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HS2 Twin Bore Tunnels

Progress of the twin bore tunnels being built for HS2

Digging

14%

Side Tunnels

29%

Surface Buildings

14%

Completed

43%

All twin bore tunnels

Euston Tunnel

Digging
Digging

Old Oak Common Tunnel

Completed
Completed

Northolt Tunnel East

Side Tunnels
Side Tunnels

Northolt Tunnel West

Surface Buildings
Surface Buildings

Chiltern Tunnel

Completed
Completed

Long Itchington Wood Tunnel

Completed
Completed

Bromford Tunnel

Side Tunnels
Side Tunnels