Insert point below line X distance at Y station

[Shablab]

I have contours of a site as well as an alignment with stationing.  Along the alignment, points were taken and show how deep we need to go in respect to existing grade.  What is the best way to show these points at the certain depth needed (X) taken at the station along the alignment (Y).  I was going to create a separate feature line along top of the alignment to follow stationing and edit the depth/points in the panorama to then project the feature line to the profile.  However, this seems tedious for the amount of profiles I have.