Projects: Tunnels TBM

lots 6-7 of the Variante di Valico As tall as a 5-storey building, “Martina” is the world’s largest tunnel milling machine used by Toto Costruzioni Generali to dig the “Sparvo” tunnel, the most demanding of the Variante di Valico, consisting of two carriageways for a total length of about 5 km (2,431m for the northbound barrel;

S.S. 47 Valsugana (TN) Section: Ponte Alto – Trento Nord (Martignano Alternate Route) Works to widen the Valsugana National Road (S.S.47) Client: Provincia Autonoma di Trento Contract amount: € 111,220,567 The project involves the building of an alternate route to the existing S.S. 47 through the construction of a twin-tube tunnel, with each tube measuring