On 21.04.2015 Salini Impregilo SpA completed and handed over to the city of Rome the last section of line B1 of the Rome Metro stretching from the Conca d'Oro station to the Jonio station. The Jonio station, the new terminal, has a three-level covered car park with 250 parking spaces. The entire section comprises four stations, five shafts, 7,200 m of single tunnel track (6.70 m-diameter) and 1,100 m of double track tunnel (9.80 m-diameter). Click here, here and it/31 and for tunnelbuilder archive. Visit http://www.salini-impregilo.com. 17/15.