The city of Gaggenau in the west of Baden-Württemberg operates an extensive and well-developed sewer network. As part of the self-inspection ordinance, rehabilitation planning and the acceptance of construction and rehabilitation measures, TV inspections are carried out on an ongoing basis in various parts of the town. This generates large amounts of data as well as associated video films and damage photos. Together with the city of Gaggenau, we have developed a concept to keep the data in BaSYS up-to-date and available and to be able to use it sustainably as a basis for construction tasks.