D5 motorway () is a highway in the Czech Republic. It runs from Prague through Plzeà  into Germany. D5 is long; a bypass of Plzeà  includes the ValÃÂk Tunnel and the bridge over the River ÃÂhlava.
From the Rozvadov-Waidhaus border crossing, the D5 continues as the A6, West, to the border with France. The D5 is part of European route E50. All of D5 is the Czech part of Via Carolina; the motorway from Nuremberg to Prague.
Construction of the D5 began in 1976, with the first 5.8 km long segment opening in 1982. In 1985, another part, to Beroun was opened. The of the planned was already in use in 1989 from Prague to BavorynÃÂ.
The bypass Plzeà Â, in planning since 1988, faced various challenges. In 1991, the bypass' northern variant was changed to the southern variant that was supposed to use deep notch through the hill of ValÃÂk. This started court proceedings that lasted until November 2001, and the construction of the bypass including the tunnel under the hill ValÃÂk began after the disputes concluded. The last remaining long section around Plzeà Â, including the ValÃÂk tunnel opened on 6 October 2006, and is controlled by a Reliance SCADA system.
This was the last part of the motorway to be constructed as the rest from Plzeà  to the Rozvadov-Waidhaus border crossing was already in use since 1997. The final part was opened on 6 October 2006.
The section between Prague and Beroun is planned to be widened to three lanes in each direction.
Content in this edit is translated from the existing Czech Wikipedia article at ; see its history for attribution.