This is the most important monument of its type known in the area of the ancient provincia Tarraconensis. Located on the Via Augusta, about 20 km north of Tarragona, it is a simple, plain arch with one span built of local stone ashlars. Eight fluted pilasters, topped with Corinthian capitals, support an entablature with an inscription referring to the restoration of the monument financed by Lucius Licinius Sura at the beginning of the 2nd century AD. The architectural features place its construction during the period of Augustus.