kersploosh@sh.itjust.worksM to

Engineering@sh.itjust.worksEnglish · 1 year ago

Front view of Bertha, once the world's largest tunnel boring machine

www.thestructuralengineer.info

3

59

Front view of Bertha, once the world's largest tunnel boring machine

www.thestructuralengineer.info

kersploosh@sh.itjust.worksM to

Engineering@sh.itjust.worksEnglish · 1 year ago

3

Bertha was custom built to dig the State Route 99 tunnel under Seattle. It dug under the city (off and on) from December 2013 to April 2017.

Wikipedia link for more info

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Aes Sedai@lemmy.world
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1 year ago
Here’s the world’s biggest TBM.

Tuen Mun-Chek Lap Kok
hemko@lemmy.world
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1 year ago
Boring.
darcy@sh.itjust.works
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1 year ago
Boring.

Engineering@sh.itjust.works

engineering@sh.itjust.works

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