Home Infrastructure Environmental SanitationManhole type 1 – sewers DescriptionManhole detail type 1; used in the wastewater collection system in urban planning and sewage networks. Format DWG File size 1.04 MB DOWNLOAD Related Entries Highway construction details Stairs plan Dynamic coarse filter and distribution box zip settler Sanitary drainage Drainage service improvement Water treatment plant Biological filter Detail of Gutters on Slopes Drinking water plans; quiver; lime fence Sewer type ii drop pit storm containment dam manhole Scupper detail on the road Septic tank drain calculation Water treatment plant module mailbox detail Storm runoff map Rain collector discharge drainage works Sewers Treatment plant 1200 inhabitants sludge hopper drain box drainage plane manhole detail Plane topography in irrigation canal compact watermaker share your appreciation