The goal of the intervention is to widen to the third lane the A14 Bologna-Bari-Taranto highway between Ancona north, at the chainage 213+740km and Ancona south at the chainage 230+973km, for a total length of 17km including the Sappanico and Montedomini highway tunnels.
The main challenge of the project was to keep the highway in operation with the minimum disruption during construction.
Innovative methods have been developed to allow efficient tunnel construction while ensuring the safest environment for workers and public.