Spiire’s Water Engineering team were engaged by Dahua Group Melbourne Investment (Dahua) to develop a preliminary precinct-wide Stormwater Management Strategy (SWMS) document regarding the capture, conveyance and treatment of stormwater flow for the proposed Aviators Field Precinct Structure Plan (PSP) area. Our Urban Design team were also engaged to provide the preliminary structure plan to support in engineering review.
The purpose of this SWMS was to provide an up-to-date holistic approach to the stormwater management for the Aviators Field PSP with the following benefits:
- Enable early engagement with stakeholders such as Melbourne Water
- Provide input to the PSP prepared by the Victorian Planning Authority (VPA)
- Provide information for other consultants undertaking future work for the PSP
- Inform Dahua and assist with decision making and future investments within the area
- Collaboration with neighbouring land owners
- Mitigate risks and assessing filling implications for the development through strategic thinking from a water management perspective.
The area is notoriously flat and has significant environmental considerations on the land (Cunningham Swamp) which presented Spiire with some up front challenges. Due to the flat nature of the site we needed to review potential floodway alignment options to reduce potential filling impact scenarios while ensuring that floodplain management objectives are met. Furthermore we developed a detailed 2-dimensional hydraulic flood model (Tuflow) to assess existing flooding in the vicinity of the subject site and quantify flood impacts due to the proposed urban design layout. Spiire also undertook a water quality modelling to determine Water Sensitive Urban Design (WSUD) land take possibilities. Whilst Cunningham Swamp presents challenges, it also offers the development fantastic connections to the environment as well as storing flood waters in large rainfall events.
The next steps for this project is to carryout broader stakeholder engagement on potential Integrated Water Management opportunities and continue working through the engineering challenges in more detail with the relevant stakeholders.
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