Australia’s longest pre-stressed bridge girders have been successfully placed for the Port of Brisbane’s $110 million Port Drive Upgrade project, with the longest span measuring 46 metres long.
The work is part of the duplication of the new Lucinda Drive Bridge.
Port of Brisbane Pty Ltd (PBPL) CEO, Roy Cummins said the length was required to safely span the existing Queensland Rail lines, removing the risk and need for construction or future maintenance work associated with the new bridge within the rail line corridor.
“Our Port Drive Upgrade project is primarily focused on safety, efficiency and innovation. The design and placement of these Super I girders – being the longest on any road project in the country – achieves all of these,” said Mr Cummins
“Port of Brisbane has worked closely with the Queensland Department of Transport and Main Roads (TMR), the project’s Principal Contractor, Seymour Whyte, and its designer, Arup, to design and develop the Super I girders, and is extremely proud of such a major engineering achievement.”
Acting Minister for Main Roads, Road Safety and Ports Steven Miles, congratulated the Port of Brisbane and its partners on this nation-leading engineering achievement.
"Queensland is setting the pace when it comes to road engineering, design and construction," Mr Miles said.
"This project will help the Port of Brisbane deliver on its safety and efficiency enhancements, which is good news for the Queensland economy as a whole."
Member for Lytton Joan Pease said the project would deliver a more efficient, safer access to the Port.
"The overall project is supporting, on average, around 390 jobs during each year of construction and is essential to maintaining the Port's competitiveness and productivity," Ms Pease said.
Mr Cummins said: “The girders were cast in Bromelton, near Beaudesert, and due to their length, required a major transport plan. This was developed with TMR, Seymour Whyte and QPS to transport them to the Port.”
“For safety, a 156 km transport route was agreed to avoid built-up areas and ensure the roads travelled could handle such large and heavy vehicles, and a limit was set of transporting only one girder each night.
“As a result, 13 40metre-plus girders took an overnight journey (a total of 13 nights) of up to 9 hours on specially-designed and escorted 79 metre long haulage trucks to the Port of Brisbane. Four other 20 metre girders were transported during the day.”
- Bridge span lengths: 46m (span 2), 43m (span 1) and 14m for (span 3)
- Each girder took up to 9 hours to transport and an additional three hours to lift and place
- A 630 tonne crawler crane was required to lift each girder
- Each 46m girder weighs approximately 140 tonnes and uses 53 cubic metres of concrete
- The 79m haulage vehicle includes two prime movers and two Goldhofer hydraulic trailers to transport each girder.
The Super I girders are one of several major innovations for the Port of Brisbane’s project. The project also incorporates the placement of around 50,000 tonnes of EME2 asphalt and is addressing stormwater requirements through its Queensland-first offsite stormwater project in the Lockyer Valley.
The Port Drive Upgrade project is also targeting an ‘Excellent’ rating for ‘Design’ and ‘As Built’ with the Infrastructure Sustainability Council of Australia (ISCA).
to view a timelapse of the transport and placement of the girders.