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Technician tour shows students the ropes at railway scheme

A-level students from Queensmead School in Middlesex were shown how maths and science could translate into a career in civil engineering on a recent site tour of the Stockley Airport Junction scheme in west London.

The site tour was led by ICE technician member Mason Twigg, temporary works manager for Carillion, the project’s contractor. Twigg is also a STEMnet volunteer, inspiring young people into science, technology, engineering and maths (Stem) careers, and has worked with Queensmead School providing careers advice and helping students with engineering coursework.

Fifteen students joined the tour of the project, which will allow for the operation of the Crossrail fleet in the Stockley Airport Junction area. A 1.5km long viaduct is being constructed to carry the combined up airport relief/up airport line from the Heathrow Spur.

The viaduct structure will create a new elevated route for the Crossrail fleet, and will curve across the running lines at its western end, then run parallel to the north of the railway, bifurcating into a northern section and a southern section and recrossing the relief lines.

Students saw the Western Flyover Bridge and some of the concrete kerbs being lifted into place for the North Viaduct. They also met professionals from across all aspects of the Carillion team.

Twigg commented: “Having progressed through the civil engineering profession via the technician route, I am always keen to show young people a live civil engineering project in full flow, and the many different roles and opportunities that are available on a project like this - on the construction side and also the environmental management and commercial aspects.

“My involvement with Queensmead School has brought me great reward - I am able to share my passion for civil engineering and support the civil engineers of tomorrow in their professional development,” he added.

  • The Ambassador scheme is run by STEMnet, a network of professional institutions and organisations from the Stem sectors that fosters relationships with schools and students. To find out how to register as a STEMnet Ambassador, go to

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