The new tunnel in London will replace a maze of cables running under London’s streets which are wearing out and need replacing, but rather than digging up loads of roads, the National Grid has opted for a deep tunnel instead.
https://www.ianvisits.co.uk/blog/2019/12/24/huge-tunnel-to-be-dug-under-south-london/
A 20 mile tunnel almost as big as a tube tunnel is to be dug under South London, linking Wimbledon to Crayford near Dartford, via New Cross.
cover tunnel photo by: Matt Brown from London, England / CC BY
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