Preliminary Inspection

Due to the extent of buried infrastructure assets to be inspected and managed and the limited budgets available for inspection and rehabilitation, it is necessary to carry out preliminary assessments to establish priorities for this work. Identifying the areas most needing inspection can involve analyzing operational data (e.g. leaks, breaks, quality complaints in water mains or blockages, overflows, backups in sewer systems) but there are also preliminary inspection techniques that can be used that can be used to identify sections of piping that are in poor condition and hence that should have a priority for more detailed inspection. In addition to mirrors, examples of such preliminary inspection equipment are: