The KBK requires geotechnical investigations to be able to consider the results of these investigations as a basis for the tendering of these construction measures. The scope of these construction measures comprises reaches 2 to 10, each with a reach length of up to 60 m and canal depths of 2.00 to 5.00 m. Approximately 10 construction measures were estimated in the scope of works, depending on the only superficially foreseeable new construction needs in the sewer network. Furthermore, approximately 3 construction-accompanying geotechnical investigations were included in the scope of works.