Metro Line 10 in Barcelona is one of the two branches of the 47.8 km long Line 9. The south branch connects the “Zona Franca” – the intermodal logistics platform of the Port of Barcelona – to Line 9. The final 4 km of this branch, of which 2.8 km are already built and partly operational, run above ground on viaducts. The remaining segment will span the old Llobregat River bed to reach the “Pratenc” Industrial Park. Upon completion, Line 9 will be the longest automated metro line in Europe.
Pedelta designed the structures for this project, which include a 396 m long extradosed bridge over the old riverbed with a longest span of 67 m. The rest of the line will run on a viaduct, designed as a sequence of 33 m long simply-supported precast beams to minimize interferences with existing utilities and the heavy traffic in the industrial area. Economy was a major requirement governing the design that was combined with the aesthetic criteria defined by the architects of the Municipality of Barcelona.