Publications

The restoration of Tharwa Bridge in the ACT has achieved the objective of providing a high level flood route and main thoroughfare across the MurrumbidgeeRiver, while preserving the structure’s national heritage value. The design has kept as close…

The paper summarizes laboratory tests carried out by RTA Bridge Engineering to investigate different factors affecting the reliability of bolted connections for bridge deck expansion joints. The test rig comprised steel plates bolted to a large…

The RTA Bridge Engineering Branch and Asset management Section routinely assess proposals by external developers that involve deep excavations for new infrastructure construction located adjacent to its bridge structures. These excavations have the…

Described as being 'one of the finest pieces of architectural iron-work in the world', the High Level Bridge in the UK recently underwent a major programme of investigation, assessment, strengthening and refurbishment. Constructed in 1849, the two-…

Since the introduction of the limit state design method for Australian bridge design in the Austroads Bridge Design Code in 1992, there has not been an associated limit states timber bridge design code. The last applicable code was the working…

The Kawarau River Bridge in New Zealand has presented some challenges to address design shortcomings identified after more than 40 years of service.

Infrastructure shortage and aging are worldwide issues. Australia, in particular, faces unique challenges in maintaining infrastructures such as roadways and bridges. Corrosion is the primary cause of failure in steel bridges, and is minimised by…

All the existing bridges require a maintenance regime to enable the structure to sustain the current traffic loads. The defects in the structure can be identified through regular inspections. There should be a defined inspection procedure not to…

The 2.5km long West Gate Bridge comprises an eastern and western concrete approach viaduct, 871m and 670m respectively in length either side of the 850 m long cable stayed steel box girder main span section. The key objective with the West Gate…

The $1.95B Ipswich Motorway Upgrade in South East Queensland is Australia’s largest road infrastructure Alliance. Origin Alliance, a team comprising the Department of Transport and Main Roads, two designers and three contractors, were tasked with…