Sydney Gateway Bridges

Sydney Gateway Bridges

This presentation will provide a detailed look at the design and construction of the 13 bridges delivered as part of the Sydney Gateway project—an ambitious road infrastructure initiative connecting Sydney’s motorway network with the Domestic and International Airport terminals and Port Botany.

Set within a tightly constrained brownfield environment, the project team overcame numerous technical and logistical challenges, including heritage canal crossings, critical utility interfaces, contaminated land, and Sydney Airport’s Obstacle Limitation Surface (OLS).

Attendees will gain insights into a wide range of structural forms and construction methodologies adopted across the project, from the world-first incrementally launched twin network arch bridges over Alexandra Canal, to long-span steel box girders installed via Self-Propelled Modular Transporters (SPMT), to complex viaducts using Super-T and composite steel spans.

The presentation will explore how these bridges were designed to navigate tight spatial envelopes, high skew geometries, and dynamic loading conditions, and will highlight the use of bespoke temporary works, digital planning tools, and innovative launching equipment to safely deliver the structures in an active transport corridor.

Event speaker - Daniel Fryirs

Daniel Fryirs is a Chartered Professional Engineer with over 13 years’ experience in bridge design, construction methodology, and temporary works. He has contributed to major infrastructure projects including WestConnex, Sydney Metro, and Sydney Gateway. As lead engineer for the two bridges on Qantas Drive over Alexandra Canal and the Port Botany Rail Line, Daniel was responsible for the design and delivery of one of the largest and most complex structures on the Sydney Gateway project He is passionate about advancing bridge design through practical engineering solutions and collaboration across disciplines.

This is an in-person technical event suitable for bridge, structural, and construction engineers, as well as professionals with an interest in complex project delivery and innovative bridge-building techniques.