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Grand Junction, Hampstead and Briens Road Intersection Upgrade

About the project

The Australian and South Australian Governments are jointly funding the $19 million upgrade of the Grand Junction, Hampstead and Briens Road Intersection.

Grand Junction Road and Hampstead Road is a key freight movement and the existing single right turn lane at the intersection causes problems due to the slow acceleration of heavy vehicles. There is a need for additional capacity on all approaches to the intersection to allow for this movement by duplicating the existing right turn lane.

On average more than 58,400 vehicles travel through the intersection each day.

There have been 89 crashes at the intersection in the past five years, including 35 casualty crashes. Approximately 49% of all crashes were rear end crashes.

The upgrade will improve the safety of the intersection and will reduce congestion for motorists.

Early works are expected to commence in the third quarter of 2020, with main works expected to begin in early 2021, weather permitting.

The current proposed treatments for the intersection include:

  • widening of Grand Junction Road (east side), with the extension of the right turn lane onto Briens Road travelling northbound, signalised left turn lane onto Hampstead Road travelling southbound, and three through lanes on Grand Junction Road;
  • widening of Grand Junction Road (west side), with the installation of dual right turn lanes onto Hampstead Road travelling southbound and three through lanes on Grand Junction Road;
  • widening of Briens Road to accommodate dual right turn lanes onto Grand Junction Road travelling westbound and signalised left turn lane onto Grand Junction Road travelling eastbound;
  • widening of Hampstead Road, to accommodate the proposed treatments;
  • upgraded pedestrian crossings within the intersection, including new pedestrian crossing lights and ramps;
  • dedicated bicycle lanes on all approaches;
  • pavement construction and surfacing; and
  • new and upgraded traffic signals, road lighting, line marking, and drainage.

Hampstead, Grand Junction Roads Intersection

Please note, this is an artist's impression for illustrative purposes only and not a final design. Click here to download the current plan.

DPTI COVID-19 Response

To help safeguard the DPTI project team and the community, we have implemented measures to manage the risks of, and our response to, contracting COVID-19.

These include but are not limited to, increased personal hygiene practices and limiting face-to-face contact.

The project team will provide construction updates and work notifications via social media, letterbox drops, emails and the Project website. We are also available to speak via telephone (1300 794 880).

We encourage the community to register for email updates.

There will be no planned community events or information sessions until further notice.

What’s next?

Community and stakeholder engagement

Community and stakeholder engagement is important for the successful delivery of this project. We are seeking your feedback on the proposed design of the intersection upgrade.

A concept plan for the upgrade has been prepared and we are inviting the community and stakeholders to provide feedback that will be reviewed and considered by the project team   to inform the detailed design.

To view the draft concept design please click here and to read the latest project notification please click here.

We encourage you to provide feedback via the online Registration, Feedback and Suggestions page, by emailing: or calling 1300 794 880. Feedback can be provided until COB Friday 24 April.

Early site investigation works

As part of the early design process, site investigation works to identify the location and depth of all utility services in the vicinity of the proposed upgrade will commence Monday, 30 March 2020, continuing throughout April.

These works will be undertaken during the day, Monday to Friday, between the hours of 9am and 4pm, weather permitting.

Access for emergency services vehicles, pedestrians and properties will be maintained at all times.

Pedestrians are reminded to keep clear of the work zones, however traffic management will be in place throughout these works to assist with pedestrian and cyclist movements.

Some noise disturbance can be expected at times while these works are completed, however the work will be managed to minimise disturbance to local residents and businesses as much as practically possible.

Please plan ahead, allow extra travel time and take extra care when workers are on site. Observe speed limits, lane restrictions and traffic controllers when travelling through the area.


Grand Junction, Hampstead and Briens Road Intersection Upgrade - March 2020 project update

Hampstead and Grand Junction Road Intersection Upgrade Notification - June 2019

Further information

If you have any further enquiries or would like to register your interest in the project to receive updates, please: