Concession for the design, construction, financing and operation of a new shadow toll road; ARA-A1, running from the N-II road between the towns of Villafranca de Ebro and Nuez de Ebro, to the N- 232 road in its link with the A-222 in Burgo de Ebro.
The motorway is 5.40 km long, the ground level fully projected in an embankment, bypassing the AP-2 motorway, the Ebro River and the Fuentes de Ebro irrigation canal.
The motorway has a total of 9 viaducts, 10 underpasses and 3 links with the N-II, with the AP-2 and N-232 and A-222.
The most unique structure is the overpass over the Ebro River which is implemented by two parallel viaducts measuring 400 m in length, each consisting of 10 cantilevers measuring 40 m in length, arranged by boards on I-joists beams with a compression slab with a maximum height of 15 metres. The foundation of abutments and piers was constructed with piles and is designed in such a way that allows future expansion to three lanes.
The project has been operational since the completion of its construction in 2008 and will be returned to the government in 2036.