THE extension of London Underground’s Northern Line in South London took a major step forward on November 8 as tunnel boring machine (TBM) Amy broke through at Kennington to complete the job.
A pair of two-mile (3.2km), 17ft (5.2m) diameter tunnels have been bored from the former Battersea Power Station to Kennington via Nine Elms.
TBMs Amy and Helen have been at work since spring to create the north and southbound tunnels, which join up at Kennington with the Northern Line’s Charing Cross branch.
Trains are due to start running to Battersea in 2020 to support regeneration of the area, including 20,000 new homes.
This will be the first major extension to the Tube network since the Jubilee Line reached Stratford in 1999.
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