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Giovanni XXIII Tunnel (also called Passante a Nord-Ovest) is a road tunnel in Rome, Italy, that is part of the Tangenziale Est road. It is about 2.9 km (1.8 mi) long.
Map of Galleria Giovanni XXIII, Roma, Italy
The twin tunnels form a dual carriageway running under the Mount Mario hill, connecting the northwest zone to northeast zone of Rome.
The tunnel was officially opened on 22 December 2004.
The tunnel is toll-free.
References
Giovanni XXIII Tunnel Wikipedia(Text) CC BY-SA