A subsurface lateral pipe is installed within a gravel-filled trench with a depth ranging from twelve to twenty-four inches below grade. The trench profile indicates a pipe bedded at the base of the excavation surrounded by granular backfill. A plan view of the lateral layout displays a central pipe flanked by porous backfill material. A callout bubble points to the gravel backfill envelope.
Members view this detail in full resolution, download the CAD files (SVG, PDF), and can adapt it in the built-in CAD editor — export DXF, DWG, or PDF.
Start membership