Our projects

Providing vital bridging in major rail improvements

Thorney Lane, Iver

As part of the Crossrail project, a 73 mile (117km) new railway line in London, Network Rail built a new bridge over the line at Thorney Lane in Iver. The new bridge accommodates overhead cables needed to introduce greener and more reliable electric trains. The original Thorney Lane Bridge, along with many others along the route, was not high enough to allow room for the overhead electric cables, so needed replacing.


span bridge




hour installation


Part of major rail infrastructure project Crossrail
60m span bridge installed in just 4 hours
£25m project to install new bridges at Thorney Lane and Stoke Poges

Products used on this project

The challenge

During the removal of the old bridge over the Western Mainline between Maidenhead and Paddington and the construction of the permanent structure, a temporary bridging solution was required to maintain the flow of traffic.

To minimise disruption to the rail service and the public, the bridge needed to be installed within a four hour possession, or restriction of access period.

Our solution

After successfully installing a 50m temporary bridge at the Stoke Poges section, we worked with Balfour Beatty Rail to install a 60m span two-lane bridge at Thorney Lane.

A Mabey Universal Vehicle Bridge with cantilever footwalks was designed by our engineers and built on rollers alongside the railway in the three weeks prior to launch.

The 350te Mabey Universal Vehicle Bridge was launched into position by pushing it out across the railway and was installed safely within the short possession time.

The Thorney Lane project was shortlisted for a Rail Exec Most Interesting Award.

Crossrail is due to be completed in 2021, with the new line being officially named Elizabeth line.

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