The Valiano Bridge is located in a decentralized and lower position compared to the parish church, and it can be reached by taking a path that branches off from the main road of San Martino. Despite the fact that the arch is almost completely enveloped by vegetation, it is possible to recognize its 'donkey-back' type: slightly higher in the center than behind, supported by large stone blocks. These rocks, partly emerging from the water, probably constituted a natural predisposition for the construction of the structure, in a stretch where the riverbed allowed a comfortable access. What remains of the structure reveals a light of moderate dimensions and a rise of a few meters above the water level; certainly it was provided with masonry backs, taken away by an exceptional flood of Valiano towards the end of the thirties of the last century.
For a long time it has not been possibile to pass through, but it has a very different past, witnessed by the remains of a building still clearly visible, which, according to the Lorenese cadastral map, corresponded to a productive nucleus, consisting of a house, mill, furnace, and oven, not far from the ancient San Martino Parish Church. It was a pedestrian crossing, until the post-war period. Then, with the abandonment of the countryside by farmers who had until then been responsible for the maintenance of the land, the cleaning of the woods, and the care of the connected infrastructure, it fell into disuse.