Twin tunnels required at German end at Rosstal (1.125 km) and Coschutz (2.355 km). March 1999.$140 million contract for 3.6 km section of motorway awarded to Walter Group includes 1.082 m-long Dolzschen and 2.33 km-long Coschutz twin-tube drill/blast tunnels and 234 m-long connecting viaduct which will provide access for second Coschutz face. Excavated volume nearly 1 million cu m. July 2000.
Award of engineering studies contract for 2 x 1.08 km Doelzschen tunnel and 2 x 2.353 Coschutz tunnel on A17 motorway in Saxony to Bung GmbH, Heidelberg. December 2000.