A1VAR highway Milan-Naples Variante di Valico

Tunnelling

Within the context of general improvements to the A1 Milan-Naples highway, the Valico Variant has a considerable strategic significance for travel between the North and South of Italy along the Apennine section between Emilia-Romagna and Tuscany regions

Project Data

Country: Italy
Location within country: Tuscany
Name of Client: Autostrade  per l’Italia

Services
  • Design
  • Work Supervision
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Project Introduction
Within the context of general improvements to the A1 Milan-Naples highway, the A1VAR Variante di Valico  has a considerable strategic significance for travel between the North and South of Italy along the Apennine section between Emilia-Romagna and Tuscany regions.
The Valico Variant is nearly 63 km long. Thanks to the addition of new lanes in each direction and the construction of new stretches, it will greatly improve driving conditions and reduce travel time between Bologna and Florence, thus providing comfortable and safe journeys to those travelling for both leisure and work.
Spea designed and is supervising the construction works of the entire section.
In particular, tunnels with length over  2000 m , many of which are natural tunnels, represent the 50 % of the total length of the project. They have been implemented ​​with  traditional technique or mechanized excavation (Tunnel boring Machine). Below is the list of tunnels and their characteristics:

  • Monte Mario Tunnel:  2.2 km,
  • Allocco Tunnel:  1.7 km
  • Vado Tunnel: 1.15 Km
  • Campolungo Tunnel:250 m
  •  La Quercia Tunnel: 330 m
  • Rioveggio 1  Tunnel: 350 m
  • Grizzana Tunnel: 2.3 km
  • Val di Sambro Tunnel: 3.8 km
  • Sparvo Tunnel: 2.5 Km
  • Poggio Civitella Tunnel: 320 m
  • Base Tunnel: 8.7 km
  • Buttoli Tunnel:525 m
  • Largniano Tunnel: 550 m
  • Puliana Tunnel: 1.3 km
  • Manganaccia Alteta Tunnel: 2.2 km