The Colle di Tenda road tunnel, a key Alpine freight and passenger route between northern Italy and southern France, will reopen to traffic on 27 June 2025, with single-lane alternating flow, TransportiItalia has reported.
Initially, vehicles will be able to pass in one direction at a time, regulated by traffic lights. The arrangement will remain in place until full dual-lane capacity is restored at an unspecified future date.
The tunnel connects Cuneo in Italy’s Piedmont region with Nice in France, and is particularly important for road freight movements between Liguria, north-west Italy and the Côte d’Azur. Its reopening ends years of closure due to construction delays, landslide damage, and complex planning issues, according to TransportiItalia.
