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Main North Road and Nottage Terrace Intersection Upgrade

About the project

The Australian and South Australian Governments are jointly funding the $19 million upgrade of the Main North Road and Nottage Terrace intersection. The upgrade is expected to support approximately 15 full-time equivalent jobs per year, over the life of the project.

The Australian Government’s commitment is part of the Commonwealth Urban Congestion Fund. The South Australian Government’s commitment was announced as part of the last State Budget, to bust congestion by upgrading a number of metropolitan intersections. The South Australian Government’s Keeping Metro Traffic Moving Report identifies this intersection as priority location for treatments that address road congestion and keep traffic flowing.

The right turn from Main North Road onto Nottage Terrace is a key movement for vehicles travelling from the south and CBD to the north-eastern suburbs.

The existing single right turn lane causes problems due to the inadequate capacity, resulting in long delays for peak traffic including disruptions to vehicles heading north on Main North Road through the intersection.

There is a need for additional capacity on all approaches to the intersection and to provide additional right turn capacity from Main North Road onto Nottage Terrace.

On average more than 67,000 vehicles travel through the intersection each day.

There have been 31 reported crashes at the intersection in the past five years, consisting of 12 minor injury crashes. Approximately 65% of all crashes were rear end crashes.

The Main North Road and Nottage Terrace Intersection Upgrade scope includes:

  • widening of Main North Road (west side), with the installation of dual right turn lanes onto Nottage Terrace travelling eastbound, two through lanes on Main North Road travelling northbound, and the addition of a priority bus lane through the intersection travelling northbound;
  • widening of Main North Road (east side) to accommodate the left turn lane onto Nottage Terrace travelling eastbound and the extension of the bus priority lane at the intersection travelling southbound;
  • widening of Nottage Terrace (south side) to accommodate the extension of the right turn lanes travelling northbound from Nottage Terrace onto Main North Road;
  • changes to access on Wilson Street, College Avenue and Victoria Avenue to accommodate the proposed treatments;
  • upgraded pedestrian crossings within the intersection, including new pedestrian crossing lights and ramps;
  • extension of the existing northbound bicycle lane on Main North Road through the intersection;
  • pavement construction and surfacing; and
  • new and upgraded traffic signals, road lighting, line marking, and drainage.

Service relocation and early investigation works to facilitate the upgrade are now complete and major works on the intersection are underway. Project expected to be open to traffic in late 2021, weather permitting.

Please note, this is an artist's impression for illustrative purposes only and not a final design. For further information download a copy of the current plan.

Community Engagement

The Department for Infrastructure and Transport sought feedback from the community regarding the proposed concept design.

All feedback received from the community was reviewed and considered by the project team and as a result the concept design has been updated to include:

  • Left turn access from Wilson Street onto Main North Road retained.
  • Right turn access from Main North Road onto College Avenue retained.
  • Right turn access from Victoria Avenue onto Nottage Terrace retained.
  • Eight car parks on the north side of Nottage Terrace between the intersection and Corban Road retained.

For further information download a copy of the updated concept map.

DIT COVID-19 Response

The Department will continue to tailor community engagement opportunities in line with the latest COVID-19 advice from health authorities.

Face-to-face engagement opportunities may be restricted and we will continue to be guided by the advice of health authorities, with the health and safety of our stakeholders always our highest priority.

Engagement with community and industry is crucial and we will facilitate information sessions as much as possible to enable face to face engagement.  It is important to assist in managing these events that you register as requested to enable physical distancing as much as possible.

What’s next?

Major works 

Major works commenced in May 2021. Works will be undertaken during the day Monday to Saturday, between 7am and 6pm, with night works also required, to minimise impacts and ensure the works can be completed safely and efficiently. Advance notice of night works will be provided.

The intersection will remain open during these works. Speed restrictions will apply and lane restrictions will be in place, when required, to maintain the safety of road users and workers.

Road users are asked to use extra caution when workers are on site, follow the directions of traffic controllers and observe traffic signage and speed restrictions when travelling through the area.

Access for properties will be maintained throughout the works.

Night works 

In order to minimise the impact to road users and to ensure the works can be completed safely and efficiently, night works will continue on Main North Road and Nottage Terrace throughout September 2021, and October 2021, weather permitting.

Night works at this location will include:

  • installation of new LED street lighting along Main North Road and Nottage Terrace;
  • installation of new traffic signalling at the intersection;
  • construction of a new centre median and traffic island on Main North Road;
  • construction of the new dual right turn lanes from Main North Road into Nottage Terrace;
  • extension of left and right turn lanes from Nottage Terrace into Main North Road; and
  • placement of asphalt and line marking.

Hours of work are between 7pm and 7am Sunday to Friday. No works will be undertaken on Saturday nights.

Traffic switch from early September 2021

From early September 2021, northbound traffic on Main North Road will be reconfigured to allow a work zone to be created in the middle of the Main North Road and Nottage Terrace intersection. Current traffic arrangements for eastbound traffic travelling on Nottage Terrace and southbound traffic travelling into Main North Road will be maintained.

In addition, the new extension of the left turn lane and priority bus lane on Main North Road heading southbound with be opened to traffic.

For further information download a copy of the latest works notification.

Project Updates

Night works and project update (traffic switch) - September 2021

Night  works -  July and August 2021

Night  works - June 2021

Construction  update  -  May 2021

Rescheduled community information session invitation - December 2020

Service relocation night works - November and December 2020

Project update and community information session invite - November 2020

Service relocation works - September 2020

Early service relocation works - September 2020

Small Business Fact Sheet - August 2020

Night works for site investigations - August 2020

Project update and opportunity to provide feedback - April 2020

Latest concept plan - April 2020

Project update and planning study - December 2019

Media Releases

Monday 17 May 2021 -  South Australian road projects in the fast lane

Thursday 13 May 2021 - Reduced travel time and improved safety at notorious Main North Road intersection

Sunday 11 October 2020 - Building what matters for South Australia

Monday 17 June 2019 - Building grade separations to bust congestion and cut travel times

Saturday 1 June 2019 - $51 million to bust congestion in northern suburbs

Further information

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

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