The bridge connects the towns of Barbâtre, on the south of the island of Noirmoutier, to La Barre-de-Monts, on the north-Vendée mainland coast, and crosses the Strait of Fromentine.
[1] Built by the Dumez and Sacer companies under the project management and financial direction of the department, its first stone was laid on 12 May 1969 in Fromentine and it was opened to traffic on 7 July 1971, in order to provide a replacement for the passage du Gois (a submersible roadway at high tide).
In 1977, an increase in the toll rate led to demonstrations by island users, with traffic blockading the entrances to the bridge, raising of barricades and the intervention of a company of CRS in response.
These two prefabricated caissons are connected by a slab poured in place 0.80 m (2 ft 7 in) wide.
[6] The construction was carried out by assembling the segments using a launching gantry making it possible to pose the corbelling symmetrically on each side of the supports.