Norway

Both Tubes of the Solbakk Tunnel broken through

After excavating for more than four years, the first tube of the 7980 m long Solbakk Tunnel, currently the world`s longest subsea tunnel, was broken though at the end of 2017. The tunnel belongs to the northern contract section of the Ryfast project between Stavanger and Tau. The breakthrough of the second tube took place in January 2018.

The client is the Norwegian Roads Administration in Leikanger. The JV of Marti IAV Solbakk DA, comprising Marti Contractors Ltd., Marti Norge AS, IAV and TuCon a.s., was commissioned to carry out the construction work. The project will cost around 172 million...

Related articles:

Issue 2013-07 Bohrwagen | Jumbo

Sandvik DTi jumbos to excavate world’s longest subsea road tunnel

Marti IAV Solbakk DA, part of Marti Group of Switzerland, chose Sandvik DTi jumbos for the excavation of Solbakktunnel, a part of the Ryfast Project in Norway. With its length of 14.3 kilometers, the...

more
Issue 2019-06 Germany | Deutschland

Stuttgart 21: First Tube of the Untertürkheim Tunnel Broken Through

The Deutsche Bahn has reached another important milestone on the Stuttgart 21 project: in the middle of November 2019, after about two years of excavating the Untertürkheim Tunnel, the first of two...

more
Issue 2019-06

Clean Material Separation: Breaking out the Temporary Top Heading Invert in the Trimberg Tunnel

Numerous structures make the new building of the motorway A44, a link between the motorways A7 at Kassel and the A4 at Herleshausen in a west-east direction, a challenging infrastructure project....

more
Issue 2015-07 Solbakk Tunnel, Norway

Amberg Navigator helps building the World’s longest sub-sea Road Tunnel

The Ryfast tunnel project, the world’s longest sub-sea road tunnel system, is situated close to Norway’s fourth largest city of Stavanger. The project consists of three tunnels: Solbakk tunnel,...

more
Issue 2019-03 Finland + Estonia

15 Billion Euros Funding for Subsea Tunnel between Helsinki and Tallinn

The development company FinEst Bay Area Development in Helsinki intends to build a rail tunnel with two tubes under the Gulf of Finland between the Estonian capital of Tallinn and the capital of...

more