Use the "Contour Trace" tool. Click on each existing contour line (EL 100, EL 102, etc.). The software stores these as a 3D surface. Alternatively, import a CSV of survey points.
platform. Version 3.0 introduces significant upgrades, most notably the ability to input spot elevations and triangulate data for more precise topography mapping. PlanSwift.com Key Features and Capabilities planswift earthwork pro v3
If you currently own PlanSwift, adding the Earthwork Pro v3 module will likely pay for itself on your very first successful grading bid. Don't guess the dirt. Quantify it. Use the "Contour Trace" tool