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Civil 3d additional surface procedure

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 rod
(@rod)
Posts: 25
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Topic starter
 

I have a Civil 3D surface from a year ago. The engineer has already used it for design. I recently acquired more topo points because the project limits expanded. I uploaded the points into the drawing, but when I rebuild the surface to include the new topo, the original surface changes.

What is a good procedure for adding additional topo to a surface without changing the original?

Thank you

 
Posted : May 17, 2019 8:30 pm
 ken
(@ken)
Posts: 229
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Add a boundary under the surface.?ÿ There are a few types...

 
Posted : May 17, 2019 9:02 pm
(@geoff-ashworth)
Posts: 173
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Build a new surface with the new data. Then create a new surface and paste both surfaces into it.?ÿ

 
Posted : May 17, 2019 9:04 pm