• The Great Northern Highway Koodaideri Bridge Project achieved a significant milestone on the 19th of June with the successful installation of its four Precast T-Roff Beams.  

Each beam weighs 144 tonnes, 33 metres in length, 3.35m wide and 1.8m deep and was placed without incident and without impeding traffic on the Great Northern Highway.   

The Beam lift involved coordinating a diverse range of specialist teams and resulted in a coordinated and incident free success. Key highlights on this activity includes following:

  1. The T-Roff beams were manufactured in Perth and transported 1,368 km to site in four days using a tandem prime mover with a pilot escort.
  2. The beams were installed using Two 500 tonne Hydraulic Cranes under a dual lift configuration. This ensured each end of the beam can be controlled by each crane and precision placed simultaneously into position without imposing eccentric and or lateral loads on the bridge bearings.  
  3.  All four beams were safely lifted and placed into position within a 10-hour shift with no interruptions to the Great Northern Highway and the ongoing embankment construction activity. 

The Project is being delivered by a Joint Venture between Coleman Rail and Clough Projects (ACJV) and is managed by Main Roads WA at a cost of $23.5m. The Project commenced in November 2019 and has an expected completion in August 2020. In addition to the bridge, the project scope of works also includes the realignment of 3.6km of Great Northern Highway for the bridge approaches and Koodaideri Mine Access Road intersection works.

This success is a testament to a great team effort and hard work from the Project Team, thank you all for a job well done!