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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 completion is expected in late 2021, weather permitting.

Artists impression of the upgrade

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 continue to be required. In addition night works will also take place on Nottage Terrace, with further details provided below.

Works at the intersection

Night works are taking place on Main North Road (west of the intersection) and Nottage Terrace (east of the intersection). This stage of night works, which will now continue throughout July 2021, and August 2021, weather permitting, and includes:

  • Installation of new underground stormwater infrastructure, road lighting and signalling.
  • Pavement construction to widen the road and create new footpaths.

Hours of work are between 7pm and 7am Sunday to Friday. No works are being undertaken on Saturday nights. Some noise disturbance can be expected at times while these important works take place, however the work is

Property access is being maintained throughout the works.

Works on Nottage Terrace

Night works on Nottage Terrace, between the intersection and just east of Victoria Avenue, are scheduled to commence on Monday, 12 July 2021, and will continue until the end of August 2021, weather permitting.

Night works at this location will include:

  • Installation of road lighting.
  • Installation of stormwater and pavement infrastructure.

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

As part of these works, kerbside parking restrictions will be in place between 7pm and 7am each night within the work area commencing 12 July 2021, for approximately two weeks, weather permitting.

For further information download a copy of the latest works notification

Project Updates

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

Wednesday 07 August 2019 - Infrastructure agreement to bust congestion across Adelaide

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: