If a proposed design intersects 3D linear elements, it can be helpful to see where those crossings occur in any profile views. Historically, displaying (and annotating) profile crossings was challenging. Now, using Civil 3D 2019.2 it’s much easier to dynamically view and label crossing elements in profile views.
To display crossing elements, simply select a profile view and choose “Add Crossings to Profile View” from the contextual ribbon. You can then select your desired entities. (Supported entities include: Feature Lines, Survey Figures, 3D Polylines, Alignments and Profiles.) Crossings are displayed using a marker and label style that will update automatically when changes are made to their respective linear elements.
If you are interested, I’ve created a quick video that walks through some possible workflows…
-Jeff