First off, everyone seems to do it different.
We ran into a lot of issues in plan production early on with xref'ing Civil 3D drawings. We had projects that had xrefs dragging surfaces to the plan sheets that we did not want. One project had (4) copies of the same surface xrefed and 3 of them were annotated in different drawings. The other big issue for speed was grabbing "base" drawings with multiple corridors.
The "basic" setup now is we do not xref any C3D working drawings. We Data shortcut in as much as possible and anything that is not C3D based goes into our Linework.dwg.
I have our layout in the attached PDF that shows how we organize our drawings and Data shortcuts.
I also attached how we organize our folders on the network. Under the project folder we have each section: Design, Survey, Environmental...
Then under Design we have a Civil3D folder with the data separated accordingly.
Bruce
Bruce Klug, P.E.
AutoCAD Expert Elite Alumni
AutoCAD Civil 3D Certified Professional
Civil 3D 2023.2.1
Win 10 Enterprise, 64-bit