Viaducs de la Barricade et des Bergères, Highway bridge network in Aix, France
The Barricade and Bergères viaducts span 420 meters across a deep valley, connecting sections of the A89 motorway near Clermont-Ferrand.
The construction of these viaducts took place between 1997 and 1999, with architects Charles Lavigne and Alain Montois leading the design process.
These viaducts represent French engineering excellence in transportation infrastructure, demonstrating advanced techniques in prestressed concrete construction.
The viaducts feature a box girder system supporting two lanes of traffic, with flexible pillars P2 and P3 ensuring structural stability.
The main span extends 150 meters, while specialized geotechnical studies revealed rock fractures that required adaptations in foundation methods.
Location: Aix
Length: 420 m
Longest Span: 150 m
GPS coordinates: 45.61320,2.44505
Latest update: June 23, 2025 09:55
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