Tunnelling attention in Europe this year has swung from the Alps, following completion of excavation on the world-beating 57km long Gotthard high speed rail tunnel, to the UK with a focus on London, where construction of the huge €16.6 billion Crossrail project is just getting underway. The 118km long east/west rail link has a highly complex 21km long twin bore central section passing right beneath one of the world's busiest and largest cities. Some €183 million worth of design contracts have been under way over the last two years, with big consultants such Arup, Mott MacDonald, and Prescott Wilson, working to thread this line under, in and around multiple metro lines, power tunnels, station interchanges and other services.
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