| Feature | Status | |--------|--------| | RAS Geometry import (from GIS) | ✅ Works | | Layer preprocessing (stream centerline, banks, etc.) | ✅ Works | | Terrain preprocessor (HEC-GeoRAS > RAS Geometry) | ✅ Works | | Export to HEC-RAS ( .g01 , .xns , etc.) | ✅ Works | | Import RAS results (water surface profiles) | ⚠️ Intermittent – use “Import RAS Data” carefully | | 2D flow area tools (GeoRAS 10.2+) | ✅ Works (basic features) |
Now you transform numbers into actionable maps.
HEC GeoRAS is an extension for ArcGIS that allows users to prepare data for hydraulic modeling using the HEC-RAS (Hydrologic Engineering Centers River Analysis System) software. The tool provides a comprehensive set of functions to create, edit, and analyze river and stream data, facilitating the development of accurate hydraulic models. hec georas for arcgis 10.8
While HEC-GeoRAS development has slowed in favor of HEC-RAS's built-in "RAS Mapper," it is still functional on ArcGIS 10.8 Esri Community
If the toolbar appears but buttons are greyed out, ensure you have set up a target map document with a defined coordinate system. 3. Pre-Processing Workflow: Preparing Data for HEC-RAS | Feature | Status | |--------|--------| | RAS
: You must have ArcMap 10.8.x installed with an Advanced license level, specifically enabling the 3D Analyst and Spatial Analyst extensions.
HEC‑GeoRAS (Hydrologic Engineering Center – Geographic River Analysis System) is a free ArcGIS extension developed by the of the U.S. Army Corps of Engineers. The extension offers a suite of procedures, tools, and utilities for processing geospatial data inside ArcGIS through a dedicated graphical user interface (GUI). Its primary functions are two‑fold: While HEC-GeoRAS development has slowed in favor of
This manual method requires more steps but offers greater control and often resolves automation issues encountered with large or complex datasets.
You have legacy models, your team is locked to ArcMap, and you only need basic geometric preprocessing.
