Utilize numerous automation mapping tools for extracting cross sections from various digital terrain sources including contours, TINs, DTMs, DEMs, LiDAR data, survey files, surveyed cross sections, etc.Automate HEC-RAS cross section cutting, water surface analysis, flood plain mapping, and all related modeling tasks.The Autodesk River & Flood Analysis module makes it easier than ever before to compute water surface profiles for modeling rivers, bridges, culverts, spillways, levees, floodplain and floodway delineations, stream diversions, channel improvements, and split flows. The Autodesk® River & Flood Analysis Module is a sophisticated river modeling software package that supported HEC-RAS within the Autodesk® Civil 3D® environment.