Having bored through nearly 5 mi. of bedrock over three years and successfully bored through, MamaJo, the Tunnel Boring Machine (TBM) manufactured by Herrenknecht is now being disassembled.
https://www.wane.com/news/local-news/crews-begin-deconstructing-mamajo/
cover tunnel photo by: Matt Brown from London, England / CC BY
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Lane Construction, owned by Italian WeBuild using German TBM to build tunnels in the USA. No comment.