The intervention is located in the Basilicata region and falls within the municipalities of Filiano, Avigliano and Pietragalla, in the province of Potenza (PZ).
The planned works on the S.S. 658 ‘Potenza – Melfi’ concerns safety works on the road layout in occasional sections between km 0+000 and km 48+131. 1st Section B.
Sections 1 and 2 follow specific directions to extend manholes and optimize interventions. In section 3, the alignment allows for the repair of the existing wall, adapting an underpass only on the Potenza side.
In addition, the entrance ramp at the St. George junction has an incidence of 70 degrees to the main axis.