- Legacy Way Tunnel: Transcity has started major construction activities at the western worksite on the northern side of the Western Freeway, Toowong. Since April 2011, Transcity has been establishing the western worksite, constructing the tunnel entry portal and preparing for the start of tunneling in 2012.
Airport Link Tunnel: One of the longest and largest infrastructure projects ever built in Australia is just six months away from completion and remains on schedule for completion by 30 June 2012.
Pringle Hill Tunnel: As part of the Northern Network Alliance (NN A), the Northern Pipeline Interconnector – Stage 2 (NPI) is a vital piece of infrastructure designed to help secure the water supply for South East Queensland, including the Sunshine Coast. The 2.1 m internal diameter tunnel is distinctive on this project, due to the length (1,032 m), the elevation difference between the ends (63 m), and the large volume of grout required to fill the annulus around the 1.29 m external diameter carrier pipe.