Hec Georas For Arcgis 108 Upd ((link))

Official support from the Hydrologic Engineering Center (HEC) technically stopped after ArcGIS 10.2. However, "newer" versions were developed and hosted on the Esri Downloads FTP to maintain compatibility with later ArcMap releases. Look for HEC-GeoRAS 10.8.0.3 .

I'm assuming you meant to type "HEC-GeoRAS for ArcGIS 10.8 upd"! hec georas for arcgis 108 upd

. While HEC-RAS version 5.0 and later now include internal GIS tools (RAS Mapper), many engineers still rely on the HEC-GeoRAS toolbar for specific 1D geometric preprocessing in ArcMap 10.8 Hydrologic Engineering Center (.mil) Essential Setup for ArcGIS 10.8 hec georas for arcgis 108 upd

A high-resolution is required, represented as a TIN (Triangulated Irregular Network) or a GRID . HEC-GeoRAS Downloads - Hydrologic Engineering Center hec georas for arcgis 108 upd