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River Torrens to Darlington (T2D) Tunnel Project

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

Source: Autonocion.com

Project
Under Construction

The River Torrens to Darlington (T2D) project is the largest infrastructure project South Australia has attempted, involving the construction of 6.5 miles (10.5 kilometers) of road tunnels under Adelaide. It includes the use of five tunnel boring machines (TBMs), three large ones for the main tunnels and two smaller ones for cross passages. The project aims to complete the final 10.5 kilometers of

Status
Under Construction
Sector
Tunnel
Location
Adelaide, South Australia, Australia
Updated
22 Jul 2026
Source
Autonocion.com

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

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 is the largest infrastructure project South Australia has attempted, involving the construction of 6.5 miles (10.5 kilometers) of road tunnels under Adelaide. It includes the use of five tunnel boring machines (TBMs), three large ones for the main tunnels and two smaller ones for cross passages. The project aims to complete the final 10.5 kilometers of the North-South Corridor, providing a non-stop motorway through Adelaide, reducing traffic lights and travel time.

Original sector

Transportation

Budget

Location

Country

Australia

State

South Australia

City

Adelaide

Source

Source

Autonocion.com

URL

More Details

Record type

Project

Sector

Tunnel

Article published date

2026-07-19

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