13.04.2017, Bottrop, North Rhine-Westphalia, Germany - Emscher conversion, new construction of the Emscher sewer AKE, final work on shaft 33 of the AKE double-strand tunnel, the area in which the Tuebbing TBM was installed, i.e. the first 70-80 metres, will be filled with pipes in the classic way, the ecological conversion of the Emscher system consists of the construction of a central sewerage treatment system in the Ruhr area, the construction of sewer channels and the renaturation of the Emscher and its tributaries. 00X170413D561CAROEX.JPG [MODEL RELEASE: NO, PROPERTY RELEASE: NO (c) caro images / Oberhaeuser, http://www.caro-images.com, [email protected] - In case of using the picture for any purpose, please contact the agency - the picture is subject to royalty!]