drainage structure removed
In some instances during a sewer project, an existing catch basin or manhole's existence is no longer needed or is too old to be relied on to function properly. In some situations, such a structure may not be in a location where 'abandonment' in place is not feasable or practical, and complete removal is necessary.
Old brick or block catch basins or manholes are typically smashed and broken down with a backhoe or excavator, then removed from the hole. In some cases the old manhole is too strong and large of a mass and must be dug around and removed in one large piece.
If a replacement structure is not taking the place of the old, and the old structure was under or near pavement, it will typically be required that the excavation be backfilled with 'premium' aggregate stone and compacted so future settlement will not occur.