M1/M3 Pacific Motorway Upgrade

Location: Brisbane, Queensland

[completed] Installation of four vital drainage culverts under a busy motorway is now complete. The four microtunnelling drives ranged from 69m to 90m in length with a total distance of almost 300m. The Brisbane based works were a part of the Pacific Motorway Upgrade – M1/M3/Gateway Merge Project that served to upgrade approximately 3.8km of southbound lanes of the Pacific Motorway between the Gateway Motorway and Rochdale Road.

Scope and project details:

    • 4 x drainage culverts
    • 69m to 90m drive lengths
    • 1800mm OD pipe
    • Iseki Uncle Mole TCC
    • Use of standard & rock cutting wheel utilised to suit ground geology