Hi, I have succesfully created a Existing topo surface by importing CAD Spline. During the process however, I managed to miss the fact an existing retaining wall runs across this ponding basin with the other half of it filled with earth. The problem is I do not know how best to go by fixing the generated existing topo in Revit to show earth on the filled portion. I created a seperate topo in the filled ponding portion and tried to 'Merge Surfaces' but the fill topo keeps disappearing.
Anybody know a better way.
Thanks