Civil works completed on HS2’s first ‘green’ tunnel

High-speed rail project HS2 has revealed its first completed ‘cut and cover’ tunnel at a site on the western edge of London.

Restored HS2 grassland begins to flourish

HS2 have been working to improve the area around the Chiltern Tunnel.

With HS2 soon to undergo a fundamental reset, it has assessed its achievements in 2025.

The deck of HS2’s Colne Valley Viaduct in Buckinghamshire has been completed to break a 137-year old record as Britain’s longest railway viaduct.