This Architectural Drawing is AutoCAD 2d drawing of Typical Section of sewage system in AutoCAD, dwg file. Precast asbestos cement concrete pipes reinforced with steel are mostly used now-a-days. Sometimes steel pipes with lining of cement concrete on inside and outside are used. Cast iron pipes are also used on large scale for branch sewers. Sewerage (or sewage system) is the infrastructure that conveys sewage or surface runoff (stormwater, meltwater, rainwater) using sewers. It encompasses components such as receiving drains, manholes, pumping stations, storm overflows, and screening chambers of the combined sewer or sanitary sewer.