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Autodesk
Status For Review
Product InfoDrainage
Categories Hydraulics
Created by Guest
Created on Jul 9, 2026

Allow Underdrains to be Positioned Below the Base Level of Porous Paving

I would like to request the ability to model an underdrain located within stone material below the base level of a Porous Paving component, rather than being restricted to placement at or above the base level.

This reflects a common real-world permeable paving construction detail, where the collector pipe sits in a deeper trench or channel beneath the main storage layer.


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