Terzo Valico dei Giovi - Genoa Junction

Terzo Valico dei Giovi - Genoa Junction

A new high-speed railway line that will strengthen connections between Northern Italy and the rest of Europe

11 sustainable cities & communities 13 climate action High Speed Railways Sustainable mobility

Start of works

April 2012

Progress status


Data updated to September 2020

Sustainable mobility

Metros, railways, roads and highways that ease the mobility of people and goods, in a fast, efficient and sustainable way.

End benefits and advantages for citizens
Reduces travel times between cities
Connects Italy to the European railway network
Enhances freight services

April 16, 2021
Serravalle Tunnel Breakthrough

Last diaphragm removal of the Serravalle Tunnel, odd number track: the completion of the Serravalle Tunnel will allow the strategic connection of all the operational sites that develop in a section of the railway line of about 22 km.

Technical data of the project

Speed of project line


Total lenght of line




Sustainable KPI

Reduction of travel times


Passengers expected per year


Co2 emissions avoided per year

430,000 t

Terzo Valico: Italy’s longest railway tunnel route

The Terzo Valico is a new high-speed line that strengthens connections between the Ligurian port system and the main railway lines in Northern Italy and the rest of Europe. The project is part of the European Rhine-Alpine Corridor, which is part of the TEN-T network. The latter foresees enhancing the Genoa-Basel Rotterdam/Antwerp railway axis, to efficiently connect the most densely populated European regions with approximately 400,000 km of rail, of which the Terzo Valico is located at the southern end.

This strategic work will cut travel times between Genoa and Milan by 33% (the two cities will be connected in about an hour of travel). Once completed, it will become Italy’s longest railway tunnel. Works involve 12 municipalities in the provinces of Genoa and Alessandria, and the Liguria and Piedmont regions.

Excavations represent a central part of the construction work: 37 of the line’s 53 kilometers will be totally underground, with a difference in height above the tunnels touching 600 meters, before reaching the surface. If all the secondary connections of the lines are added to this, the project involves building 90 kilometers of tunnels, of which 28 kilometers are excavated with TBM and the remaining 62 with traditional methods. Construction sites have been opened along the entire route, allowing parallel progress on over 30 excavation fronts, with uninterrupted activity, seven days a week, 24 hours a day.

The Terzo Valico is a project that pays great attention to sustainability, both in the construction phases and during the user’s usage phase. It contributes to significantly reducing CO2 emissions, thanks to the shift from road to rail transport.

The characteristics of the mountains required using highly innovative excavation techniques, and new models to manage asbestos, which was found during the excavation phases. All this, within a circular economy process. All materials were analyzed with the “Mario Negri” IRCSS of Milan, the Polytechnic of Turin and the University of Genoa, before being delivered to the final sites, filled, re-naturalized, and finally returned to their original agricultural and naturalistic destination.

The Genoa Junction: a fundamental hub for connections, between the Port of the Ligurian capital and Northern Italy

The infrastructural upgrading of the Genoa junction, a strategic infrastructural connection for the new High Speed/High Capacity line, will ensure connecting the last mile between the Terzo Valico dei Giovi and the historical Port of Genoa, allowing direct link for freight trains departing and arriving from the port. And also allowing to separate traffic flows between regional trains and long-distance ones, with a consequent potential increase of the related offer. The Port of Genoa will become an access hub to the Rhine-Alpine Corridor, intercepting the commercial traffic that goes from the Far East to Europe, with the aim of saving about 5 days of navigation compared to the Northern Sea ports.

The Genoa railway junction project, just like the Terzo Valico one, will run mainly underground. It will involve building three natural tunnels: the new single-track San Tomaso (1,500 meters long); the New Cristoforo Colombo (1,409 meters long); and finally, the Polcevera Tunnel (2,167 meters long).

The project, together with Terzo Valico dei Giovi and the Campasso itinerary, is part of a 2019 joint project worth almost 6.9 billion euros. It intends to connect the port of Genoa with Northern Europe, making city transport more efficient and integrated, while also supporting the port’s development.

The Project in numbers

Total economic value

€ 6.9 billion

Employees at work


Latest milestone

On September 24, 2020, two intermediate milestones were reached: the demolition of the last diaphragm of the first barrel in the Serravalle tunnel (in Piedmont) and the completion of a part of the Valico tunnel, also in Piedmont. A double breakthrough celebrated in the municipality of Serravalle Scrivia (AL), in the presence of the institutions.