Asset Inspection and Assessment case study: sewer network assessment program Regional Municipality of York, OntarioThe Region of York (population 1,000,000) is located north of Toronto. The York-Durham Sanitary Trunk Sewer System (YDSS) includes approximately 150 km of large diameter trunk sewers and 1500 maintenance holes (MH) and specialty chambers. Andrews.engineer was retained in 2014 to [...]