Pont Tibère, Roman bridge in Sommières, France

The Pont Tibère is a Roman stone bridge over the Vidourle, originally about 190 metres long with 17 to 22 arches. Today seven arches remain visible in the riverbed, built of light beige or grey masonry with pointed cutwaters and a flat parapet carrying black lampposts and a central cross. The other arches are enclosed in the foundations and cellars of the houses of Sommières.

Built in the 1st century, the bridge was part of a Roman road linking Nîmes to Toulouse and served as a key transportation route. Over centuries, medieval urban growth surrounded and incorporated it into the town's structure.

Medieval builders incorporated arches into house foundations, creating a rare inhabited bridge where Roman stone and medieval walls merge into the city's fabric. This blend of layers gives the area its distinctive character today.

Seven arches remain visible in the riverbed; the others are built into the cellars and foundations of the houses along Marx Dormoy and place Jean-Jaurès. The bridge is the town's main axis, so cross it on foot to read the arches from both banks. After Vidourle floods, the lower arches can be submerged.

The bridge's name comes from popular tradition, not from any document: no written source from the period records who built it, and the attribution to Emperor Tiberius rests on legend alone. The structure is the longest surviving Roman bridge in France, at 190 metres.