PRESS NOTE
WEBUILD: TWELFTH CAISSON OF NEW GENOA BREAKWATER IN PLACE
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At the end of August, work will begin on the construction of the largest caissons: 67 meters long, 35 meters wide and 33 meters high
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A Tronds Barge 33 will enter into operation, a semi-submersible barge capable of submerging up to 20 meters below the water's surface
GENOA, August 11, 2025 - Webuild has marked another milestone at the construction site of the New Genoa Breakwater with the positioning of the twelfth caisson on the seabed off the coast of Liguria, Italy. Commissioned by Western Ligurian Sea Port Authority, the breakwater is being built by the PerGenova Breakwater consortium led by Webuild.
At the end of August, work will begin on the construction of the largest caissons, with lengths of up to 67 meters, widths of 35 meters, and heights of 33 meters. Their construction will involve the use of a Tronds Barge 33, a semi-submersible barge 110 meters long and 45 meters wide. Its ability to submerge itself by up to 20 meters below the water's surface makes it easier to manage the placement of the caissons.
More than 450 people are involved in the project, both directly and indirectly. With the start of construction of larger caissons, even more jobs are expected to be created as the number of work shifts also increases.
Once completed, it will be 6.2 kilometres long and reach a depth of up to 50 metres - the deepest for a breakwater in Europe - making the port more accessible to the latest generation of ships whose lengths reach up to 400 metres. The structure will also increase the importance of the port's role in the Rhine-Alpine Corridor of the Trans-European Transport Network (TEN-T).
Built entirely offshore, the breakwater is slowly taking shape with the pouring of more than 2,200 tonnes of gravel onto the seabed and the construction of 41,000 columns underwater. The length of these columns side by side has reached 478,000 metres, more than half of the total length planned for the breakwater.
The New Genoa Breakwater is a strategic project to improve logistics in the country by combining innovation, environmental sustainability, and a shared vision. Together with the Terzo Valico dei Giovi-Genoa Junction One Project, which is also being built by Webuild, it will help create a modern and integrated infrastructure system capable of meeting the challenges of mobility and global trade.
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Webuild is a global leader in the construction of large, complex infrastructure projects, with a focus on sustainable mobility, hydropower, water treatment, and green buildings. A recognized leader in the water sector and active in about 50 countries, the Group employs approximately 95,000 people of over 125 nationalities. It boasts nearly 120 years of experience with over 3,700 completed projects. Its track record includes 13,648 kilometres of railways, 891 kilometres of metro lines, 82,577 kilometres of roads and highways, 1,022 kilometres of bridges and viaducts, 3,462 kilometres of tunnels, and 318 dams and hydropower plants. Among its most iconic projects are the expansion of the Panama Canal, the Long Beach International Gateway bridge in California (USA), the Second Bosphorus Bridge (Turkey), the Sydney Metro Northwest skytrain viaduct and bridge (Australia), the Kingdom Centre skyscraper in Riyadh (Saudi Arabia), and metro lines in cities such as Copenhagen, Paris, Rome, Milan, Naples, Doha, Thessaloniki, and Riyadh. Ongoing projects include the New Genoa Breakwater, the Brenner Base Tunnel, the Pedemontana Lombarda Highway, Metro di Roma's Line C, the Genoa-Milan and Naples-Bari high-speed/high-capacity railways, the Palermo-Catania-Messina high-capacity railway, the Snowy 2.0 hydropower scheme in Australian and the Trojena dams in Saudi Arabia. As of December 31, 2024, the Group registered total revenues for €12 billion. As of June 30, 2025, its total order backlog stands at approximately €59 billion, with over 90% of its construction backlog related to projects linked to the United Nations Sustainable Development Goals (SDGs). Listed on the Borsa Italiana stock exchange in Milan (WBD; WBD.MI; WBD:IM), it is member of the MIB ESG index of Italian companies with best ESG practices. Headquartered in Italy, it is subject to the management and coordination of Salini Costruttori S.p.A.
More information at https://www.webuildgroup.com
Contacts:
Francesca Romana Chiarano Senior Manager - Media Relation Tel. +39 02 444 22147
mail: f.chiarano@webuildgroup.com
Carmen Cecchini
Media Relation
Tel. +39 346 3019009
email: c.cecchini@webuildgroup.com
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Webuild S.p.A. published this content on August 20, 2025, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on August 20, 2025 at 13:45 UTC.
