CivilGEO’sGeoHECRAS Version 3.0 utilizes an improved and easier to operate FlexNet software licensing technology from Flexera Software. GeoHECRAS is an AutoCAD, Bentley MicroStation, and ESRI ArcGIS compatible interactive 2D/3D graphical user interface data wrapper to US Army Corps of Engineer’s HEC-RAS software.It computes water surface profiles for steady and unsteady flow conditions, analyzes and designs bridge and culvert roadway crossings, generates floodplain and flood hazard maps, performs river and stream restorations and realignments, computes flood inundation maps for possible dam and levee failures, and more.