is an

autobahn The (; German plural ) is the federal controlled-access highway system in Germany. The official German term is (abbreviated ''BAB''), which translates as 'federal motorway'. The literal meaning of the word is 'Federal Auto(mobile) Track'. ...

Germany Germany, officially the Federal Republic of Germany (FRG),, is a country in Central Europe. It is the most populous member state of the European Union. Germany lies between the Baltic and North Sea to the north and the Alps to the sou ...

, connecting

Saarlouis Saarlouis (; french: link=no, Sarrelouis, ; formerly Sarre-Libre and Saarlautern) is a town in Saarland, Germany, capital of the district of Saarlouis. In 2020, the town had a population of 34,409. Saarlouis, as the name implies, is located on t ...

with

Saarbrücken Saarbrücken (; french: link=no, Sarrebruck ; Rhine Franconian: ''Saarbrigge'' ; lb, Saarbrécken ; lat, Saravipons, lit=The Bridge(s) across the Saar river) is the capital and largest city of the state of Saarland, Germany. Saarbrücken is ...

. Together with the BAB8, it serves as part of the connection between

Luxembourg Luxembourg ( ; lb, Lëtzebuerg ; french: link=no, Luxembourg; german: link=no, Luxemburg), officially the Grand Duchy of Luxembourg, ; french: link=no, Grand-Duché de Luxembourg ; german: link=no, Großherzogtum Luxemburg is a small land ...

and Germany. As the major part of the BAB 620 is alongside the river Saar, one section in Saarbrücken, the so-called "Stadtautobahn" is subject to

flooding A flood is an overflow of water ( or rarely other fluids) that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide Tides are the rise and fall of sea levels caus ...

several times a year. As a joke, locals call it "Bundesschifffahrtsstrasse" (Federal water lane) and "Nebenfluss der Saar mit 13 Buchstaben" (tributary of the Saar with 13 letters) because of that. A tunnel is being discussed to circumvent that problem.

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620 __NOTOC__ Year 620 ( DCXX) was a leap year starting on Tuesday (link will display the full calendar) of the Julian calendar. The denomination 620 for this year has been used since the early medieval period, when the Anno Domini calendar era ...

A620 {{Germany-road-stub