The Viaduc de Millau in southern France delivers a thrilling drive, with mist and fog often making it appear as if vehicles glide through the clouds. This multispan cable-stayed bridge spans the Tarn gorge west of Millau in the Aveyron department of Occitanie.
Dimensions and Record-Breaking Height
Engineers completed the bridge in 2004 after three years of construction. It extends over 8,000 feet and supports four lanes of the A75 Autoroute nearly 900 feet above the gorge floor. The tallest pylon measures 343 meters, securing its status as the world’s highest bridge deck for nearly two decades.
China’s Changtai Yangtze River Bridge recently overtook it, opening in September 2025 and rising about seven meters higher.
Design, Cost, and Financing
French structural engineer Michel Virlogeux and British architect Norman Foster, renowned for London’s Gherkin, spearheaded the design. The project cost around €394 million, or £271.9 million at 2004 exchange rates. Eiffage funded construction and manages tolls until 2080, with a clause allowing government takeover if revenues hit specified levels early.
Engineering Achievement and Visitor Acclaim
The viaduct received the Outstanding Structure Award from the International Association for Bridge and Structural Engineering in 2006. Local weather conditions enhance its dramatic “bridge above the clouds” nickname.
Visitors praise its majesty. One shares, “It isn’t just a bridge, it’s a thing of complete wonder. You’ll be absolutely gobsmacked by the sheer size of the thing.”
Another calls it “an absolutely superb place! The viaduct and the surrounding landscape are so beautiful that you feel like you are part of a painting or drawing! It is truly a work of engineering of the highest level.”
A third recommends, “What an amazing viaduct. It is impressive and beautiful. I would recommend a tour as you get to places that you do not have access to otherwise, and it is worth the view at the end. Different languages are available and our guide was able to answer our questions. After the tour, drive over the viaduct you can then drive around to travel under it. It is awesome.”
