RAS Commander Hydro¶

A focused tool, not the full library

RAS Commander Hydro provides a focused subset of helper tools. For the most powerful and complete way to automate HEC-RAS, use the ras-commander library directly.

RAS Commander Arc Hydro Tools brings HEC-RAS 6.x direct data access into ArcGIS Pro. It lets hydraulic engineers and GIS professionals extract and visualize HEC-RAS 1D and 2D geometry, terrain, and results data without manual conversion steps. The toolbox is free and open source, and is built on the ras-commander library.

The toolbox was developed by CLB Engineering in partnership with ESRI, integrating into the Arc Hydro Tools framework using CLB's LLM Forward approach.

Key Features¶

Direct HDF5 Import — Load HEC-RAS data directly from geometry (g*.hdf) and plan (p*.hdf) files.
1D Geometry Support — Extract cross sections, river centerlines, bank lines, and structures.
2D Geometry Support — Import mesh elements, breaklines, boundary conditions, and cell polygons.
Pipe Networks — Full support for storm/sewer pipe networks including SWMM imports.
Results Visualization — Display maximum WSE and velocity results with time of occurrence.
Terrain Loading — Import HEC-RAS terrain layers from RAS Mapper VRT files.
Project Organization — Batch process entire HEC-RAS projects into organized geodatabases.

Who It's For¶

Municipalities integrating HEC-RAS data into dashboards.
Engineers communicating multi-hazard flood risk.
GIS professionals preparing 2D model data.
Researchers analyzing model results.

Where to Go Next¶

Installation — install via Arc Hydro Tools or set up a development copy.
Features — a reference of the available tools.

Resources¶

Licensed under the MIT License.