Corridor Excavation Surface

I have a Corridor Model some 12 kms length with 4 differing Stratas (and some Conditional Excavations depending on Fill heights and underlying Strata)

Can I generate an overall Excavation Surface directly from the Corridor?
Seems a simple thing but I can’t find reference

I want to create this and then further add some localised Drain undercuts etc to create an overall excavation model for volumes

I believe what you’re asking could be accomplished by creating another material layer called Overall Excavation (or whatever makes sense) and assign all of your lowest instructions to that layer (instructions can be included on multiple layers so if they are already on a material layer it wont effect that) then create a new corridor surface using that overall excavation material layer and you should be all set.

Hey John,

I would agree with Wayne’s comment. If you create a new material layer for the excavation surface and then use the create corridor surface command to build that material layer you should get what you need. You can assign instructions to multiple material layers so they can remain in their original material layer but additionally added to that new material layer.

Let me know if that works for you.