The highest point of the road running along the bridge is not placed in its centre, and the ascent and descent are not the same length. The peculiar bridge outline, whose asymmetry is similar to the impressive Devil´s Bridge in Borgo a Mozzano, is due to the fact that the two stream banks are not level and that the bridge follows the line of the road it was conceived for: the old road from Loppia to Filecchio.
Supported by a round-headed arch, the sandstone bridge was built in the 14th century by local masons and underwent reconstruction work in the 18th century. This work was uncovered by the research study of Antonio Nardini of the section of Barga of the Istituto Storico Lucchese (Institute for Historical Research of Lucca).
Source: Lucca and its lands / www.luccapro.sns.it