Night-time operation in Warwickshire takes the giant ‘Dorothy’ Tunnel Boring Machine’s cutterhead back to Long Itchington Wood Tunnel north portal Impressive sight as the 160
• National Grid’s Tunnel Boring Machine completes almost 7km journey across South London • 140-tonne machine travelled at depths of up to 50m from Hurst
BDC 316 : May 2024
Night-time operation in Warwickshire takes the giant ‘Dorothy’ Tunnel Boring Machine’s cutterhead back to Long Itchington Wood Tunnel north portal Impressive sight as the 160
• National Grid’s Tunnel Boring Machine completes almost 7km journey across South London • 140-tonne machine travelled at depths of up to 50m from Hurst
