WA’s biggest manufactured bridge beams installed on METRONET - Public Transport Authority of Western Australia
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WA’s biggest manufactured bridge beams installed on METRONET

  • Biggest precast concrete Tee-roff bridge beams built in WA installed over the weekend
  • Seven 50 metre beams lifted and installed at key METRONET project site
  • Beams manufactured by local company Georgiou Group in Hazelmere, supporting local jobs
  • Part of new Ranford Road Bridge being built for METRONET's Thornlie-Cockburn Link
  • New bridge will be higher and longer with six lanes and shared path on each side 

The biggest Tee-roff beams ever manufactured in Western Australia were installed as part of the METRONET Thornlie-Cockburn Link over the weekend.

The 50 metre beams were manufactured by local company, Georgiou Group, at its precast yard in Hazelmere.

Each beam consists of 14,000kg of reinforced steel, 120 stressing tendons and 73 cubic metres of concrete. They each weigh 197 tonnes and took 10 workers and two concrete pump trucks three days to manufacture.

Seven of the 10 beams were installed over the weekend, with the last three to be installed as the project progresses.

Tee-roff refers to a specially-designed beam developed in Victoria and first used in WA on the Northam Bypass project in 2001.

Tee-roff beams have become the preferred superstructure form for bridges as they enable a longer span, while using less material and reducing overall bridge load.

The beams have been installed on the new Ranford Road Bridge that is being built as part of the METRONET Thornlie-Cockburn Link.

The new bridge will be longer and higher to future-proof the rail corridor, and will have six general traffic lanes (three in each direction), bus lanes and a shared path on each side.

When the 17.5km Thornlie-Cockburn Link is complete, passengers using Ranford Road Station will be able to travel to Perth in about 29 minutes.

Minister's office - 6552 5500

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