Excavation of HS2’s longest tunnel completed Posted on January 21, 2026 by Guest authors Civil engineering construction work on the Chiltern tunnel, the longest tunnel on HS2, has been completed.
Birmingham Birmingham Curzon Street Buckinghamshire Colne Valley Grand Union HS2 Infrastructure Kenilworth Network Old Oak Common Rail News video West Midlands YouTube HS2 assesses progress made during 2025 Guest authors December 31, 2025 0 With HS2 soon to undergo a fundamental reset, it has assessed its achievements in 2025.
Aylesbury BAM Nuttall Buckinghamshire HS2 Infrastructure Kier Thame Valley video Construction of Buckinghamshire HS2 railway viaduct passes half way point Guest authors May 20, 2024 0 Construction of HS2 Thame Valley Viaduct passes halfway mark.
BAM Nuttall Buckinghamshire HS2 Infrastructure Kier Rail News video Wendover WATCH: Timelapse video of HS2 viaduct construction in Buckinghamshire Guest authors August 14, 2024 0 HS2 has released time-lapse footage showing the 3,700-tonne deck of the Wendover Dean viaduct being moved almost half a kilometre into position.
Civil engineering construction work on the Chiltern tunnel, the longest tunnel on HS2, has been completed.