‘Nothing more than a toothpick’: Court showdown begins over Bertha’s delay in Highway 99 tunnel
...P) in operation of the world's largest TBM Bertha has caused the delays not the...nel contractors threw away pipe fragments that Bertha hit Instead of settling th...s for delays caused when tunnel-boring machine Bertha stalled in 2013. https://...Reply on topic: Bertha of Japan: The world's largest EPB TBM ever produced.
http://worldkings.org/news/weird-but-true/worldkings-worldkings-news-bertha-japan-world-s-largest-earth-pressure-balance-tunnel-boring-machineAppellate Court Revives Lawsuit Over Tunnel Boring Machine Damage
The Washington Court of Appeals revived a lawsuit that seeks more than $85 million in damages to Big Bertha. https://www.claimsjournal.com/news/west/2021/08/05/305224.htm
cover tunnel photo by: Matt Brown from London, England / CC BY
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