Aging pipes in underground networks

Underground networks for wastewater and drinking water are aging and effective asset management is required. This means quantifying the actual functionality and structural condition of the pipes, preferably using non-destructive methods. With this goal in mind, a group of companies, water authorities, municipalities, Deltares, Delft University of Technology, STOWA and RIONED joined forces in the Urban Drainage Knowledge Programme and set up an STW-funded research programme TISCA: Technology Innovation for Sewer Condition Assessment. A major aim of TISCA is to obtain information about hydraulic capacity and structural strength using non-invasive methods for existing infrastructure.