Kappler Tunnel, B 31, Transitway through Freiburg   Kappler Tunnel, B 31, Transitway through Freiburg As part of the building of the new B 31 within the Freiburg city boundaries, the 4-lane road tunnel on the B 31 is being created by cut-and-cover....  

Katzenberg Tunnel   Katzenberg Tunnel The Deutsche Bahn AG is engaged in upgrading the so-called Rheintalbahn between Karlsruhe and Basle from a 2 to a continuous 4-track route. The route is part of the Trans-European...  

Klein-Winternheimer Tunnel   Klein-Winternheimer Tunnel The Klein-Winternheim Tunnel was built during 1868 to 70 for two-track railway traffic. However, it has only been used for single-track operation over the years. The tunnel...  

Klingenberg Dam Renovation Auxiliary Water/Flood Relief Tunnel   Klingenberg Dam Renovation Auxiliary Water/Flood Relief Tunnel After practically 100 years of service the Klingenberg Dam structures and facilities in the eastern Ore Mountains are desperately in...  

Köhlbrandtunnel   Köhlbrandtunnel The construction of a new incineration plant in Hamburg-Waltershof at the same time required a new remote-steam connection line below the Köhlbrandt, a side arm of the Elbe. In the...