"The “twisted” bridge has spanned the Borne since the 14th century. It measures 84 meters for 6 arches. The spouts of the bridge that protect the piers are almost all pointed except for the last two which were redone following the flood of 1820. The bridge bears the nickname “twisted” since it is built on several different axes.
To guarantee its solidity, the builders of the Middle Ages ensured that the structure remained perpendicular to the current. The evolutions were made according to the displacement of the bed of the river.
This practice, already commonly used on other bridges such as that of Estrouilhas or that of Sumène, consists in lengthening the bridges in successive sections as the bed of the river moves by ensuring that the part construction of the structure is perpendicular to the course of the waters to better resist them.
The river was a necessary passage between the city of Le Puy and the outside. The “Tordu” or Roderie bridge allowed the inhabitants of Aiguilhe and Le Puy to reach their properties located on the slopes of Chosson by the shortest route. "