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Torrens Road to River Torrens
The lowered motorway opened to traffic on 29 September 2018.
The Torrens Road to River Torrens (T2T) Project delivered a 4km non-stop roadway incorporating 3km lowered motorway between Ashwin Parade, Torrensville, and Pym Street, Croydon Park. It helps our communities by reducing travel time for people and freight.
Project overview
The project included:
- a 4km non-stop section of roadway (incorporating the lowered road section) between Pym Street, Croydon Park, and Ashwin Parade, Torrensville
- a 3km section of lowered non-stop motorway from Pym Street, Croydon Park to Gawler Avenue, West Hindmarsh
- parallel surface (at-grade) roads along the length of the lowered motorway to connect most local roads and arterial roads to South Road
- an overpass of the Outer Harbor railway line
- intersection upgrades at Pym Street, Torrens Road, Hawker Street, Port Road and Grange Road
- improved cycling and pedestrian facilities
- landscaping and noise barriers, where required.
The lowered non-stop motorway provides three lanes in each direction, up to 8 metres below the existing surface of South Road. This design takes into consideration the future transport needs of Adelaide and allows for connection to other parts of the non-stop North-South Corridor when the adjoining sections of South Road are upgraded in the future.
Scope extension
On 12 December 2015, the South Australian and Australian Governments announced the extension of the existing Torrens Road to Torrens River Project to include the section of South Road between Pym Street and Torrens Road in Croydon Park.
The extension resulted in the grade separation of South Road and Torrens Road and extended the lowered motorway by approximately one kilometre. All works were completed within the approved $801 million budget and completed within the original timeframe.
Design
The design included:
- an extension of the lowered motorway beneath Torrens Road, returning to grade near Pym Street
- improved signalised intersection at Pym Street
- parallel surface roads each side of the lowered motorway to give access to the surrounding community and local businesses
- improved cycling and pedestrian facilities
- landscaping and noise barriers, where required.
Safety and travel efficiency has been significantly improved with the extension of the lowered motorway beneath the Torrens Road intersection.
To view the design download the Torrens Road and Pym Street scope extension map (PDF, 797.7 KB)
View the concept design for the Torrens Road to River Torrens Project.(PDF, 7.1 MB).
Upgrades to other arterial roads
We also upgraded arterial roads west of the city to ease congestion during the Torrens Road to River Torrens Project.
View the upgrades for:
Project funding
In 2017, the T2T Project identified project savings of $95 million, resulting in a revised project cost of $801 million. The project was able to deliver these savings due to a collaborative Alliance contract, and by driving a value for money approach during the design and construction phases of the project by working closely with utility service providers and promoting innovation.
The T2T Project was jointly funded by the Australian and South Australian Governments, both committing $383.5 million towards the project, for a total project cost of $767 million.