Grange Road, Holbrooks Road and East Avenue Intersection Upgrade

About the project

The Department for Infrastructure and Transport is upgrading the intersection of Grange Road, Holbrooks Road and East Avenue to relieve congestion and improve safety and connectivity for all road users at this location.

The $90 million project is part of the $850 million package of broader network upgrades, funded by the Australian and South Australian governments as part of the T2D Project.

Benefits

Less time waiting at traffic lights

Four new, safer pedestrian crossings

Improving safety for cyclist and public transport user

Removing staggered junction for faster travel

Concept design

The concept design has been updated following community feedback in late 2023.

Click here for more information and to view the latest concept design.

Project timing

Major construction is now underway, with the intersection expected to open to traffic in late 2025.

Latest News

Temporary Holbrooks Road detour

Works are progressing well at the intersection of Grange Road, Holbrooks Road and East Avenue.

To safely facilitate ongoing service relocation works, traffic on Holbrooks Road will be temporarily closed between Banks Avenue and Grange Road at night with detours in place.

Temporary speed and lane restrictions will also be in place on Grange Road at night to undertake further service relocation works.

Click here for more information and access the detour map

Traffic barriers installation

The next stage of works will include road widening activities, and also traffic barrier installations on the western side of East Avenue and Holbrooks Road.

To keep everyone safe installation of the traffic barriers will occur at night from Tuesday 10 June 2025 and take approximately four nights to complete.  The barriers will remain in place for approximately three months.

Click here for more information and access the pedestrian detour map

Community engagement

Engagement with the community will continue to be an important part of the project during the planning and construction period. We look forward to keeping you well informed about the status of the project and minimising impacts as much as possible.

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Further information

If you would like to register to receive project updates, have any questions or to provide feedback, please either:

• Subscribe for updates
• Email DIT.GHE@sa.gov.au
• Telephone 1300 794 880