The sub-structure consists of a hollow box and steel brackets in which benches with wooden seats are integrated on the west side of the arch. It is elegant, light and links large areas. Striking frames made of laminated wood beams support the roof and lighting, direct to the eye, ennobling the bridge as a new landmark.
The spacing and the substructure changes its cross-section, accentuating the character of the bridge depending on the situation whether one is entering, ascending stairs, walking, waiting, sitting, watching or exiting.
The bridge is a singular construction, its arched course ensures that its ramp gently touches the new promenade on Place Giffard-Lagenvin and the park. Three lifts and stairs create a direct, obstacle-free and bicycle-friendly connection with the station and hotel, as well as with the platforms of the trains to Paris and Nantes.