The extension of the commuter railway system (S-Bahn) in Leipzig, Germany will require the construction of an under-ground line crossing the downtown area of the city to tie the Bavarian Station in the South to the Main-Station in the North. The City-Tunnel-Leipzig is currently one of the largest infrastructure projects in Europe. This system extension will have a length of approximately five kilometers. 3.9 kilometers of that length are currently being constructed using either cut & cover construction or tunneling methods. The design and construction of this project currently is and will continue facing very significant challenging urban and demanding geotechnical conditions.
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