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By Sam Gibbs on at

Meet the Machine That's Going to Tunnel Under London

The £14.8bn Crossrail project is set to commence tunnelling in March next year in Royal Oak near Paddington, London. The plan is to bore a 13 mile underground tunnel connecting with overland sections to cover the 73 miles from Shenfield and Abby Wood to Heathrow and Maidenhead -- East to West London. To do that, TfL's got itself eight enormous tunnel boring machines that look like immense jet turbines.