Hi @cadmate_
There is not a way to do this out of the box. Essentially, you'd need a way to generate points of a specific Section (veritcal section), in plan view, along the sample line. From there you would then export the points - but this does not exist out of the box. It could be done in .NET or even perhaps Dynamo, but it would take a bit of effort.
Alternatively, perhaps Section Reports would get you what you need? This would be coming from the Corridor, assuming you have a corridor.


If you are running Sample Lines from surface data along (ie from just a few survey'd surfaces) then there is not a way to do this without custom development of some sort.
Perhaps a suggestion on the Civil 3D Idea Station would be beneficial.
https://forums.autodesk.com/t5/civil-3d-ideas/idb-p/31