Publications

Welding procedures have been developed for the repair and maintenance of wrought iron bridges. New qualification requirements are proposed that take into account the limited ductility of wrought iron yet allow an appropriate assessment of the…

Between 1871 and 1893, 27 wrought iron lattice truss road bridges were built in NSW. Of these, 17 were built under the guidance of the noted bridge designer John A. McDonald and the 16 remaining are managed by the NSW Roads and Traffic Authority…

Concrete deterioration due to reinforcement corrosion poses one of the greatest risks to the integrity of the Roads and Traffic Authority’s (RTA’s) bridge stock. As an alternative to Impressed Current Cathodic Protection (ICCP), the RTA is assessing…

In June 2007, a severe storm over the Hunter Valley caused extensive damage to private and public infrastructure throughout the Hunter Valley. Moderate flooding caused damage to the abutments of the nominated bridges. The NSW RTA engaged the NSW…

A Consortium of the Welding Technology Institute of Australia (WTIA) members consisting of Australian Rail Track Corporation (ARTC), RailCorp, Roads and Traffic Authority of New South Wales (RTA), and Transport Main Roads (TMR), Queensland has…

Where road schemes require an alteration to alignment, width, or barrier containment standards on an existing bridge, the problems associated with achieving this are often significant. Records for bridges built more than 50 years ago are commonly…

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…

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-…

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

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…