Civil 3D 2026 introduces powerful new features for BIM for infrastructure projects , mainly a new, faster 3D Model Viewer for real-time design review and a Drainage Analysis Technology Preview (powered by InfoDrainage) for unified, cloud-based storm water modeling within the software.   Other improvements include easier Dynamo automation for tasks related to drainage, partial surface referencing with data shortcuts, and good integration with Autodesk Construction Cloud. The t