Technical details
Thiess John Holland JV

Completed in 2012

Brisbane, QLD
Tunnel design, constructability analysis, cost analysis

SYSTRA Bamser provided key individuals into the TJH team for the duration of the tender process.

Description Of Project

The Airport Link (APL) is a 6.7km toll road, constructed predominantly in tunnels, connecting Brisbane’s Northern Suburbs, the airport, and the inner-city suburbs of Brisbane.

The Northern Busway is a two-lane, two-way bus-only roadway connecting Kedron to the Inner Northern Busway and the Brisbane CBD. The high capacity rapid transit system was completed alongside the APL project by the same delivery consortium.

Opened in July 2012, Airport Link is the longest and most complex road tunnel in Australia built by a variety of construction methods including large diameter TBM’s (12.4m), roadheaders (17 no.), drill and blast, cut and cover, and microtunnelling.

SYSREA Bamser Involvement

SYSTRA Bamser provided key individuals to support the successful Thiess John Holland JV tender team. Thiess John Holland (TJH) Joint Venture were selected by the QLD State Government to undertake the design, construction, and commissioning of:

  • Airport Link (the most complex road and tunnel engineering feat in Queensland’s history);

  • Northern Busway (Windsor to Kedron); and the Airport Roundabout Upgrade Projects.

Specifically, SYSTRA Bamser’s specialist engineers were required to:

  • Provide constructability assessments and detailed program review of all underground structures;

  • Conduct productivity analysis and cost planning based on first principles analysis;

  • Coordinate and review the tunnel profile design, vertical and horizontal road geometry, space proofing, and tunnelling equipment selection;

  • Lead the tunnelling group through pre-bid, EOI, and Optioneering phases of the tender process to recommend the final alignment and functional design for the significantly increased tunnel component.