•
Channel Tunnel to the United Kingdom (railway through the
English Channel), at 50.5 km (31.4 mi) • International Tunnel de Bielsa-Aragnouet France – Spain: total length 3.07 km, diameter 7.5 m, 100 m minimum distance between one after another vehicles, asphalt lane 6 m wide, for vehicles high max 4.3 m, max speed 60 km/h (37 mi/h) •
Fréjus Rail Tunnel •
Fréjus Road Tunnel •
Mont Blanc Tunnel • Pont de l'Alma Tunnel (built under the River Sena – along its length, perpendicular to the length of the bridge, with reinforced concrete columns between the two traffic lanes, road: forbidden for pedestrians) •
Rove Tunnel, southern section of the Marseilles–Rhône Canal, 7.2 km (4.5 mi) long and 22 m (72 ft) wide, Bouches-du-Rhône dept., SE France; opened 1927. Starting near the village of Le Rove, it cuts through the Chaîne de l'Estaque at sea level. It is considered one of the greatest pieces of engineering since the Panama Canal. Longest canal tunnel in the world. •
Col de Tende Road Tunnel • ==Georgia==