This contract (Vezia-Crespera Cable Trench) is part of a general project for the partial dismantling, the adjustment and related cable connections of the AET/FFS Manno - Crespera and AIL Manno - Crespera power lines.
In this case, the works carried out by the Cà del Caccia consortium were:
- boring an underground tunnel Vezia-Crespera of Ø 3.60 m and approximately 900 m in length
- excavation of an inclined connecting tunnel to the existing Crespera-Gemmo-P. Scairolo tunnel
- excavation of an inclined connecting tunnel with the AIL Vezia-Cornaredo tunnel
Complementing these works are activities such as the crossing of the nearby motorway using the micro tunnelling technique and the creation of an access to the open-air TBM trench.