The project involved civil and building design for UV building and water tanks, sludge thickener, dewatering building, various minor structures, road works and retaining walls.

Stage 2 Amplification, IDAL Tanks and Equalisation Basin

   A large sewage tank was constructed in Western Sydney. The project was won using a unique method for constructing the retaining walls that involved post tensioning the walls to reduce cracking and using the good quality sandstone foundation which enabled the builder to save significant costs, due to the complexity of the model a full Strand7 finite element model of both the tank and the foundation was undertaken.

   Project involves construction of four number IDAL tanks, 24 x 48 metres x 5.85 metres high and an equalisation basin 27 x 49 metres, with a wall height ranging from 4.40 to 6.9 metres. The walls of the tanks have been designed to be socketted into the underlying rock and act as cantilevers. The project was secured on a ‘design-construct’ basis.

   The Leisurelink project incorporates a first stage relocation and subsequent construction of a Geelong Baseball Centre playing field. The second stage of the Leisurelink project is the construction of the Aquatic Centre on the corner of Colac Road (Princes Highway) and Pioneer Road in Waurn Ponds. The facility incorporates an Olympic grade pool, outdoor leisure water activities, and indoor fitness facilities. This project encompasses Water Sensitive Urban Design initiatives and integrated water cycle management approaches. These include capture, treatment and reuse of stormwater runoff, pool backwash water and other water applications.

   An extensive programme of civil engineering works has been carried out at the Royal Melbourne Hospital, including:

• an audit of existing stormwater systems, analysis of the existing system capacity and preparation of a stormwater management plan
• provision of new underground stormwater and sub-soil drainage to serve new buildings
• design of new pavements and alterations to existing pavements
• surface grading of exterior pavements and landscaping to direct stormwater to the underground system

Stages 1 and 2 Car Terminal

   This $7.0 million first stage development for Strang Stevedoring Australia Pty Ltd, comprises 7.0 hectares of regraded pavement, with access roads to the wharf structures. The wharf structures comprise berthing dolphins, mooring dolphins and mid-ship and stern access bridges for loading and unloading. The wharf is designed to berth vessels up to 30,000 tonnes and 200 metres in length. Bonacci Group was responsible for the structural, civil, electrical and hydraulic engineering for this project. The second stage involved reclamation of land fill of Stage 1, to create new car park storage for cars.

Vehicle Dynamics Area (VDA)

   The VDA project incorporates 2.3km of asphalted road surface and a 3.3 hectare asphalted dynamics test surface which were designed and constructed to extremely tight tolerances. Bonacci Group utilised the three dimensional visualisation capacity of 12D to produce a simulated drive through to allow the client to more clearly picture the shape of the test area project.

   A two stage $80 million redevelopment, including new Coles supermarket, with multi-level carparking and truck access across the front of the complex, along with additional retail followed by construction of a 6 metre high cantilever retaining wall, new Big W outlet, all with carparking above and a truck ‘ring’ road. The food court was revamped and new mall extension was created to connect north-west carpark.

  Bonacci Group undertook all civil and structural aspects, including detailing of old to new connections.

   Bonacci Group has provided civil and structural services to suit the two most recent major upgrades, including food court, specialty shops, along with Big W and Safeway and Harris Scarfe, followed by a new Kmart and mall upgrade, with minor food court and the linking of old and new centres with a new mall. Bonacci Group also designed external pavements and roads, a major sewer diversion and carried out stormwater drainage analysis and design.