San Bernardino (road tunnel)

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The San Bernardino road tunnel is a road tunnel on the A13 motorway/motorroad in Switzerland completed in 1967 and replacing the San Bernardino Pass road.

It begins near the town of San Bernardino, Graubünden, and lasts for 7.7 km (4.8 miles).

A speed limit of 80 km/h (50 mph) is in force, and this is enforced by means of speed-check cameras.

This road tunnel is considerably less prone to traffic jams than the St. Gotthard Tunnel.

The road tunnel is part of the A13 as a single carriageway freeway and therefore passes through one hole without a central physical structure. As there is only one lane per direction, overtaking is not permitted.