The Saint-Nazaire Bridge is a cable-stayed bridge spanning the Loire river and linking Saint-Nazaire on the north bank and Saint-Brevin-les-Pins on the south bank, in the department of Loire-Atlantique, Brittany, France.The bridge is crossed by the « Route bleue » (RD213).The cable-stayed metallic structure measures 720 meters, and, including the access viaducts, represents a total length of 3 356 meters.HistoryThe Saint-Nazaire Bridge was commissioned on October 18, 1975 after three years of construction. With its 404-meter central span, the 720-meter metal structure held, at the time of its construction, the world record length for a cable-stayed metallic bridge.In 1992, the Loire-Atlantique general council took over the Saint-Nazaire SAEM, the contractor for the creation and operation of the bridge. Access to the bridge became toll-free on October 1, 1994.The building was remitted to the Loire-Atlantique’s general council road heritage organization, which is responsible for its management and maintenance since August 1, 1995. Since its creation, trading between the north and south shores of the estuary have improved considerably.