Hec Georas For Arcgis 10.8 [verified]

Technically, official support from the USACE Hydrologic Engineering Center (HEC) for GeoRAS ended after version 10.2. However, later versions have been made available via the Esri FTP site to support subsequent ArcGIS Desktop releases:

As Esri moves toward ArcGIS Pro, HEC-GeoRAS is being phased out in favor of (built directly into HEC-RAS) and the HEC-RAS Geometric Tools in ArcGIS Pro. hec georas for arcgis 10.8

: Streamlines the creation of river centerlines, bank lines, flow paths, and cross-sections from terrain data (TIN or DEM) to export a geometric import file for HEC-RAS. Post-Processing hec georas for arcgis 10.8