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INFRASTRUCTURE

US tunnelling team achieves major milestone with TBM breakthrough

TBM Chessie breaks through after mining more than 6300ft on major US infrastructure project

Duncan Moore
TBM Chessie breaking through on the Parallel Thimble Shoal Tunnel Project at the Chesapeake Bay Bridge-Tunnel (CBBT), Virginia, US

TBM Chessie breaking through on the Parallel Thimble Shoal Tunnel Project at the Chesapeake Bay Bridge-Tunnel (CBBT), Virginia, US | Credits: Chesapeake Bay

The Parallel Thimble Shoal Tunnel Project at the Chesapeake Bay Bridge-Tunnel (CBBT), Virginia, US, recently reached a significant milestone when the TBM Chessie reached her end destination after mining...

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