Let's walk through a typical road widening project using Civil 3D 2023’s new features:

The "Collaboration for Civil 3D" module (formerly part of BIM 360 Design) is now more stable. Real-time clash detection between a pipe network designed in the cloud and a corridor modeled locally is seamless.

Do not blindly upgrade. Civil 3D 2023 is powerful, but demanding. Here are the recommended specifications (not minimum) for a production environment:

A major addition is the Grading Optimization tool, now more integrated. It uses computational design to automatically adjust grading elements (feature lines, grading groups) to meet site constraints—minimizing earthwork, balancing cut/fill, or achieving target elevations. This reduces manual trial-and-error.

While stable, early adopters reported several specific bugs that were largely addressed in updates (e.g., Civil 3D 2023.2 Update):

civil 3d 2023