The north of the post-conquest oppidum is densely populated, but the houses there were of the domus style found throughout the Empire - courtyard dwellings where the slaves lived closest to the entrance and the family in the building opposite. To the south are some large courtyard homes built around AD 50. The whole oppidum was abandoned in AD 100. The existence of a staging post for the Imperial mail is known of from written sources, and also that it was located by the Vidourle and as a consequence was continually being rebuilt. An embankment was built to protect the settlement from flooding. The Imperial staging post itself was a complex containing two courtyards and two buildings. In the south gallery, the walls were decorated with paintings and a purse containing 43 denarii has also been found there. This building would have been for Imperial messengers and travelling officials. It was renovated and possibly changed its use in the fourth century AD, at a time when the rest of the site had been abandoned. A separate inn has been excavated. It contained a courtyard for the animals and carts and five guest rooms. Adjacent was a building with a bread oven. The inn remained substantially unchanged from 30 BC to AD 125. Nearby, and closer to the water were two further inns, parts of which date from AD 200 to 250. The settlement was substantial enough to have a bathhouse. Although most of it is now beneath a modern road, the heater chamber remains. The praefurnia took the heated air to the underfloor heating, hot water to the calidarium and steam to the laconicum. There was also a blacksmith's courtyard house with a forge specialising in carriage building. This dates from AD 25 to 175. Excavations are still continuing; the land is privately owned and not accessible to the public. The bridge was built across the Vidourle River with 11 arches. It was still usable in the Middle Ages, with all 11 arches intact, but a sketch by Anne Rulman in 1620 shows only four and then when painted by Gustave Courbet in 1857 only two arches were left. One of those was lost in the flooding of 1933, so only a single arch remains. The antiquity of the Pont Ambroix had never been disputed and it had been visited by Mérimée, who included it in the first edition of his Historical Monuments of France in 1840. The adjacent hill, the "Colline de Devès", was not investigated until the 1960s however.