Home Infrastructure Environmental Sanitation manhole box manhole box Description Save Rcc sewer ace Format DWG File size 123.82 KB DOWNLOAD DWG share your appreciation Related Posts Wastewater treatment compact top view wet well Canal Top view profile sanitary drains Details drainage facilities Thomas Uasb (upflow anaerobic reactor) Storm sewer construction details Draft treatment plant Manhole sewer plane sewage treatment plant separator tank sand trap sand trap Two-eye sewer with pvc pipe sewage treatment plant Septic chamber absorption well storm drain Sewers