The KBK requires geotechnical investigations in order 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 consists of sections 2 to 10, with a section length of up to 60 m each and sewer depths of 2.00 to 5.00 m. In the technical specifications, approx. 10 construction measures were estimated, depending on the only superficially foreseeable need for new sewer construction in the sewer network. Furthermore, approx. 3 construction-accompanying geotechnical investigations were taken into account in the technical specifications.