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Set the path to your original terrain data (DEM) and define your output directory.

The installation process is straightforward:

The version 10.8.0.3 release offers stable performance with ArcGIS Desktop 10.8, supporting workflows from pre-processing geometric data extraction through post-processing floodplain visualization. While the software landscape continues to evolve, HEC-GeoRAS for ArcGIS 10.8 remains a valuable tool for hydraulic professionals worldwide, demonstrated by successful applications in flood hazard assessments from Indonesia to the United States.

HEC-GeoRAS is an extension for ArcGIS designed to process geospatial data for use with the HEC-RAS hydraulic modeling system. It allows users to: Create a geometric schematic of a river system.