Seconded to KBR as Technical Advisor and Civil Structures Lead, contributing to the North West Program Alliance for the removal of three level crossings at McGregor Road, Main Street, and Racecourse Road along the Pakenham Line. My involvement spanned from development of the Target Outturn Cost (TOC) through detailed design and into the construction phase.
The project comprised the delivery of a ~2 km long elevated rail viaduct, consisting of twin U-trough structures formed by 68 spans of precast, prestressed and post-tensioned girders. Key elements included the introduction of 30 m long U-trough beams, the construction of a new premium station at Pakenham, the extension of the metropolitan rail line, and the delivery of the new East Pakenham Station underpass. The scope also incorporated approximately 5 km of architecturally treated retaining walls.To meet challenging corridor constraints and maintain continuous dual-line rail operations during construction, several innovations were implemented. These included the use of 2.7 m diameter monopile foundations and long-span (30 m) prestressed beams, enabling efficient construction while minimising disruption to the surrounding community.