Railway Connection Project between Évora and Elvas-Caia which included the project of 28 railway viaducts and bridges, 33 overpasses and respective interferences, 4 Technical Buildings and 20 GSM-R sites. The bridges and railway viaducts vary in length between 69 and 785m and sum a total length of 11 km. The structural solutions of the trays are in solid rib of prestressed reinforced concrete for spans up to 35m and prestressed reinforced concrete coffins for upper spans. It includes a bridge with a central span of 70m, to be executed by successive advances, and a bridge with central span with an arc of 140m span. It also includes an overpass on the A6 motorway, with a steel-concrete solution.