REALIZATION SAFETY IMPLEMENTATION WORKS AND RESTORATION CAPABILITIES OF NORTH PORTAL ON HELICOIDAL TUNNEL OF VARZO, DOMODOSSOLA – ISELLE RAILWAY LINE (VB)

Executive engineering, execution of maintenance in the helicoidal tunnel of Varzo on Domodossola – Iselle linee and reactivation of the north entrance. Building owner Rete Ferroviaria Italiana S.p.A. Executing companies: Ceprini Costruzioni S.r.l. (gl) – G.C.F. Generale Costruzioni Ferroviarie S.p.A. (man). Start of works 19/8/2010, end of works 20/10/2014.