The Fifteen Billion Pound Railway
BBC TWO
Sunday 11 June 2017 18:00 - 19:00 (60 mins)
2/3. Tunnels Under the Thames: This episode follows engineers building London's brand new underground railway, Crossrail, as they rebuild a Victorian tunnel in London's East End. Also in HD. [AD,S]
The Fifteen Billion Pound Railway may be available on playback
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