Home Infrastructure Environmental Sanitation Manhole Manhole Description Save Details of different manholes 1:20 scale. Format DWG File size 77.29 KB DOWNLOAD DWG share your appreciation Related Posts Simple inspection chamber Sewer pumping stations sludge thickener Processing facilities storm drain grate water treatment plant Culvert for rural roads - reinforced masonry of l:1.00m and h:1.50m Processing facilities storm drain - gullet Plans, sections and facades of the buildings that make up a treatment plant sewerage plan type a camera Absorption well for biodigester effluent – autocad Gallery-type intake structure Filter house str water supply Pumping well settler Simple culverts concrete pipes Sewer