Originally Posted by

**Will_Rust**
If you're importing cross sections into ICM, EACH VERTEX of your cross section (each chainage elevation) needs an XY. ISIS (unless its fully georeferenced) only has XY for the centroid of the cross section - which sounds like what you have. Its totally possible to get in into ICM with the data you have. You'll need to export the ISIS cross sections to CSV, and extrapolate your XYs from the center point to each chainage elevation (you can assume that the XSs are horizontal to do this easily, or work out their rotation based on the previous / next XS XY). the XY for cross section centroids may not be in the same file as your XS chainage elevation, so you will need to do some matching and indexing in excel.

import into ICM needs to be:

XS_NAME,X,Y,Z,Mannings

So essentially, listed XYZs, grouped by the Cross Section name! (hope that makes sense!)

Will