Excavation The contract for the excavation of the six stations and twin bored tunnels on the
Sydney Metro City and Southwest project was awarded to a joint venture between
John Holland,
CPB Contractors, and
Ghella in June 2017, for
A$2.81billion. Demolition of buildings to make way for Pitt Street station began in August 2017. Excavators were craned to the top of buildings to complete the demolition from the top down. By April 2018, all eight buildings at the station's northern entrance had been demolished, the tallest of which was fourteen storeys. The four buildings at the station's southern entrance were demolished soon after as well. After that, concrete retaining walls were built so that the entrance shafts could be excavated. An acoustic shed was built over the sites to limit the impact of construction noise on surrounding areas. By early 2019, the platform caverns were being excavated by
roadheader machines. In August 2019, the first
tunnel boring machine (TBM),
Nancy, broke through the southern cavern wall to reach Pitt Street station, and the following month, the second TBM,
Mum Shirl, reached the station. After undergoing maintenance, the TBMs continued tunnelling north towards Martin Place station. In November 2020, concrete lining and waterproofing the station was nearly complete, and by the end of 2020, excavation had been completed.
Station construction In September 2019, a consortium of
CPB Contractors,
Oxford Properties and
Grocon were awarded a $463million contract to construct the station and design and construct two buildings above the station. Under the deal, the consortium also had to pay $369million for the air rights above the station. CPB was responsible for the station's construction. By the end of 2021, Pitt Street station's platforms, which were made out of 681 precast concrete sections, were built, and the concrete slabs for the tracks had been poured. By November 2022, the platform screen doors were in place and the southern entrance building's structure was complete. Five out of the southern entrance's six escalators were also in place, with the final escalator planned to be installed by the end of 2022. Over the following months, the eight escalators at the northern entrance were planned to be installed. The station opened on 19 August 2024.
Name Gadigal station was originally known as Pitt Street station. In August 2021, the
Metropolitan Local Aboriginal Land Council proposed naming the station after the
Gadigal people, the local
Indigenous Australians.
Transport for NSW and the
minister for transport,
Andrew Constance, supported the idea and sent it to the
Geographical Names Board (GNB) for approval. During consultation, the GNB received 120 submissions, most of which were in support of the name
Gadigal. However, in February 2022, two months after
David Elliott was sworn in as the new transport minister, he intervened to propose the station be named after Indigenous army officer
Reginald Saunders. In October 2023 though, after the election of a
Labor government, the name Gadigal was finalised.
Over-station developments There will be an over-station development at the northern and southern entrance, constructed by
Oxford Properties and
CPB Contractors. The northern entrance will have a 39-storey office building with a retail plaza named
Parkline Place. The southern entrance will have a 39-storey building with 234
build to rent apartments named Indi Sydney. ==Services==