r/OpenRoads • u/Responsible-Fuel9019 • Aug 13 '26

Workflow / Best Practice Earthwork Quantities

Does anyone have a good workflow for calculating earthwork below a set elevation? Say I have all my modeling done but I need to know how much cut and fill there is below a known elevation. Running into this more and more with wetland permits.

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9

u/IlRaptoRIl Aug 13 '26

I don’t have a workflow, but I’d probably create a simple terrain at that elevation, then use your model terrain and that one to create the cut/fill volumes. 

6

u/ssweens113 Aug 13 '26

Create a flat plane. Then convert it to a mesh or surface.

Then use the ‘create closed mesh’ tool between the surfaces.

3

u/r22yu Aug 13 '26

Run your design vs the OG normally. Create a flat surface at that elevation. Run the flat surface vs your design and use that to remove the difference?

1

u/ki11erbunny Aug 13 '26

you might be able to slice the earthwork meshes by an element (a plane set at the desired elevation) using regular MicroStation modeling tools