Attachment 6 - Stormwater Management Plan and Engineering Response. · MCU23/0078

1. INTRODUCTION

      Bornhorst and Ward has been commissioned to investigate and report on the stormwater requirements pertaining to the
      proposed mixed-use development located at 28 Eenie Creek Road, Noosaville QLD 4566 (Lot 1, 3 and Lot 7 on SP322201).
      The proposal consists of constructing basement car parking, ground floor retail with civic open space, and entertainment,
      commercial and residential apartments on the second and third floors. Plans of the proposed development can be seen in
      Appendix A.


      This document reports on the existing and proposed stormwater infrastructure required as part of the proposed
      development as well as the stormwater quantity and quality management required for the site. The engineering
      requirements for this proposal shall be in accordance with Engineering Best Management Practices, Noosa Shire Council
      Planning Scheme, the Queensland Urban Drainage Manual (QUDM 2017) and the State Planning Policy 2017.


      This report outlines the preliminary design methodology and calculations in support of a Development Application and
      should be read in conjunction with other documents issued by the consultant team.


2. SITE CHARACTERISTICS

2.1   LOCATION AND EXISTING FEATURES

      The development site, located at 28 Eenie Creek Road has the following existing characteristics:

          −    The site is bounded by Walter Hay Drive to the east, the existing Noosa Civic Shopping Centre to the west, and
               future development lots to the north and south;

          −    The development site comprises of 2 separate lots currently made up of bushland separated by a private internal
               roadway (known as Main Street) contained within an access easement;

          −    The total area of the site is approximately 5.8 ha;

          −    Lot 3 is located on the western side of the development site and is bounded by the Noosa Civic Shopping Centre
               to the west, the private access roadway to the east, and vacant future development lots to the north and south.
               There is a natural drainage channel located along the western boundary of Lot 3 between the proposed
               development and the existing Noosa Civic Shopping Centre, contained within Covenant J;

          −    Lot 7 is located on the eastern side of the development site and is bound by Walter Hay Drive to the east, the
               private access roadway to the west, and vacant future development lots to the north and south;

          −    The proposed development within Lot 3 has an area of approximately 2.98 ha and the proposed development
               within Lot 7 has an area of approximately 0.587 ha, excluding the private internal roadway easement;

          −    The closest waterway is Eenie Creek which located approximately 500m to the south-west;

          −    The internal private access roadway is contained within an access easement in favour of Noosa Shire Council
               within Lot 3, with a separate Unity Water easement located within the access easement to service Unity Water
               sewer and water reticulation infrastructure; and

          −    A surface access easement in favour of Noosa Shire Council to facilitate pedestrian and active transport
               movements is located along the western side of the Lot 3.

      Refer to Figure 1 for locality details which notes Lot 3 and Lot 7 within the proposed development area.




                                                   www.bornhorstward.com.au                                             Page 1