The work of a Hunter manufacturer is set to be on show at Sydney's busiest railway station for decades to come.
A unique roof being installed over Central's northern concourse, which will house the future Metro City and Southwest lines, was made by Kurri Kurri-based manufacturer Alfabs.
The steel structure was built on site in Kurri Kurri earlier this year before recently being transported to Sydney.
"When you're getting off the train at Central, take a look up and be proud such a striking new feature at our state's most iconic station was proudly made in the Hunter," he said.
A 250-tonne crawler crane was used by the Alfabs team to piece the roof together. It then had to be dismantled into sections to be trucked to the city in the middle of the night.
"Alfabs are proud to be involved in another landmark project with Laing O'Rourke that is transforming the Sydney landscape," Alfabs CEO Matthew Torrance said.
"Working with Laing O'Rourke and its subcontractors in our assembly yard at Kurri Kurri to pre-build the structure allowed our client the peace of mind that it would be installed with minimum risk, delay or passenger disruption."
Workers have recently been installing the roof's steel girders, described as "hockey sticks", and cassette roof sections at Central.
"The 80-metre-long and 40-metre-wide roof extends from the northern end of Platform 8 to Platform 16, and will sit more than 16 metres above ground to enable natural light to filter into the station," Mr Constance said.
The Alfabs team also contributed to the construction of the Sydney Yard Access Bridge at Central, which is being used to truck construction materials for the new metro over the railway lines.