UK: Euston site cleared ready for HS2 tunnel portal
The work, a major milestone for the project, will help pave the way for the arrival of the specialist tunnelling teams on site next year.
At Euston, HS2 will deliver 11 new platforms in two phases. This will more than double capacity at the station, as well as providing a new concourse and expanded Underground station, linked for the first time, to the nearby Euston Square tube station.
Twin 13 mile (21 kilometre) long tunnels, the biggest tunnelling project since Crossrail, will take the 360 km/h trains out of London via a new station at Old Oak Common linked to Crossrail. At the southern end, a tunnel portal will be built on the site of the carriage sheds, just south of Mornington Street Bridge.
The demolition, which took 9 months to complete was managed by HS2’s London enabling works contractor, CSJV working with demolitions contractor Keltbray. Up to 70 people were employed on site during the painstaking demolition of the sheds, which are adjacent to the west coast mainline.
Specialist teams used drones to survey the inside of the Victorian structure, before taking the fragile roof structure apart. In total, more than 7,000 glazing panels had to be removed from the 250 metre long building. The team then used a cranes to remove the 27 huge 50 metre long steel trusses which supported the ceiling. ■