Metronet celebrating concrete works

WA’s Metronet Project has been clocking up concrete milestones throughout July on the Yanchep Rail Extension, Armadale Line and Victoria Park-Canning Level Crossing Removal.

The Yanchep Rail Extension will extend the Joondalup Line 14.5 kilometres north with new stations at Alkimos, Eglinton and Yanchep, 56 km north of Perth’s CBD. The project will deliver nine road-overrail bridges, three green bridges and an underpass for animals to safely cross the rail corridor.

Around 3000 retaining wall piles have been completed for the Yanchep Rail Extension. At the peak of installation, seven piling rigs were operating onsite to drill the holes for the concrete piles. More than 40,000 cubic metres of concrete were poured to construct them.

With the retaining wall piling nearing completion, teams will construct capping beams to hold the row of piles in place. Over 1100 tonnes of steel reinforcement will be used for the capping beams before another 6100 m3 of concrete is poured to construct the beams themselves. 

Shotcreting will be applied to exposed sections of the retaining wall following excavation. These walls will stretch from just below existing ground level to the new rail level.

For the Yanchep Station itself, concreting works for the platforms and concourse level are now complete (pictured).

On the Armadale Line, 530 (75%) precast concrete L-beams have been completed that will be used for the Victoria Park-Canning Level Crossing Removal Project to elevate the Armadale Line.

About the author

Desi Corbett

Desi is our weekly news journalist and the editor of Concrete in Australia magazine for 10 years. She has been heavily involved in all forms of engineering since 2013; part of a 30-year writing career across a range of subjects and media.