Properly Import a DWG file

[PoiPounder]

I don't know if I am just too naive or if the file was set up incorrectly from the surveyor, but I can't figure out how to import the boundary and elevation data into my new project properly. Attaching the file below. I have followed other posts on the import process, but keep having issues. Can anyone tell me if it's possible with this file? 

 

Everything seems to be under the label "0" for what I need. The perimeter boundary as well as the elevation data. Unsure how to correct this and import the proper way. I noticed that the jagged elevation lines are in one big block, unsure how to separate those out? I would really appreciate your help with this daunting endeavor.  

 

Using Chief 10

23-84 subd 7-2-24.dwg

Edited 3 hours ago by PoiPounder