Brenner Autobahn Eastern Alps; this favourable location was therefore suitable for building the first motorway crossing among the Alpine main chains. Unlike other higher passes across the Alps, the Brenner Pass remains open all-year round and through the winter months. Construction of the motorway began in 1959 and the "Brenner Autobahn", including the Bridge of Europe (Europe's highest motorway bridge then), was partially open in 1963. The A13 begins in the south of Innsbruck from the east-west motorway A12 Inntal Autobahn ("Inn Valley Motorway"), which links Bregenz in western Austria to Kufstein near the border of Bavaria in Germany. At above sea,
Tyrol E45. The dual carriageway from Merano to Bolzano (MeBo) ends in Bolzano South in the Brenner motorway. Important road section in Trentino, next to the Brenner motorway, is the SS 47 (Strada Statale 47), which connects via Sugana Valley Trento with Padova. A large part of this route is dual-lane and flows into the Brenner state road (SS 12). Due to the Alps, there are many mountain passes that connect valleys. The most important pass roads for transit trade are the Reschen Pass and Brenner Pass. Popular pass roads include the Stelvio Pass, Arlberg Pass, Karer Pass, Mendel Pass and