An important milestone achieved: end of tunnel drive at the Anneberg-Skanstull tunnel in Stockholm

This is a very important milestone for the team of the Joint Venture HOCHTIEF Implenia HB (equal shares of HOCHTIEF and Implenia) in close collaboration with the client Svenska Kraftnät (the Swedish National Grid).

As the second of four phases in the „City Link“ project , the Anneberg-Skanstull tunnel will help improve electricity supply in the Greater Stockholm region. The project also includes six ventilation shafts, elevator systems and the construction of technical buildings for electrical equipment at Anneberg and the shafts across the city. 

In addition to the extremely hard rock conditions and a large volume of injected grout material which was required throughout the whole length of the 5 m-diameter tunnel, the work took place under densely populated areas of Stockholm and in the immediate vicinity of the Strömmen passage (a part of the Baltic Sea) as well as several historic and sensitive buildings such as the University of Stockholm, museums and galleries.

Erwin Scherer, Head Division Civil Engineering of Implenia about the milestone: “I am very proud of our experienced team, applying their comprehensive tunnelling experience and showing great commitment to the project. I thank everyone for their excellent work and our client Svenska Kraftnät for their collaboration and trust. Glück auf!”