Pacific Highway Upgrade, Nambucca Heads to Urunga

NSW, Australia



Roads and Maritime Services (RMS), New South Wales

Main Contractor:


Lend Lease Engineering Pty Limited

Foundation Contractor:


Bauer Foundations Australia

Scope of work:


Construction of 242 nos. of 900mm, 1050mm and 1200mm diameter bored piles up to 33.9 m in depth for total 22 bridges.

Construction Period:


August 2014 to April 2015


The project involved the upgrading of the existing two-way Pacific highway to a four lane divided carriageway with safe driving conditions for speeds of 110 km/h. Lend Lease Engineering was engaged by RMS to design and build this 22km road upgrade (A$780 million) between Nambucca Heads and Urunga in Northern New South Wales, Australia. The Pacific Highway upgrade is one of the largest road infrastructure projects in NSW. It connects Sydney and Brisbane, and is a major contributor to Australia's economic activity.


Ground conditions varied at the different bridge locations, generally boreholes encountered fill, residual silts and clays overlying weathered phyllites and quartz phyllites.

Piles were required to be drilled and embedded into low to moderately weather medium strength with rock strength from 0.3 to 20 MPa (UCS), the socket length ranges from 0.5m to 5m depend on the rock strength and structural requirement. Two Bauer BG28 rigs were utilized to complete the piling works.