Variante di Valico

Variante di Valico (blu). A1 (green)

Variante di Valico (number A1 var) is a deviation of the Italian A1 motorway opened to traffic on 23 December 2015, between La Quercia and Aglio in central Italy. The entire project covers a length of 62.5 km, of which 37 km involved adding a third lane on each side of the existing A1 and 25 km the construction of the new section, most of which consists of viaducts and tunnel, the longest tunnel being 8.7 km in length. The new section runs parallel to the central part of the Bologna-Florence motorway A1. The earlier motorway remains open, providing an alternative route. The A1 splits up north of the Appennini, the two sections rejoining south of the mountains.

The twin-bore Sparvo Tunnel or 'Galleria di Sparvo' was completed in July 2013.

Schematics and Photos of the works are available on SkyscraperCity and YouTube^{[1] [2]}

Recent Bing Maps Aerial images include the following: see details reference description below.

^{[3] [4] [5] [6] [7]}

References

1. Video of "Martina" The Worlds Largest Earth Pressure Balance TBM at the time. Superseded on Highway 99 in Alaska in 2013
2. More on The Tunnel Sections.
3. (Bing)Val Di Sambro Tunnel Northern Entrance (Both Bores complete)
4. (Bing)Val Di Sambro Tunnel Southern Entrance (neither Bore complete)
5. (Bing)Scarvo Tunnel Northern Entrance (Both Bores complete) (Note complete short viaduct and another small tunnel to north)
6. (Bing)Scarvo Tunnel Southern Entrance One Bore complete pre July 2013
7. (Bing)2 more short tunnels and connecting viaduct to south of main tunnels