As part of the redevelopment of Herrenberger Straße in Böblingen, the combined sewer will be extended to a length of 371 metres. The project was tendered as a Community measure with Stadtwerke Böblingen GmbH und Co. KG and Netze BW GmbH as well as Tiefbauamt Böblingen. Safeguarding the very diverse interests of the parties involved presents an interesting challenge, in addition to the tense traffic situation in Böblingen’s city centre.