The purpose of the contract is to rebuild the arches of the Pont des Trous bridge in Tournai according to the conditions imposed on the urban planning permit, namely to respect the heritage and technical constraints in order to free a clearance template 12.5 m wide and 7.00 m high; maintaining the medieval character of the bridge; keeping the width of the structure identical and the upper level of the corridor; recovery of original materials; smooth guide consisting of a straight section of 25 m on both sides of the bridge.

Construction of the arches of the Hole Bridges respecting the conditions of the permit, respecting the heritage and technical constraints reflected in the submission plans attached to the file; placement of guide rails; various works.