Italy has officially approved a $15.5 billion (€13.5 billion) plan to construct the world’s longest suspension bridge, connecting the mainland to the island of Sicily — a historic infrastructure move decades in the making.
The ambitious Strait of Messina Bridge project, first envisioned by the Romans and repeatedly proposed and canceled since the 1960s, has now reached its most advanced stage yet. It received final clearance from Italy’s interministerial committee overseeing strategic public investments. The government, led by Prime Minister Giorgia Meloni, is framing the bridge as a globally significant symbol of Italian engineering and ambition.
Transport Minister Matteo Salvini called the project “the biggest infrastructure project in the West,” projecting it will generate 120,000 jobs annually and provide a major economic boost to southern Italy. Preliminary work could begin as early as late September or October, pending approval from Italy’s court of audit. Construction is expected to start in 2026, with completion anticipated by 2032 or 2033.
Engineering Feat and NATO Implications
At nearly 3.7 kilometers (2.2 miles) long, with a suspended span of 3.3 kilometers, the bridge will surpass the current record-holder — Turkey’s Canakkale Bridge — by more than 1.2 kilometers. Designed to withstand strong winds and seismic activity, the bridge will carry three lanes of traffic in each direction and a double-track railway. It is expected to cut travel time across the strait from 100 minutes by ferry to just 10 minutes by car, while also saving trains over two hours in travel time.
Italy is also considering classifying the bridge as a dual-use (civilian and military) project to support its NATO defense spending goals. Framing it as “security-enhancing infrastructure,” the government argues that the bridge would form a strategic corridor for rapid military deployment to NATO’s southern flank.
However, this proposed classification has drawn criticism. Over 600 academics have signed an open letter warning that such military use would require more rigorous structural assessments and could turn the bridge into a military target.
Environmental and Anti-Mafia Safeguards
Environmental groups have raised concerns about the impact on migratory bird routes and the surrounding ecosystem. They argue that the required studies have yet to justify the project’s necessity or propose adequate environmental offsets.
There are also long-standing fears that the bridge could become a target for mafia infiltration — a problem that has plagued other major public works in Italy. To address this, the project will fall under the standard anti-mafia legislation that governs all large-scale infrastructure efforts. Salvini assured that stringent controls would be enforced throughout the supply chain, modeled after protocols used for the 2015 Milan Expo and the upcoming 2026 Milan-Cortina Winter Olympics.
Construction and Design
The contract to build the bridge has been awarded to a consortium led by Webuild, an Italian engineering group that originally won the bid in 2006 before the project was canceled. The bridge will use a modern suspension design similar to the Canakkale Bridge, featuring a wing-shaped deck structure that allows wind to pass through — reducing drag and increasing stability.
With political backing, economic ambitions, and national symbolism all tied into the project, the Strait of Messina Bridge represents a bold and controversial leap forward in Italy’s infrastructure history — one that will reshape the country’s geography, economy, and possibly its role within NATO.
