Gare d'Austerlitz
Line 10 steadily began to mold to its present configuration from then on. One objective stood to link "Porte d'Auteuil" to "Gare d'Austerlitz" so to have a more coherent east–west route. The extension from Jussieu to "Gare d'Austerlitz" is 1,027 metres long. Construction began in 1934, however it ran into a number of difficulties resulting from its proximity to the Seine and the railroad tracks of "Austerlitz-Gare d'Orsay" under which a part of a tunnel had to be used. Construction of the infrastructure was completed on 14 September 1938, and the extension was opened to the public on 12 July 1939.