What is the best way to start a site without having any Topo? All the tutorials assume you have data from a survey. We basically want to start a project with an image. Anyone have any experience with starting a project this way?
You will just manually place points and modify their elevations in order to produce the grade/topo. If the site is flat then just place four points creating a square area to represent your site.
Try using a Pad, and see if you can use it to calculate excavated volume.