Importing ArcGIS shapefiles into AutoCAD Civil 3D

You cannot import Z values contained in an ESRI shape file directly. However, you can create a DWG file from the ESRI shape file that does contain the correct Z values. Follow these steps for workaround:

1. Open a new work session in AutoCAD Civil 3D using the Tool-based Geospatial workspace.
2. In command line type MAPIMPORT.
3. In the Import Location dialog box, select ESRI Shape from the Import Type drop-down menu and browse to the folder where the shape file you want to import is located. Click OK.Note: If you want to import portion of the data, or know the area you want to cover, set Spatial Filter to current display or Define Window, otherwise choose None
4. In the Import window, click in the Data field […].
5. In the Attribute Data dialog box, select Create Object Data and click on Select Fields
6. In the Object Data Mapping, select the fields that you want written to the object data table (i.e. Elevation).
7. Click OK to close all dialog boxes and import the file.
8. After the shape file has been imported, save and close the drawing.