"2"^^ . . . . "Excavation and rail installation complete; wiring and testing in progress" . . . "2016Z"^^ . "57104.0"^^ . "57017.0"^^ . "Gotthard Base Tunnel"@en . . . . "2016-06-05Z"^^ . "250.0"^^ . . "The Gotthard Base Tunnel (GBT) is a railway tunnel through the Alps in Switzerland expected to open on 2 June 2016. With a route length of 57 km (35.4 mi) and a total of 151.84 km (94.3 mi) of tunnels, shafts and passages, it will be the world's longest and deepest traffic tunnel and the first flat low-level route through the Alps.The project consists of two single-track tunnels connecting Erstfeld (Uri) with Bodio (Ticino) and passing below Sedrun (Graub\u00FCnden)."@en .