Publications

In September 2020 a 128 km/hr gust of wind caused a truck travelling over the Auckland Harbour Bridge to tip over damaging a diagonal member of the central truss bridge at the middle of the main span. This incident took the central four lanes of…

The $400 million Tonkin Gap and Associated Works Project is part of an infrastructure package announced in 2019, addressing a major bottleneck on Tonkin Highway between the recent Gateway WA and Northlink WA projects and preparing the existing…

Waka Kotahi NZ Transport Agency issued in early 2022 a substantial amendment (amendment 4) to the Bridge manual (3rd edition). A feature of the amendment is a significant upgrade of the design load combinations and load factors. The Bridge manual…

Austroads is currently updating Section 3: Inspection, Testing, Monitoring and Reporting of the Guide to Bridge Technology Part 7: Maintenance and Management of Existing Bridges. The project involves taking a fresh look at the inspection process to…

Pot bearings installed in bridges constructed before 1970 are coming to the end of their nominal 50-year design life. In recent years, a new generation of spherical bearings has become available as an alternative to pot bearings. These bearings…

The 11th Austroads Bridge Conference brought together more than 400 delegates from Australia and New Zealand. A diverse audience comprising 

Durability of post-tensioning tendons is an important backbone for the achievement of the desired service life of prestressed post-tensioned structures. Experience by others, including failures and rehabilitation of major pre-stressed concrete…

Two existing bridges located along the M80 Ring Road were upgraded as part of the M80 Upgrade between Sydney Road and Edgars Road. An additional lane was added to each carriageway without widening either bridge. Both bridges were constructed with…

Monash Freeway spans across Jacksons Road and Police Road, originally as twin, three-span, highly skewed continuous I-beam bridges. These twin bridges were constructed in the 1970s with a wide gap in the median. Since then, they have been…

Constructed in 1968, the Hay Street Bridge complied with bridge height clearance standards at that time. However, data indicated that the bridge was hit 20 times by over-sized vehicles, nine of those during the past five years to 2020. BG&