How did Brunel - era tunnellers dig the tunnel under Thames?
I think this sentence says a lot: 'It was painstakingly slow and unpleasant work due to terrible air quality and ingression of filthy Thames water'. There is a fine animation (Brunel Museum page) https://www.thebrunelmuseum.com/digging-the-tunnel/Tags: tunnelling, tunnelling history, history of tunnelling
cover tunnel photo by: Matt Brown from London, England / CC BY
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