ABSTRACT
The route had military purpose and represented the main communication axis toward north-est. The Roman colony of Narnia (Narni), established in 299 BCE, acquired a strategic role inasmuch geographically positioned in a key area for the military control of the route. The Augustan Bridge of Narni represents one of the greatest transit infrastructure realized by the Romans. Mentioned in classical sources, partly collapsed on several occasions, the bridge has kept his strategic military role until the definitive collapse in 1053, being the obligatory transit from Rome to the North. Having used the laser scanning technology in other analysis experiences, it has been decided to use it also for the Augustan Bridge, in order to obtain more extensive metric data and recreate a tridimensional model of it. The survey has been carried out over two working days and in addition to the laser equipment it has been used the traditional topographic equipment too.
