The 140t TBM began its journey at the LPT site in Hurst in July of last year. In total, it has travelled 6.7km underneath London, reaching depths of up to
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Construction of the latest phase of National Grid’s London Power Tunnels will reach a major milestone later this month with the launch of its second tunnel boring machine (TBM) following its delivery to site this week.
The TBM, named Christine after construction diversity and STEM champion Christine Townley who was executive director of the Construction Youth Trust, will be used by contracting joint venture Hochtief Murphy to drive the tunnel from Hurst to Crayford. The tunnel is part of 32.5km of new 3m diameter tunnels being driven below south London between Wimbledon and Crayford for the £1bn scheme to upgrade the area’s power network.