Torrens to Darlington (T2D) Project - South Tunnel Portal I January 2026

Описание: Southern Construction Precinct - January 2026

🚧 Major Milestones Achieved (Southern Precinct – Clovelly Park)

🏗️ 1. Site Establishment Completed

Full construction site established from Tonsley Boulevard to Norrie Avenue.
This includes fencing, access points, utilities, and staging areas.


🛠️ 2. TBM Delivery & Assembly Underway

First Tunnel Boring Machine (TBM) components delivered to the Southern Precinct.
Assembly has commenced on-site in preparation for tunnelling.

🚦 3. New Link Roads & Intersection Works

Two new link roads constructed to maintain local access during major works.
A new signalised intersection at Norrie Avenue and South Road is now operational.

🏢 4. New Site Office & Training Centre Opened

A major project hub has opened on the former Stratco site at South Road & Rothesay Avenue.

🧱 5. Diaphragm Wall Construction for TBM Launch Box

Crews have begun constructing the 35‑metre‑deep diaphragm walls that form the permanent TBM launch box at Clovelly Park.
This launch box will send two 4.5 km TBMs northward.

🏭 6. Supporting Infrastructure Installed

Spoil handling systems, conveyor routes, bentonite plant, and water treatment facilities are being established to support tunnelling operations.

🚇 7. Tunnelling Program Timeline Confirmed

Major works began in 2025.
Tunnelling is scheduled to commence in the second half of 2026, meaning early 2026 is focused on launch‑box completion and TBM assembly.

By early 2026, the Southern Precinct is essentially in full pre‑tunnelling mode:
• Site fully established
• TBM components delivered and assembly progressing
• Launch box excavation and diaphragm walls well underway
• Traffic diversions and new link roads operational
• Support plants and conveyor systems being installed
• Workforce facilities active
• Tunnelling start date locked for late 2026

For more information of this project visit - https://www.t2d.sa.gov.au/


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