I am trying to export HEC-RAS to AutoCAD Civil 3d 2018.
I tried the file export GIS data with the water surface and cross section data checked.
The first thing I found out is that Civil 3d 2018 will only read an export from HECRAS 4.1
Using the Civil 3d insert import HECRAS, it only brings in the centerline and not the cross sections.
MAPIMPORT will not work at all.