Topographic plans from surveyors that use the survey module of Civil3D typically contain lots of feature lines (and survey figure lines). It would be more efficient to read feature lines directly in FME. Together with its properties (from property sets).
Reader support for Survey Figure Lines would also be nice.
In 2021.0 release, a feature line that was used to build a corridor in the Civil3D DWG is read as an alignment, but no properties are found, neither with AttributeExposer. For an ordinary feature line (not linked to a corridor) nothing is read by FME.