export revit topography file to ACAD civil for surface profiles

[arashdailami329306]

hi everybody,
i have a revit topography file and i want to export it to ACAD civil 3D to create some road profiles.
how can i do it?what format should i use for importing the revit topography to ACAD civil?
Can ACAD civil detect a revit topography as a surface for profile?

[mjfarrell]

From REVIT
Export
ADSK file of the surface
For use in
C3D


From Civil 3D
Extract Contours from the Surface
For use in REVIT