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The new section of the North-South Motorway has now increased to 80km/h.

Project scope

The Australian and South Australian governments have jointly committed $354.3 million to construct the Regency Road to Pym Street (R2P) Project as part of their overall commitment to build a non-stop North-South Corridor.

The project comprises an at-grade motorway from the existing motorway infrastructure to the north (South Road Superway); an overpass of the motorway over Regency Road; and an at-grade motorway from Regency Road to Pym Street, transitioning to the lowered motorway infrastructure (Torrens Road to River Torrens Project). The design includes:

  • a 1.8 kilometre section of non-stop roadway, providing three lanes in each direction (at-grade);
  • two lanes in each direction on the South Road surface road, providing access to the surrounding community and local businesses;
  • an overpass over Regency Road (three lanes in each direction). Two lanes in each direction (at-grade) on the surface roads underneath;
  • left in and left out only access at Pym Street;
  • full access to and from the non-stop motorway at Regency Road;
  • intersection upgrade at Regency Road;
  • improved cycling and pedestrian facilities;
  • a grade separated pedestrian and cycle overpass over South Road in the vicinity of Pym Street; and
  • landscaping and noise barriers.

Please see downloads below to view the design.

Locality plan for the North-South Corridor - Regency Road to Pym Street Project



  • The Department of Infrastructure, Regional Development and Cities is working with every Australian State and Territory to build much-needed infrastructure across a number of individual funding programs.

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  • The Department works as part of the community to deliver effective planning policy, efficient transport, and valuable social and economic infrastructure.

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  • McConnell Dowell is the Creative Construction Company for customers who want to build better communities through safe, smart, efficient infrastructure.

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  • Mott MacDonald is an employee-owned management, engineering, and development consultancy with 16,000 staff in 150 countries.

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  • An independent firm of designers, planners, engineers, consultants and technical specialists across all aspects of today's built environment.

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