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HS2 celebrates first Birmingham tunnel breakthrough

First breakthrough in Birmingham for HS2 TBM as Mary Ann completes 3.5-mile Bromford Tunnel drive

Duncan Moore
The cutterhead of HS2 TBM Mary Ann after it had completed the first tunnel breakthrough in Birmingham

The cutterhead of HS2 TBM Mary Ann after it had completed the first tunnel breakthrough in Birmingham | Credits: HS2

HS2's TBM Mary Ann has broken through, marking the end of her mission to excavate the first bore of what will soon become the longest railway tunnel in the West Midlands. The 125m-long machine began...

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