The Challenge:

Kier has worked on six major contracts as part of the overall £15bn Crossrail project, which will increase London’s rail-based transport network capacity by 10%, supporting regeneration across the capital.

Construction of the Elizabeth Line as part of the Crossrail project demonstrates our ability to deliver several complex infrastructure works at the same time. It is the largest construction project in Europe and when complete, Elizabeth Line trains will run 118km from Maidenhead and Heathrow in the west, through new twin-bore 21km tunnels under central London, to Shenfield and Abbey Wood in the east.

The Solution:

At the Western Running Tunnels, Kier drove two 6km long tunnels between Royal Oak and Farringdon Station, under some of the most expensive real estate in the world as part of the largest construction project in Europe. The tunnels were lined by 60,000 precast concrete segments. In order to produce and store the vast quantities of concrete required for the project, Kier built a bespoke precast segment manufacturing facility in West London, which peaked at over 200 segments per day.

Other contracts included:

  • Whitechapel station enabling works: temporary structural steel decks
  • Bond Street and Tottenham Court Road station tunnels: excavations, sprayed concrete lining and settlement mitigation works
  • Liverpool Street station Moorgate shaft and Western ticket hall: piling, excavation, propping, and installing deep ring beams
  • Whitechapel station advanced works: diaphragm walling, piling and deep shaft construction
  • Farringdon station: civil engineering, tunnelling, building, mechanical, electrical and plumbing, and final fit-out, commissioning and handover. Over 100 diamond-shaped precast concrete segments were pieced together to create a dramatic lattice roof inspired by the historic Hatton Garden jewellery quarter located opposite the station.

The Impact:

These engineering projects will lead to Farringdon becoming one of the UK’s busiest train stations, with over 140 trains flowing through its new interchange each hour.

As the only station served by Thameslink, Elizabeth Line and London Underground together, it will be a key link in bringing passengers from outer London to the business hubs in the City and Canary Wharf. Crossrail will also make it possible to connect directly to three of London’s five airports.

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