This page describes the new feature improvements for InfoDrainage™ version 2026.3.
Please note that this new version also includes various bug fixes that are described in detail in the Release Notes.
InfoDrainage is now available through Autodesk channels - please see the Installation Guide for more details on which version you are accessing.
InfoDrainage 2026.3 introduces Composite Curve Number weighted average calculations to report outputs. This provides clearer insight into catchment runoff characteristics, helping users validate hydrological assumptions and demonstrate compliance more effectively.
Integration with Civil 3D has been improved in InfoDrainage 2026.3, allowing custom parts to be mapped directly to their corresponding InfoDrainage components. This streamlines the exchange of designs between the two platforms and ensures that detailed parts lists and model elements remain aligned throughout the design process.