Some historians date the construction of the bridge to the 1st century A.D. during the reign of the emperor Trajan. The bridge crosses one of the widest stretches of the Tormes River and is located on rocky subsoil. It is 176 m long and 3.70 m wide, with 26 round arches and robust pillars. It forms part of the roman Silver Road that linked Merida and Astorga.