France to Reopen RN320 Road to Andorra on Tuesday After Six Months of Construction Work

France will reopen the RN320 road towards Andorra on Tuesday morning, November 10, after six months of construction work near L'Hospitalet-près-l'Andorre, in the French department of Ariège.

The reopening will restore the usual road connection between France and Pas de la Casa, one of Andorra's main border towns, ending months of traffic diversions that have affected motorists since May.

Authorities in Ariège have announced that renovation work on the road's avalanche protection structures and associated equipment is nearing completion, allowing traffic to return to its normal route.

Since May, drivers travelling between France and Andorra have been required to follow a diversion via the RN22-09, commonly known as the Route des Couleuvres.

This alternative road will close on Monday evening as the winter season approaches, in line with its usual seasonal closure.

Overnight Road Closures Before the RN320 Reopens

Before traffic can return to normal, French authorities have scheduled one final overnight intervention between Monday, November 9, and Tuesday, November 10.

The works will take place from 8:30 p.m. until 6:00 a.m., requiring temporary closures of sections of the RN22 and RN320 roads.

According to the Ariège Prefecture, the restrictions will affect the stretch between the RN20 junction and the area known as La Croisade.

During this period, motorists travelling towards Pas de la Casa will need to use the Puymorens Tunnel and continue via the mountain pass from Porté-Puymorens, following the designated diversion.

Drivers are advised to plan their journeys carefully and follow temporary road signs throughout the overnight operation.

France–Andorra Road Connection Returns to Normal

The reopening of the RN320 will restore the usual connection between L'Hospitalet-près-l'Andorre and Pas de la Casa, following six months of restrictions and alternative routes.

The announcement comes just ahead of the winter tourism season, when road connections between France and Andorra become especially important for cross-border travel, shopping and ski tourism.

Pas de la Casa is one of the Principality's main commercial and winter tourism destinations, attracting visitors from neighbouring France throughout the year.

The construction work has focused on improving avalanche protection infrastructure, an important safety measure on mountain roads exposed to harsh winter weather.

According to information published by the French press, based on official communications from the Ariège Prefecture, the work is now in its final stages.

The reopening is expected to improve traffic conditions for motorists travelling between France and Andorra, particularly ahead of the busiest months of the ski season.

French Authorities Urge Drivers to Remain Cautious

France's South-West Interdepartmental Roads Directorate has reminded motorists to respect temporary road signs and speed restrictions near the construction site.

The authorities have stressed that following traffic regulations is essential to ensuring the safety of both drivers and workers completing the final operations.

Motorists should remain particularly vigilant during the overnight closures and while the road is being prepared for reopening.

Normal traffic on the RN320 towards Andorra is scheduled to resume on Tuesday morning, November 10, bringing an end to six months of diversions on this important cross-border route.