Corridor - Strip Top Soil Under Corridor

[Gavin_Jones]

Corridor Strata Surface

You have to make it as a subgrade using a surface instruction. It has to be 100% below Finished Grade so if it extends beyond the Finished Grade surface you need to extend the Finished Grade to include some of the existing surface (use surface instruction with node to node offsets to add to finished grade surface - I sent you an example project on how to do this earlier - I will record a video for you on this today Alan