The tunnel was completed in 1985, and is 3,273 metres (10,738 ft) in length.
[3] This is part of the 'A1 Nordumfahrung' renovation plan covering the western entrance, the Gubrist Tunnel itself, and a further 10 km of motorway west of the tunnel.
The project will cost in total 1.55 billion Swiss francs.
[3] Besides the village Weiningen nearby fiercely opposed the plans and appealed to the Federal Court achieved for the tunnel to include a covering fence of 100m at the end against noise and smell.
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