South Australia Accelerates $15.4B Torrens to Darlington Tunnels and New Women's and Children's Hospital in Adelaide

Record $27.3B State Infrastructure Pipeline Transforms Adelaide's Transport and Healthcare Corridors

ADELAIDE, South Australia — Driving the largest capital infrastructure program in South Australia’s history, the Government of South Australia and federal infrastructure agencies have achieved pivotal engineering milestones on the landmark $15.4 billion River Torrens to Darlington (T2D) Project. The final 10.5-kilometre section of the 78-kilometre North-South Corridor features twin three-lane underground tunnels that will allow freight and commuter traffic to completely bypass 21 sets of traffic lights between Gawler and Old Noarlunga.

Concurrently, major civil foundations are progressing on the $3.2 billion New Women’s and Children’s Hospital (nWCH) situated adjacent to the Royal Adelaide Hospital in the world-class Adelaide BioMed City precinct on North Terrace, establishing an unprecedented concentration of biomedical and clinical research excellence in the Southern Hemisphere.

Engineering Breakthroughs Across Subterranean Tunnels and State-of-the-Art Clinical Wards

Major civil works and hospital architectural contracts are synchronized to deliver long-term urban benefits:

• Torrens to Darlington TBM Launch Sites: Civil contractors are completing heavy ground stabilization and launch cavern excavations for massive Tunnel Boring Machines (TBMs) that will carve the Southern and Northern tunnels up to 50 metres underground.
• New Women's and Children's Hospital Capacity: The dedicated 414-bed pediatric and obstetric hospital facility includes 56 more beds than the current hospital, 10 state-of-the-art operating theatres, expanded intensive care units, and a dedicated rooftop helipad.
• North Terrace BioMed Integration: A pedestrian bridge and dedicated clinical transfer corridors link the nWCH directly with the University of Adelaide, University of South Australia, and the South Australian Health and Medical Research Institute (SAHMRI).
• Suburban Commuter Time Savings: Completion of the T2D motorway corridor is projected to slash peak transit times along South Road by up to 30 to 40 minutes per return commute, removing heavy transport vehicles from residential neighborhoods.

Catalyzing Long-Term Economic Prosperity and World-Class Healthcare for South Australia

Supported by South Australia’s record $27.3 billion four-year infrastructure pipeline, the dual advancement of the T2D corridor and BioMed City projects creates over 5,500 specialized engineering, construction, and healthcare jobs. Together, these transformative investments future-proof Adelaide’s urban connectivity while delivering world-class pediatric and maternal medical services for generations to come.

With disciplined planning and strong intergovernmental alignment, Adelaide continues to solidify its international reputation as one of the world's most liveable, innovative, and resilient mid-sized metropolitan centers.