The engineer Silvano Zorzi designed a bridge with two identical portal arches placed side by side. Zorzi gave the prestressed concrete shapes a clean outline which confers the thin membrings a slender and elegant profile while minimizing the mass of the building.
This high-engineering work, located in a narrow crossing of the Arno River, was assigned to the Astaldi company, one of the most promising firms that stood out during the construction of the Autosole.
The use of the Innocenti staffolding, arranged like a folding fan, was also fundamental along with other innovative systems.