The Pont Flavien is a Roman bridge across the River Touloubre in Saint-Chamas, Bouches-du-Rhône department, southern France. The single-arch crossing, which was built from limestone, was on a Roman road - the Via Julia Augusta - between Placentia, Italy and Arles. It is the only surviving example of a Roman bridge bounded by triumphal arches from the Augustan period, although similar bridges probably existed elsewhere, as indicated by portrayals on coins of the late 1st century BC.
The bridge probably replaced an earlier wooden structure on the same site. It measures 21.4 metres long by 6.2 metres wide. The two arches at either end, each standing 7 metres high with a single wide bay, are constructed of the same local stone as the bridge and are broader than they are tall. At the corners of the arches are fluted Corinthian pilasters at the top of which are carved eagles. Acanthus scrolls extend partway along the pediments, in the middle of which is an inscription that reads:
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