Knowing that an underground asset travels between Point A and B is not the same as knowing where that asset is as it makes its way between those two points. True, the entry and exit manholes are clues, but the route of travel, its depth below grade, slope and turns, are only suggested by the manholes’ surface positions and elevations.Owners must keep track of each asset segment’s location for maintenance purposes and to avoid conflicts with new assets, proposed adjacent installations or nearby maintenance regardless of who is undertaking the work.These issues are concerns for sanitary and storm sewer infrastructure
