GeoHECRAS can now import AutoCAD Civil 3D Surfaces, ArcInfo Elevation Grid Files, and more…

As requested by our users, the following elevation data file formats can be used for cutting HEC-RAS cross sections and generating detailed floodplain maps:

• ArcInfo ASCII Elevation Grids
• ArcInfo Binary Elevation Grids
• ArcInfo Contour Shapefiles
• ArcInfo Elevation Point Shapefiles
• ArcInfo GDB File Geodatabases
• ArcInfo MDB Personal Geodatabases
• AutoCAD Civil 3D Surfaces
• AutoCAD Contours
• GeoTIFF Elevation Grids
• LandXML Terrain Models
• USGS DEM Elevation Grids
• USGS NED Elevation Grids – BIL Format
• USGS NED Elevation Grids – Float Format
• XYZ ASCII Point Terrain Data

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