Millau Viaduct

The Millau Viaduct is the tallest bridge in the world, with a structural height of 343 m above the Tarn valley and a total length of 2,460 m. Completed in 2004, it carries the A75 motorway across seven concrete piers and six central spans of 342 m, designed by structural engineer Michel Virlogeux and architect Norman Foster. Its cable-stayed deck floats elegantly above the landscape, supported by steel stays and massive pylons. The deck was assembled on land and incrementally launched across the valley, a feat of hydraulic engineering and precision construction. The bridge integrates high-performance materials—including reinforced concrete, prestressed steel, and corrosion-resistant cable sheathing—and was constructed using sliding shuttered pylons and temporary supports. It serves as a major transport link, reducing travel time and congestion in the region, and stands as a lasting example of large-scale civil engineering mastery.

There is no pedestrian access to the bridge deck, but visitors can experience the Viaduct via:

Guided tours: Operated by the bridge company, these tours depart from the visitor centre and include a viewing platform beneath the deck and optional access to a pylon interior. Tickets cost around €6 (adult), €4 (child), €14 (family); group rates start from €5.50/person. Tours last approximately 50 minutes and must be booked in advance.

Visitor centre: Free exhibition, film presentation, gift shop, café, restrooms, and parking. A short path leads to a hilltop viewpoint offering panoramic views of the structure.

Self-viewing: Easily accessible from A75 rest areas on both sides, the bridge can be seen from several scenic overlooks.

Additional experiences: Canoeing beneath the bridge and participating in special events like an annual marathon or bridge day are excellent options for architecture and adventure tourism.

Facilities are well-maintained year-round; weather may affect access to tours.