Creating Slab Drainage Systems

Use the Slab Drainage tool to design drainage systems for slabs that are regularly exposed to water, such as industrial floors, concrete pavements, and flat roofs. Creating drains and valleys affects slab geometry; the process creates slopes and ridges, and potentially changes the curb height. Most of these calculations are computed automatically, but user settings and the placement of drainage elements sometimes result in errors when the geometry created is impossible.

Mode	Description
Edit	Edits selected drains, drain valleys, slope valleys, and slope markers; for multiple selection, all selected objects must be of the same type
Create Drain	Places a new drain with related slope valleys
Connect Drains	Connects two existing drains with a drain valley and automatically deletes inappropriately oriented slope valleys
Create Valley	Adds a slope valley to an existing drain
Settings	Opens the Slab Drainage Settings dialog box; set defaults for drainage elements to be added to the selected slab