image/svg+xml image/svg+xml image/svg+xml 1 Planning and preparation 2 Excavating the pipe trench 3 Creating a load- bearing trench bottom 4 Creating the lower bedding layer 5 Connecting a lateral drain to a main sewer 6 Pipe handling and placement 7 Compacting the haunch zone 8 Backfilling the sides / covering the pipe 9 Primary backfill 10 Restoring the asphalt layer Start
