Alpine tunnel reaches 50km

Fifty kilometres of tunnel now run under the Alps. The boring machines have been cutting through rock 600 metres below the surface, between France and Italy, on what has become the longest cross-border rail project Europe has attempted. The Lyon-Turin base tunnel involves around 164 km of underground works, about €11 billion already committed to the cross-border section, and three decades of political argument (Xataka). At this depth, and with this much money already buried in Alpine rock, stopping becomes politically harder every year. That still does not prove the project makes sense.

The promise and the missing ledger

The EU backs Lyon-Turin through TEN-T, the Trans-European Transport Network. In plain terms, TEN-T treats Europe's main roads, railways, ports and inland routes as one continental system rather than 27 national ones. The idea is familiar to a country like Malta: infrastructure that looks local can carry wider European consequences. National governments often underinvest in cross-border links because the costs are paid at home while the benefits spread across several countries. The EU's dedicated transport fund exists for projects that pass this test of "European added value", meaning Europe as a whole gains more than any single state could justify paying for alone (CEF Regulation 2021/1153, CEF Transport).

The tunnel promises to cut the Lyon-Turin passenger journey from roughly 3 hours 20 minutes to about 2 hours, and to give freight a rail alternative to lorries crossing Alpine valleys (Xataka). What is missing is the ledger that should sit behind a project of this scale. No current public document brings together the total cost, the financing split between France, Italy and the EU, traffic forecasts, and carbon accounting.

French MPs Gabriel Amard and Jean-François Coulomme have asked the transport minister for detailed past and future financing accounts and have not received them (Le Progrès). Le Monde has reported tunnelling delays and damage to fragile water sources in Savoie (Le Monde). Project critics cite a broader figure closer to €16.1 billion once national access lines, inflation and past spending are included (Enviscope). The difference between €11 billion and €16.1 billion is not accounting trivia. It is the difference between asking what the tunnel costs and asking what the corridor costs.

The Brenner warning: a tunnel is not a freight route

The Brenner Base Tunnel between Austria and Italy is the nearest comparison. It promises to cut freight transit from about 105 minutes to 35 minutes (BBT SE). Yet in the first half of 2026, 1.26 million lorries crossed the Brenner route, up 3.57% year on year (neue.at). Lorry traffic is still growing while the tunnel is still being built.

A tunnel creates capacity. It does not, by itself, move freight from road to rail. For that to happen, rail has to beat the truck on price, speed and reliability. The access lines, terminals and signalling at both ends also have to work in practice, not just in project documents (VerkehrsRundschau). Germany's Brenner approach line alone carries an estimated €8.57 billion price tag plus a €7.6 billion risk buffer, with completion not expected until the early 2040s (schiene.de). Approach lines can cost nearly as much as the tunnel itself. If they are late, an expensive tunnel can sit between theoretical capacity and a corridor that still does not function.

Who bears the cost before Europe gets a benefit

Lyon-Turin sits on the Mediterranean Corridor, a TEN-T route running from southeastern Spain through France into Italy. Spanish exporters could eventually send goods by rail towards northern Italy. But Spain's own section is only 36% in service, according to the business coalition #QuieroCorredor (Europa Press). A tunnel under the Alps means little to a Valencia shipper if the track to the French border is not working.

The immediate costs fall on Alpine communities: noise, construction disruption and pressure on water sources, all arriving years before any wider European freight benefit (meinbezirk.at). This is the part of EU infrastructure politics that Malta should recognise. Brussels can frame a project as European, but the people living beside the works experience it first as local disruption. The European Court of Auditors has found that major EU transport projects often arrive late, cost more than promised, and carry less traffic than forecast (ECA).

Lyon-Turin may yet beat that pattern. But 50 km of tunnel is not a functioning corridor. The economic case still depends on access lines, competitive rail pricing and honest traffic forecasts. None of those has been proven. Sunk cost is not evidence; it is only the reason politicians find it harder to stop.