Wolli Creek and T8 Airport Line Power Supply Upgrade

Image of Wolli Creek Station platform showing a train pulling into the station

What are we doing at Wolli Creek and on the T8 Airport Line?

Upgrading the power supply will support the introduction of the new fleet of trains operating along the T8 Airport Line. It will also future-proof the connection to the Sydney Trains network, allowing more trains and services to be available to customers.

Upgrades to the power supply are along the T8 Airport Line tunnel from Central to Wolli Creek Junction.

The canopy on platforms 3 and 4 at Wolli Creek Station is also being extended to increase weather protection and encourage customers to use the full length of the platform, reducing crowding at busy times.

Wolli Creek substation upgrades

The scope of works for the Wolli Creek substation upgrades includes:

  • construction of a new substation at Wolli Creek Junction
  • decommissioning the Undercliffe Substation and Wolli Creek Sectioning Hut
  • upgrading an access way to the new substation and truck turning bay at the northern end of Lusty Street.

T8 Line infrastructure upgrades

The scope of works for the T8 Line infrastructure upgrades include:

  • installation and modification of new power supply cables throughout the T8 Line Airport tunnel from the Chalmers Street substation through to Green Square, Mascot and Wolli Creek stations.
  • installation of a new power supply cable between Chalmers Street Substation and the Rail Operations Centre at Green Square
  • 6km of upgraded overhead wiring in T8 Line Airport tunnel
  • signalling system upgrades in T8 Line Airport tunnel.

What’s happening - Wolli Creek Power Supply Project?

During May, we carried out the following activities:

  • Continued building the new substation including cabling, electrical, and structural installations
  • Delivery and installation of power transformers for the substation
  • Cable installations near Spark Lane
  • Overhead wiring, signalling and track installation inside the rail corridor
  • Drainage work.

In June, we will continue to build the new substation including cabling, electrical, and structural installations.

Are there activities planned outside of standard construction hours?

The standard construction hours for the Wolli Creek Power Supply Upgrade Project are:

  • 7am to 6pm, Monday to Friday; and
  • 8am to 1pm, Saturdays.

Some low-impact work to install new switchboards inside the substation will take place outside of these hours between 7am and 6pm on:

Saturday 4 June

Saturday 11 June

Saturday 25 June

This work is not expected to be noisy, however you may notice our workers as they will utilise the onsite facilities and staff parking inside the compound at 5A Lusty Street during this work.

We will seek to minimise impacts as much as possible.

Wolli Creek canopy extension - now complete

During October 2021 we completed the work on extending the platform canopy at Wolli Creek Station which will increase weather protection and encourage customers to use the full length of the platform, reducing crowding at busy times.

This work involved:

  • extending the canopy to cover almost the entire length of Platform 3 and 4
  • additional CCTV and lighting for improved safety and security
  • more customer seating along the platform
  • additional digital information boards and passenger announcement system to keep customers informed about departing train services in real time.

Keep in touch

We will continue to keep the community informed throughout construction with regular notifications being distributed to the community and frequent updates published here on the website.

Please contact projects@transport.nsw.gov.au if you would like to subscribe to the email distribution list for this project.

What are we doing at Wolli Creek and on the T8 Airport Line?

Upgrading the power supply will support the introduction of the new fleet of trains operating along the T8 Airport Line. It will also future-proof the connection to the Sydney Trains network, allowing more trains and services to be available to customers.

Upgrades to the power supply are along the T8 Airport Line tunnel from Central to Wolli Creek Junction.

The canopy on platforms 3 and 4 at Wolli Creek Station is also being extended to increase weather protection and encourage customers to use the full length of the platform, reducing crowding at busy times.

Wolli Creek substation upgrades

The scope of works for the Wolli Creek substation upgrades includes:

  • construction of a new substation at Wolli Creek Junction
  • decommissioning the Undercliffe Substation and Wolli Creek Sectioning Hut
  • upgrading an access way to the new substation and truck turning bay at the northern end of Lusty Street.

T8 Line infrastructure upgrades

The scope of works for the T8 Line infrastructure upgrades include:

  • installation and modification of new power supply cables throughout the T8 Line Airport tunnel from the Chalmers Street substation through to Green Square, Mascot and Wolli Creek stations.
  • installation of a new power supply cable between Chalmers Street Substation and the Rail Operations Centre at Green Square
  • 6km of upgraded overhead wiring in T8 Line Airport tunnel
  • signalling system upgrades in T8 Line Airport tunnel.

What’s happening - Wolli Creek Power Supply Project?

During May, we carried out the following activities:

  • Continued building the new substation including cabling, electrical, and structural installations
  • Delivery and installation of power transformers for the substation
  • Cable installations near Spark Lane
  • Overhead wiring, signalling and track installation inside the rail corridor
  • Drainage work.

In June, we will continue to build the new substation including cabling, electrical, and structural installations.

Are there activities planned outside of standard construction hours?

The standard construction hours for the Wolli Creek Power Supply Upgrade Project are:

  • 7am to 6pm, Monday to Friday; and
  • 8am to 1pm, Saturdays.

Some low-impact work to install new switchboards inside the substation will take place outside of these hours between 7am and 6pm on:

Saturday 4 June

Saturday 11 June

Saturday 25 June

This work is not expected to be noisy, however you may notice our workers as they will utilise the onsite facilities and staff parking inside the compound at 5A Lusty Street during this work.

We will seek to minimise impacts as much as possible.

Wolli Creek canopy extension - now complete

During October 2021 we completed the work on extending the platform canopy at Wolli Creek Station which will increase weather protection and encourage customers to use the full length of the platform, reducing crowding at busy times.

This work involved:

  • extending the canopy to cover almost the entire length of Platform 3 and 4
  • additional CCTV and lighting for improved safety and security
  • more customer seating along the platform
  • additional digital information boards and passenger announcement system to keep customers informed about departing train services in real time.

Keep in touch

We will continue to keep the community informed throughout construction with regular notifications being distributed to the community and frequent updates published here on the website.

Please contact projects@transport.nsw.gov.au if you would like to subscribe to the email distribution list for this project.

Page last updated: 31 Aug 2022, 02:43 PM