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River Torrens to Darlington (T2D) Project

Sector: Tunnel • Location: Adelaide, South Australia, Australia

Source: Roads & Infrastructure Magazine

Project
Under Construction

The River Torrens to Darlington (T2D) Project in South Australia involves the construction of Northern and Southern Tunnels using three large-scale Tunnel Boring Machines (TBMs) operating concurrently. The third and final TBM cutterhead has been installed at the Central North Precinct in Adelaide. The third TBM will excavate 2.2 kilometres from Hilton to the Northern Precinct near Brickworks Marke

Status
Under Construction
Sector
Tunnel, Road
Location
Adelaide, South Australia, Australia
Updated
22 Jul 2026
Source
Roads & Infrastructure Magazine

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The project “River Torrens to Darlington (T2D) Project” is an infrastructure initiative in the Tunnel sector, located in Adelaide, South Australia, Australia. Taiyo aggregates data on it from Roads & Infrastructure Magazine.

Participants

Not available for this record.

Status

Original status

under construction

Taiyo status

Under Construction

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

The River Torrens to Darlington (T2D) Project in South Australia involves the construction of Northern and Southern Tunnels using three large-scale Tunnel Boring Machines (TBMs) operating concurrently. The third and final TBM cutterhead has been installed at the Central North Precinct in Adelaide. The third TBM will excavate 2.2 kilometres from Hilton to the Northern Precinct near Brickworks Marketplace in Torrensville and back. The project aims to deliver a non-stop South Road and is expected to be completed by 2031 or earlier.

Original sector

Roads and Infrastructure

Budget

Location

Country

Australia

State

South Australia

City

Adelaide

Source

Source

Roads & Infrastructure Magazine

URL

More Details

Record type

Project

Sector

Tunnel, Road

Article published date

2026-05-24

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