AFAIK, not automatically. I believe this is a documented wish list item.
Rick
wrote in message news:5434223@discussion.autodesk.com...
Is it possible to show a pipe crossing at an inlet AND have the structure
masked as well?
Andy
SP3
Thanks,
Rick
coauthor Mastering Civil 3D 2012
I blog at http://simplycivil3d.wordpress.com