A13 motorway

The A13 is a motorway, at times an Autostrasse , which runs from St. Margrethen in northeastern Switzerland through to Ascona in southern Switzerland, crossing the main chain of the Alps in the Grisons area. It is the southern half of European route E43.

The A13 started life as a road which was mainly an expressway, from the foggy beginnings at St. Margrethen through to Haag, opposite Liechtenstein. The motorway began at Haag and went through Reichenau. Then it was an expressway again until after Mesocco. The final kilometres linking it from Roveredo to the A2 motorway were an expressway. Today, the section from St. Margrethen through Haag has been thoroughly converted to a motorway. Due to the tough terrain, the transformation of the Graubünden section into a full motorway would be difficult.

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