The Marieholm Tunnel in Gothenburg is a road tunnel with three lanes in each direction. The 306 m long immersed tunnel section crosses the Gota älv river. An important boundary condition to take into consideration during the execution was not to negatively affect the sensitive ecosystem of the river. The tunnel has a planned service life of 120 years.
The tunnel is constructed as an immersed tunnel. For this, three tunnel sections each more than 100 m long are produced in a dry dock, then brought into their final position and lowered to the riverbed. The dry dock directly extends from the course of the tunnel. After completion of the three tunnel segments, the tunnel access section is realized in this dry dock using the cut-and-cover construction method.
Construction period: 2014 - 2020
Züblin Scandinavia AB
The cooperation with PERI for finding the best formwork system for the tunnel elements has already started in the tender stage. The flexible but robust traveler system was one of the main points of the execution concept of the tunnel elements. The work continued in the project stage where the execution team and PERI´s technical support team has done all optimization together. The technical support in both stages is extraordinary and you can always count on the PERI team for ideas and good solutions to solve a problem.