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PROJECTS WITH A VALUE OF GREATER THAN $100 MILLION
Dig. Lift. Hold. Engage. PROJECT: City Rail Link Contract 1 Britomart CONTRACTOR: Joint Venture Downer NZ & Soletanche Bachy CLIENT: City Rail Link VALUE: $230m City Rail Link (CRL) is a heroic feat of civil engineering being executed entirely from within NZ. In 2016, CRL awarded Downer NZ Soletanche Bachy JV (DSBJV) the CRL Contract 1 (C1) for enabling works at Britomart Station.
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C1 includes an extension of the rail network from Britomart, westwards underneath the 100-year old Chief Post Office (CPO) and lower Queen Street in Auckland’s CBD. Construction of twin rail tunnels beneath the CPO Building on reclaimed marine mud land next to live rail in NZ’s largest rail station presented major challenges. Overcoming these challenges led to several NZ-first initiatives and a legacy
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of skills for the local construction industry. Key innovations included underpinning of the CPO building – a feat of delicate engineering not seen in this country before, involving lifting the 14,000t heritage-listed building onto new foundations, installation of a sophisticated real-time vibration monitoring system, and integration of a new station management system with a legacy PLC system – in a live station environment. The CPO reopened to the public as the main gateway to Britomart in April 2021, a critical milestone for C1 and the wider CRL project, enabling the progression of other large scale developments within the CBD.
CCNZ / HIREPOOL CONSTRUCTION EXCELLENCE AWARDS 2022
