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SQARRP Alliance, Wide Bay and Darling Downs


PROJECT OVERVIEW

The Southern Queensland Accelerated Road Rehabilitation Project (SQARRP) replaced 31 timber bridges on strategic road networks across 600 kilometres in southern Queensland from Stanthorpe to North of Bundaberg.

The initiative to group together the bridge replacements as one project resulted in significant time and cost savings for Transport and Main Roads.

To secure supply during a period of high demand, key suppliers Humes (precast) and Wagstaff Piling integrated into the team as full alliance partners.

Recognising the alliance’s success, Transport and Main Roads awarded the team two additional bridges on the New South Wales / Queensland border.

SCOPE

CMC performed approximately 60 percent of the total value of the work under the alliance and provided the majority of the senior project management team.

HIGHLIGHTS & OUTCOMES

Delivered $18 million under budget, six months ahead of schedule and succeeded in meeting the targeted 28 bridges in 28 months milestone.

Successful management of 200 individual stakeholders spread across Southern Queensland.

Replaced cast in-situ kerbs with a PSC kerb units on all bridges, which reduced construction time of each bridge by one week per span and provided a total saving of $4 million.

Incorporated piling contractor as a full alliance partner which allowed CMC to optimise pile designs and deliver $1 million of savings.

Optimised bridge approaches and alignments to reduce property resumptions, earthwork volumes, and deliver $5.2 million of savings.

Mitigated risks associated with spoiling sodic soils by amending the specification to incorporate the sodic materials into the core zones of embankment fills, this delivered $500,000 in savings.

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