Civil 3D Combining Grading Areas...?

[JonathanEngr]

Hi! I'm a fairly adept AutoCAD user in the general functions of AutoCAD, but I'm new at the Civil 3D aspects. I am currently grading a small building site that is up on a small hill, and have used feature lines to grade that area. Now I need to run a road uphill to tie into the parking area I have created with the grading plan. Thus, I have two surfaces. The existing ground surface and the graded surface. How do I combine the two surfaces in order to have my road go up to the graded surface? At the moment, I choose the "existing ground" surface for my profile since the graded surface (from the building) doesn't extend to cover the entire area for my driveway. What is the best way to make this work? Thanks!!!!

[BIGAL]

the graded surface (from the building) doesn't extend to cover the entire area

 

First problem you nearly always 99% need a surface model to fully enclose anything you are doing even batter extents you will need to dummy up some surface points for your driveway then you should be able to grade up to the 2nd surface.

[JonathanEngr]

But is there a way to merge surfaces?? Seems like that would be an easier way to go. Or would it?

[BlackBox]

... is there a way to merge surfaces??

 

The only way I know of, from Toolspace Palette, Prospector tab, expand Surfaces node, create a new Surface, expand Definition node, right-click Edits node, select Paste Surface.

 

Cheers

[BIGAL]

Like Blackbox, surface1= existing, surface2= surface1+grading design, Surface3= surface2+driveway design

 

This way stuff something up can go back down the tree with your surfaces.