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…

Cable-stayed bridges are currently the most attractive bridge type in the world. Their main spans cover a range from about 100m with one tower up to more than 1000m. Their intermediate construction stages are stable, because the flow of forces is

The Ross River Bridge will be located at the mouth of the Ross River in Townsville. This paper discusses the options which were examined during the Preliminary Design phase and the Detailed Design of the Bridge. Challenges which had to be overcome…

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…

The Manukau Memorial Gardens Arch is a new road bridge over a small creek to allow expansion of the cities cemetery. The project required careful attention to detail to provide a solution which considered environmental, cultural and technical issues…

The Newmarket Viaduct plays a vital role in the Auckland motorway network. The original 1966 structure is being demolished in tandem with construction of its replacement whilst keeping the motorway fully operational. The New Zealand Transport Agency…

The Howe truss was patented in USA initially in 1840 and again in 1850 and went on to become one of the primary timber truss designs used in North America. The adaptation of the Howe truss in NSW into the two distinct forms known as the “Allan” and…

The New Zealand Transport Agency (NZTA) has owned and operated emergency Bailey Bridges for about 60 years. These bridges are available for emergency and semi-permanent use by public users (Central Government and Local Authority) and private users.

A 350m long bridge has been constructed over the Hunter River near East Maitland as part of Third Hunter River Crossing Project. The bridge consists of 12 spans of Super-T girders with central spans of 30m. The bridge is located in an area that is…