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Projects

The second Gotthard Road Tunnel, a once-in-a-generation project

The complexity of the second Gotthard road tunnel goes far beyond excavating through robust rock and fault zones. Our teams are tackling space limitations, ambitious circularity targets and challenging geological conditions to keep this essential north–south connection running for decades to come.

This article by Sotiris Kanaris from New Civil Engineer is based on interviews with Xavier von Mandach, Managing Site Engineer at Implenia, and Udo Oppliger, Project Manager at Federal Roads Office FEDRO, both offering great insights into the engineering ingenuity behind this iconic Alpine project.

Engineers tackle faults, site limitations and ambitious circularity targets in Alpine road tunnel construction

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What really stands out is the combination of innovation and pragmatism: from creating underground caverns to house concrete and segment plants due to avalanche risk, to using lessons learned from the Gotthard Base Tunnel to handle fault zones.

And with around 7.4 million tonnes of excavated material to manage, FEDRO and the project team are setting new benchmarks in circular construction; almost all of it will be reused, including for rewilding Lake Lucerne and reshaping the Airolo landscape.

As Implenia, we are proud to be building this central piece of infrastructure for Switzerland and for the north–south corridor through Europe. A once-in-a-generation project, delivered by an outstanding team.

The project Secondo tubo San Gottardo - Lot 241, Main Tunnel North

Find out more: Secondo tubo San Gottardo - Lot 241, Main Tunnel North

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