New A4 Motorway stretch construction works, which includes the Marão tunnel, the largest in the Iberian Peninsula.
The Concession of the Marão Tunnel includes the design, construction, operation and maintenance of an extension of about 30 km of new motorway, which is the stretch of A4 between Amarante and Vila Real.
The new motorway includes a tunnel with two galleries of 5.6 kilometers in the Marão Mountain and 13 interconnections between them.
Construction Works Supervision
360 M€
2009 - 2012
Auto-Estrada do Marão, S.A.
TPF Consultores
Pengest