Cost of Slovakia's Višňové Tunnel Project Balloons by €200 Million, Arbitration Risk Looms

The price tag for completing Slovakia's long-troubled Višňové tunnel has swollen by at least €200 million above the original contract value, with hundreds of millions more potentially at stake through arbitration proceedings, raising the prospect of further government scrutiny of the project. The Višňové tunnel, part of the D1 motorway connecting Bratislava with eastern Slovakia, has become one of the country's most costly and protracted infrastructure disasters. Construction was halted years ago after the original contractor ran into serious financial difficulties, leaving a partially built tunnel and a legal and financial tangle that Slovak authorities have been struggling to resolve ever since. The project was eventually restarted under a new arrangement, but costs have continued to climb well beyond initial estimates. The latest cost overrun of €200 million pushes the total expenditure significantly higher than what was originally budgeted, and the threat of arbitration — a legal dispute resolution process that could compel Slovakia to pay additional compensation to contractors or other parties — could add hundreds of millions more to the final bill. The escalating costs are a significant concern for Slovak public finances and are expected to prompt further audits or parliamentary oversight of how the project has been managed.