At present, the only significant section of S6 that has been built is the Obwodnica Trójmiejska (Tricity Bypass) from Gdańsk to Gdynia which is 38.6 km (24.0 mi) long. Also a part of S6 is 16.3 km (10.1 mi) bypass of Słupsk that was completed in October, 2010. The bypass of Nowogard, was completed in December, 2011
In July, 2010 the route between Goleniów and Słupsk was finalized - it will be about 180 km (110 mi) long, and pass just south of Kołobrzeg and then north of Koszalin. The road will be dual carriageway, with 27 interchanges and 130 viaducts, with about 20% of it overlapping the current route of National Road 6 (DK6). Due to doubts about financing construction was not expected to start before 2020. but later the schedule was accelerated. The tenders for design-build contracts on the section between Goleniów and Koszalin were announced in August, 2014, with expected completion around 2018. The exact route of S6 between Słupsk and Gdańsk has not yet been determined.