Pont Cysyllte is a 17th-century road bridge crossing the River Dee near the village of Trevor, Wrexham County Borough, Wales. It lies 200 m west of Thomas Telford's Pontcysyllte Aqueduct.
The sandstone bridge is dated '1697', though it was substantially rebuilt during the 18th century, and only the south arch and part of the south pier are original. The bridge comprises three arches, with full-height triangular cutwaters between each arch, each topped by a pedestrian refuge. The older south arch has a span of 10.7 m and the north arches have spans of 14 metres and 14.2 metres.
The bridge has been regularly damaged by motor vehicles being, at its narrowest, only 1.83 metres feet wide. Vehicles are supposed to stop before crossing and give priority to any oncoming vehicle already on the bridge.
References:The Château de Foix dominates the town of Foix. An important tourist site, it is known as a centre of the Cathars. Built on an older 7th-century fortification, the castle is known from 987. In 1002, it was mentioned in the will of Roger I, Count of Carcassonne, who bequeathed the fortress to his youngest child, Bernard. In effect, the family ruling over the region were installed here which allowed them to control access to the upper Ariège valley and to keep surveillance from this strategic point over the lower land, protected behind impregnable walls.
In 1034, the castle became capital of the County of Foix and played a decisive role in medieval military history. During the two following centuries, the castle was home to Counts with shining personalities who became the soul of the Occitan resistance during the crusade against the Albigensians.