Switzerland

Redeveloping the Gubris Tunnel

The 3.3 km long Gubris Tunnel is located in the Zurich North Bypass (A1/A4 North Ring) between the municipalities of Weiningen and Regensdorf. The road tunnel, which opened in 1985, has 2 directionally separate bores each with 2 lanes. Both bores are linked to one another by means of 12 cross-passages set 300 m apart.

The ventilation system, power supply, lighting, the signalling, communications and monitoring systems are being renewed in the tunnel at a cost of 75 m. CHF (60 m. euros). The concept foresees traffic being affected as little as possible. Up to 114,000 vehicles per day pass...

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