Brotonne Bridge, one of the most iconic stay cable bridges built in the 1970s, just turned 40. Inaugurated on July 9th, 1977, it is still a key infrastructure in the area used by around 10,000 vehicles per day. Its harp shape has become a symbol of the Normandy landscape.
The bridge was initiated by the Seine-Maritime Departmental Council and built by main contractor Campenon Bernard Cetra. Works carried out by Freyssinet (which was still called S.T.U.P. at the beginning of the project) include the post-tensioning of the concrete deck, bearings and stay cable system. Brotonne bridge was the very first stay cable bridge with a prestressed concrete deck.