We have a re-occuring issue where elements from inroads survey import show up on prints, even after deleting.
I Created a dummy DGN, erased everything, compressed file, and those survey features are still hidden in the file, not graphically, but internally.
You can see them as used levels, as well as in the level usage properties....
HELP
It seems you are seeing temporary survey graphics. See the article below for more information and a suggested fix.
https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/6008/delete-temporary-survey-graphics
For more information about the Road and Site design tools, visit the Road and Site design WIKI at:
http://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki