 Complete the following phrase:  From 1863 to 1962, the two-level stone viaduc dAuteuil or viaduc du Point-du-Jour ran across the river at this point, carrying Petite Ceinture trains on its upper level and car traffic on its lower level. When car transport increased on the Boulevards of the Marshals, and since the arches of the existing structure were too low to be passed under by river traffic, it was decided to replace it. Construction began in 1963 under the architect Davy and the engineer Thenault, and the new structure was inaugurated on 1 September 1966. The present structure is named after General Juins victory at the 