Importing Data

27 Articles

Information on how to import external data into GeoHECRAS for constructing, editing, analyzing, and reviewing HEC-RAS models. Includes tutorials, reference articles, videos, and more.

Adding an AutoCAD Drawing

This video details how to add and georeference an AutoCAD drawing file for a HEC‑RAS model. There are two ways of...

Adding an Elevation Layer

GeoHECRAS can construct an elevation terrain surface from online elevation data sources or through a local elevation data file. Adding...

Assign River Reaches command

The Assign River Reaches command enables the user to quickly assign a polyline as a river reach. Follow these steps...

Convert Elevations command

The Convert Elevations command allows elevation grids (also known as digital elevation models, DEMs, and raster elevation grids) to be...

How to Import a HEC-RAS Model?

GeoHECRAS is a data wrapper to the HEC‑RAS software. It is quite easy to import any existing HEC‑RAS model. Follow these...

Import River Reach Alignment command

The Input | Cross Sections | Import River Reach Alignment command allows the software to import surveyed river reach alignment from a wide...

Importing MicroStation Terrain Surfaces

With so many civil engineering software applications available, each with their own proprietary database structures, data interoperability has became a major...

Reload Layer command

The software allows the user to reload a layer by right-clicking on the layer and selecting the Reload Layer command....

Setting Model Units (US/Metric)

GeoHECRAS fully supports both Metric (SI) and US units. Default Project Units The software will auto detect the country that the...

Terrain Elevation Geometry Sources

GeoHECRAS can utilize elevation data for creating and generating: Terrain surfaces Cross sections Roadway crossing high chord geometry Inline structure...