Expressway S3 (Poland)

Expressway S3
Droga ekspresowa S3
Route information
Part of E65
Length	404.7 km (251.5 mi) 470.6 km (292 mi) planned[1]
Major junctions
From	Świnoujście
Major intersections	merge with A6 east of Szczecin separation from A6 south of Szczecin A2 near Jordanowo A4 near Legnica
To	D11 border with Czech Republic
Location
Country	Poland
Regions	West Pomeranian Voivodeship Lubusz Voivodeship Lower Silesian Voivodeship
Major cities	Szczecin, Gorzów Wielkopolski, Zielona Góra, Legnica
Highway system
National roads in Poland Voivodeship roads
← S 2 → S 5

Expressway S3 or express road S3 (in Polish droga ekspresowa S3) is a Polish highway, which is planned to run from Świnoujście on the Baltic Sea through Szczecin, Gorzów Wielkopolski, Zielona Góra and Legnica, to the border with the Czech Republic, where it will connect to the planned D11 motorway. The total intended length is 470.6 km (292.4 mi), of which 404.7 km (251.5 mi) is open to traffic and 65.9 km (40.9 mi) is under construction as of March 2024.

The main section from Szczecin (A6) through Jordanowo (A2) to Legnica (A4) is completed. In was constructed from 2008 until 2021.

The sections from Legnica (A4) to the Czech border and from Świnoujście to Szczecin (A6) are partially finished and partially under construction, with planned completions in 2024.^[2]