The core element of the project is the twin-tube rail tunnel which passes directly under the city area of Rastatt and will be bored mechanically with a hydro shield TBM over a length of around 3.8km. The contract also includes the trough sections to the south and north as well as a supply shaft and an operational building.

"As a traditional company from the state of Baden-Württemberg, we are proud to play a major role as technical leader in another trail-blazing inner-city rail construction project," underlines Edgar Schömig, Director of Ed. Züblin AG, in view of the new large contract.

"We are very pleased that, with this project, we will be building an important part of Deutsche Bahn AG’s main north-south railway route. Our experts with their expertise in tunnel boring machines are thus once again involved in the upgrading of modern, sustainable transportation infrastructure in Germany," says Wilfried Rammler, General Manager of HOCHTIEF Infrastructure GmbH.

Work will start on the project in November 2014 and conclude in mid-2018.