[ Buchtipp von K. Heinz Duthel ] 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.

[ Info ] Duthel, H. : Passo del San Bernardino (2065 m). www.lulu.com, 2007 .