The first reference we have to the bridge dates from the 11th century, and it has been rebuilt a number of times over the years. It has seven arches and is characterized by its angular form, a result of the placing of the pillars over the natural stones of the river. It is 105 meters long and 30 meters high, including the defense tower.
In the medieval times, a county pagus was installed in the fortified tower, an obligatory toll paid to enter the town.