The inauguration ceremony of the first TBM to be used to drive the access tunnel of the Gotthard motorway tunnel’s second tube was held on the 09/06/2022. The Client is the Federal Roads Office FEDRO, the designers and the construction management are the DL Bedrina consortium, led by the Pini Group. The TBM from this summer will excavate the access tunnel to overcome the South disturbance zone (Guspis), which is about 300 m long and located 4.9 km from the Airolo portal.

The TBM – is called Delia, after Reto Marti's daughter, who represents the 4th generation of the Marti family – and is operated by Valentina Kumpusch project manager for the Client, Sergio Massignani for Marti Group and Daniele Stocker as project manager for the works management of Pini Group.  

The assembly of a second TBM is also underway. It will excavate the access tunnel from the north side to overcome the Fault zone (Mesozoic), which is 270 m long and 4 km away from the Göschenen portal. Thanks to the two access tunnels, the two TBMs that will excavate the main tunnel will be able to proceed smoothly.  

On both the north and south side, preparatory work - which began last autumn - is continuing for the excavation of the main tunnel, which is scheduled to start in 2024. Work on moving the service tunnel has already been completed in Airolo, while in Göschenen it will be completed in the coming weeks. For further information please click here and ch/50 for the tunnelbuilder archive. Also log on to https://galleriasangottardo.ch/ , https://www.marti.com/en/  and https://www.pini.group/ . 23/22.