The Northconnex project involved the construction of a nine kilometre tunnel under Pennant Hills Rd from the M1 Motorway at Hornsby to the M2 Motorway at Pennant Hills.

Client: Lendlease

Duration: Sept 2016 – Dec 2019

Scope of Works:

Civil & Tunnel completed works across the length of the project including:

  • Excavation of rock cuts for the widening of the M2 motorway, including final trim of rock batters with GPS guided twin headers
  • Deviation of the Benson Close Water Main to enable noise wall construction along the M1 Motorway
  • Installation of tunnel drainage including rock sawing, trench excavation, pipe and pit installation and concrete encasement
  • Installation of ITS cable route including subduct
  • Installation of 150 and 250 DICL fire and deluge main
  • Supply of Bull Gang crews
  • Supply of tunnel plant and labour for tunnel fit out works