Andorra Starts Northern Drilling on Rocafort Tunnel to Speed Sant Julià Bypass

The Government of Andorra has accelerated work on the Rocafort tunnel in Sant Julià de Lòria by deploying a second tunnelling machine at the northern portal, aiming to complete the €26 million bypass ahead of the July 2027 deadline.

Sant Julià de Lòria's leading consul, Cerni Cairat, described the development as a "very good piece of news" that will divert traffic from the parish centre, easing congestion for residents. Speaking after Territory and Urban Planning Minister Raül Ferré's Wednesday press conference, Cairat highlighted the national benefits, particularly for locals, as the project reduces noise, pollution and transit through the area.

Northern portal drilling started this week following three months of preparation, including terrain lowering by about 25 metres and a protective umbrella structure. Teams will now advance simultaneously from both ends, coordinating dynamite blasts to connect in the centre after the northern machine progresses roughly 10 metres. The southern portal machine began operations around mid-May.

The infrastructure spans nearly 400 metres total, with a 233-metre underground section linked by about 100-metre access roads at each end. It will provide three lanes on the CG-1 from the Fontaneda exit to the Aixovall junction—typically two southbound and one northbound, with the central lane reversible. Daily traffic averages 18,000 vehicles, rising to 25,000 during peak seasons and holidays.

Ferré noted the dual approach optimises progress, minimises environmental impact and advances timelines, with officials committed to an early finish. He emphasised safer, faster work bringing relief to neighbours through reduced traffic, cleaner air and better quality of life along the main southern access route.

The project generates 35,000 cubic metres of earth for the Rabassa landfill. To limit disturbances, operations halt by 10pm nightly, blasts occur mid-morning and remain at least 30 metres from portals. No August break is planned.

Launched in mid-October 2024 with €1.9 million for initial site stabilisation, hillside securing and Rocafort stream diversion, the bypass allows Sant Julià authorities about a year to redesign Avinguda Francesc Cairat with broader pavements, added greenery, improved lighting, pedestrian enhancements and balanced public spaces.