Professional | ~4 hr.

Surface Modeling for Infrastructure Design

Course | Skill builder
Learn to create and work with surface objects in this focused course for civil engineers.


Knowing when to use the right tool for the job is key to graphical and data-rich civil drawings. Learn how to create surfaces from a variety of data points, including boundaries, contours, and elevations. Create existing ground surfaces, work with different surface build options and surface styles, apply surface labels, and add boundaries. Focus on detailed design for corridor surfaces, including cut and fill analysis, before you create feature lines, sites, and grading groups. You’ll wrap up by creating a finished ground surface.

After completing this course, you’ll be able to:

  • Understand surface objects and create surfaces from a variety of data.
  • Add breaklines to a surface.
  • Apply surface build options and surface styles.
  • Analyze surfaces.
  • Apply surface labels and boundaries.
  • Create data shortcuts from surfaces.
  • Create corridor surfaces.
  • Perform a cut and fill analysis.
  • Create and edit feature lines.
  • Create a site and grading group for a building pad and retention pond.
  • Calculate cut and fill volumes.
  • Create a finished ground surface from existing ground, corridor surfaces, and grading group surfaces.

Course modules

~2 min.
Getting started

Getting started

~1 hr. 10 min.
Creating an existing ground surface

Discover how surfaces in Civil 3D are used when establishing existing conditions in a civil project. Create a 3D representation of the ground as you create and modify surfaces.

~25 min.
Creating corridor surfaces

Civil 3D contains robust tools for designing corridors and corridor surfaces. See how to leverage surfaces from corridor models to display road grades and contours, analyze cut and fill volumes, and discover how you can use the surface volume tools for your designs and implement them for corridors.

~1 hr. 10 min.
Creating site grading and a finished ground surface

Learn about the relationships between sites, feature lines, and grading groups. Create feature lines to build grading groups then use those groups to model site features such as ponds and residential grading.

~45 min.
Course challenge

Course challenge

~20 min.
Final test

Final test

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