q100 storm event.


Information Required by Council

5.     We note that the fence building material has been amended in response to the Further ssues dated
       11 March however the design still results in approximately 25 metres of exposed wall when viewed from
       the street which conflicts with PO17 and AO17.1 to AO17.4 of the Medium Density Residential zone code.
       Provide an amended landscape design with accommodates a degree of landscaping to screen the
       exposed 25 metre side boundary fence as indicated below.


Applicant’s Response

New plans, renders and landscaping has been proposed along the fence line as requested which now screens
the 25m boundary fence.

Please refer to Attachment 2 – Amended Plans + Attachment 3 Landscaping – prepared by Blackburne
Jackson.




                                                                   PO Box 1818        07 5474 3873
                                                                   Noosa Heads        [email protected]
                                                                   QLD 4567           rgstrategic.com.au