Torrente Sori Viaduct, Highway viaduct in Sori, Italy.
Torrente Sori Viaduct is a reinforced-concrete motorway viaduct on the A12 near Sori, Liguria. It is 393 m long and rises 105 m above the Sori stream valley, with six spans of varying length: two of 100 m, two of 65 m and three access spans of 35 m. Its three main piers are 6 m wide and 14.55 m deep, and the single deck for both carriageways is 19.10 m wide.
Construction finished in 1966 as part of the expansion of Italy's motorway system during the post-war era. The structure represented advances in engineering technique needed to connect the Italian coast efficiently.
The viaduct is one of four on the Genoa–Rapallo stretch built with the Dywidag cantilever method, alongside the Veilino, Bisagno and Nervi viaducts. This was the first use of that system in Italy, chosen because the valley floor below was occupied by buildings. Its deck is 19.10 m wide and carries both carriageways.
The viaduct carries the A12 (E80) over the Sori torrent valley in the municipality of Sori, southeast of Genoa. It is a motorway structure with no pedestrian or stopping area, so it is seen in passing from the carriageway. The deck is 19.10 m wide and single for both carriageways.
The bridge showcases advanced construction techniques from the 1960s, particularly in applying prestressed concrete for such large spans. Historical photographs of the building process document an important moment in Italian infrastructure development.
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