The Pont de Pierre lies just east of the Arch of Augustus, spanning the Buthier where the Roman road from the alpine passes entered the city. It is one of several Roman bridges that once served Augusta Praetoria; this one has the distinction of remaining at least partially in use into the modern era, repaired and maintained through the medieval period when the Roman road network that justified its existence was long defunct.
The bridge is modest — a single arch over what is today a reduced stream channel — but it completes the Roman landscape of the city's eastern approach. Standing at the Arch of Augustus and looking east, the Pont de Pierre is visible in the middle distance, beyond the arch, with the mountains beyond it. The combination gives a reasonable impression of what the approach to a prosperous Roman alpine city would have looked like in the first century AD. The bridge is not an isolated monument but part of a sequence: the road, the bridge, the arch, the gate — all of it still present and still in roughly its original spatial relationship.