It forms a southern bypass of the Szczecin metropolitan area and terminates at Rzęśnica interchange to the east of the city, from where it continues in an expressway standard as S3 towards Świnoujście and S6 towards Gdańsk.

Construction works proceeded up to Rummelsburg (Miastko) after the 1939 Invasion of Poland but finally discontinued in 1942 because of the impact of World War II.

Of the portion that ended up on Polish territory, only a 29.2 km (18.1 mi) stretch east from the Oder-Neisse line border with Germany was fully completed as a dual-carriageway autobahn (in 1936-1937), which became the A6 of today.

Further east, the road is no longer passable, but the earthworks left from the motorway construction stretch for about 100 km (62 mi) more and are easily visible on satellite photographs.

[2] Kilometrage starting point Border crossing is no longer operational since 21 December 2007, due to Poland signing Schengen Agreement Centrum means center