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tunneling

Crossrail Transforms London Transport to Move Millions

As one of Europe’s largest construction projects, Crossrail will transform rail transport in London, increasing rail capacity in central London by 10%, supporting regeneration and cutting journey times across the capital.

San Francisco completes Central Subway tunnel portal entrance

The identical twin TBMs weighed-in at 750 tons each and were affectionately named Mom Chung — for Dr. Margaret “Mom” Chung, the nation’s first Chinese-American physician — and Big Alma — for San Francisco philanthropist and socialist “Big Alma” de Bretteville Spreckles.

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