Construction Engineering and Management National Central University The highest bridge in the world Millau Viaduct Graduated Student Kai-Hiang Weng Graduate Institute of Construction Engineering and Management National Central University 2008.03.25

Introduction Reference Outline Description How tall ? Cost and resources Reference

Valley of the River Tarn Introduction Millau Viaduct Locale Millau, France Crosses Valley of the River Tarn Duration of works 38 months Longest span 342 m (1,122 ft) Total length 2,460 m (8,071 ft) Structural Type: Cable-stayed bridge

Introduction Description Construction began on October 2001 and was intended to take three years, but weather conditions put work on the bridge behind schedule. A revised schedule aimed for the bridge to be opened in January 2005. The viaduct was inaugurated by President Chirac on 14 December 2004 to open for traffic on 16 December, several weeks ahead of the revised schedule.

Introduction Description The Millau Viaduct consists of an eight-span steel roadway supported by seven concrete pylons. The roadway weighs 36,000 tons and is 2,460 m long, measuring 32 m wide by 4.2 m deep, making it the world's longest cable-stayed deck.

Introduction How tall ?? Very very very tall The tallest pier is 343m taller than Eiffel tower Very very very tall

Introduction Cost and resources The bridge's construction cost up to €394 million. The project required about 127,000 m³ of concrete, 19,000  metric tons of steel for the reinforced concrete, and 5,000  metric tons of pre-stressed steel for the cables and shrouds. The builder claims that the bridge's lifetime will be at least 120 years.

Reference http://www.eiffage.fr/?LANG=EN http://en.structurae.de The data used in this presentation from these reference http://www.en.wikipedia.org/

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