The Amcor G3 project located in Gawler, South Australia increased the total area of the plant to over 70,000m2.  Amcor’s manufacturing facility featured the world’s most contemporary container glass technology. The production lines were designed to produce 750 ml premium-quality glass bottles in a variety of shapes and colours. In addition to these bottles; the Stage 3 production lines had the added capacity to produce 375ml beer bottles. 

The Stage 3 project scope included: 

  • Expansion of the existing batch plant 
  • A third furnace building with an additional 450 tpd capacity melting furnace. 
  • A third production building with two additional production lines. 
  • A third annealing and packaging line 
  • Expansion of the existing amenities building 
  • An expansion of the water treatment facilities.

Upon the completion of Stage 3, Amcor’s production capacity increased to approximately 600 million wine bottles per year. 

The Robert Bird Group provided consulting structural engineering services for the new buildings, furnace, silos and production lines. 

Project Value: 
$200 million  
Year Completed: 

Amcor Limited 
Robert Bird Group Services:  
Structural Engineering  
Construction Engineering 

Key technical challenges

  • The primary tower structure consists of a composite slab and beam structure. Due to the long beam spans and thin slab, extensive analysis for footfall vibration was required to ensure the structure achieved code requirements and client expectations.
  • Working with the existing structure and developing design solutions that strengthened rather than demolished.
  • Extensive co-ordination with the mechanical engineer to develop a strategy that minimised beam penetrations and beam notches.
  • Differential shortening analysis with consideration of mega truss, steel structure, concrete structure and existing structural elements

Environmental performance

  • 5 Star Greenstar
  • 5 Star NABERs Energy and 4 Star NABERs Water ratings.

Indoor Sports Centre

An Indoor Sports Centre with a seating capacity of up to 10,000, with 80% of the seats retractable or removable that caters for different events. The venue has been designed to meet the standard of major international tournaments including badminton, basketball, gymnastics, tennis and table tennis. The ancillary sports hall offers a seating capacity of up to 500. With the use of different arena overlay floor surfaces and removable spectator seating system, the venue can be configured for different sports activities, from elite competitions to community use. Together, the main arena and ancillary sports hall can provide the equivalent space of 12 standard basketball courts for community use when all spectator seats are removed.

Public Sports Ground

A Public Sports Ground with a seating capacity of 5,000, suitable for hosting school sports days, athletics meets, local football and rugby matches, as well as team and athlete training sessions. With the exception of major events, the Public Sports Ground will be open daily to the public for jogging and quali-walk free of charge.

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