Article by ASSDA & photos by Stoddart

A growing population in Australia’s most populous city calls for innovative design, so when the New South Wales State Government commissioned construction of the Wynyard Walk, accredited fabricator Stoddart stepped up to the challenge. The Wynyard Walk forms one of several solutions to break congestion in the Sydney central business district, allowing pedestrians to move from the Wynyard transport hub to the new development at Barangaroo waterfront in six minutes, avoiding steep hills, busy intersections and inclement weather events.
With an estimated 75,000 commuters using the busy hub every day, traffic flow is expected to increase to 110,000 over the next seven years in what is traditionally Sydney’s third busiest station. The tunnel will become the main arterial connection between Barangaroo and the city’s transport network and provides vital infrastructure into the future.

The project

Alongside CPB Contractors, Stoddart incorporated over 1,600m2 of perforated and solid stainless steel sheeting fabricated into ceiling and fascia panelling installed in the Clarence Street entrance facade and the tunnel lining. The new Clarence Street entry point is a multi-level portal descending to Wynyard Station via escalators and elevators. Austral Wright Metals supplied the project with over 50 tonnes of 445M2 grade stainless steel sheet. A major consideration for the design team was to ensure aesthetic value for commuters and visitors alike.

The design

Inspired by nature and Sydney region geology, the design concept for Wynyard Station focused on flow, with all materials selected to create a sense of motion as part of a unified architectural expression. The intricate patterns were all designed and executed within Stoddart’s factory in Karawatha, Brisbane. The design work was completed wholly on CAD and Solidworks to ensure each panel fitted exactly into the patter and alongside adjacent panels. The Brisbane facility completed all aspects on the manufacture. 

The external facade from Clarence Street to Wynyard Station was completed using perforated metal panels on the new access area via escalators and elevators down to the station several levels below. The internal fi-tout, including the ceilings, walls and bulkheads, were all constructed from perforated stainless steel as well as solid stainless steel panels. The complicated ceiling pattern proved challenging, but not insurmountable, resulting in a beautiful floating effect beckoning commuters along. The project signalled the completion of Stage One of an AUS $160 million upgrade to Wynyard Station.

The outcome

The Kent Street level incorporates an extraordinary twenty-metre digital media screen which showcases flowing images of time, travel and places from all over Sydney throughout history, providing commuters with a far more entertaining commute than traditional toilet-block-tiled underground tunnels.

For tens of thousands of commuters who daily traverse the tunnel, Wynyard Walk is a time and energy saving alternative to the street level traffic roulette they once faced. The added bonus is the stunning, aesthetically pleasing surrounds, the shiny panels and beautiful architecture, all of which was made possible by the use of stainless steel.

About the ASSDA

This article was provided by the Australian Stainless Steel Development Association, a non-profit industry group that supports Australia’s stainless steel industry. For information visit

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