Breakthrough for HS2 as first Birmingham tunnel section dug

HS2 has hit a major construction milestone with the breakthrough of its first Birmingham tunnel, completing the initial 3.5-mile bore of the Bromford Tunnel.
Giant tunnel boring machine Mary Ann smashed through at Washwood Heath today, marking the end of a 652-day drive beneath the M6, River Tame, and critical National Grid infrastructure – all completed without disruption.
The 125m-long TBM was launched in July 2023 by Balfour Beatty Vinci.Its crew of 450 specialist tunnellers worked arou