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Known Shortcomings and Opportunities for Improvement

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Andy Carter, PE edited this page Nov 16, 2021 · 11 revisions

Known Shortcomings and Opportunities for Improvement ras2fim agency

HEC-RAS Model Limitations of RAS2FIM

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  • RAS2FIM currently assumed that all HEC-RAS model are composed of a single reach and a single river. It multiple reaches and rivers are in the HEC-RAS geometry file, only the first reach and the first river is evaluated.

  • Only steady-state one-dimensional models can be evaluated. Unsteady and 2-dimensional models are not allowed to be used as input to the RAS2FIM workflow.

  • Bridges, culverts and in-line structures are allowed in the provided HEC-RAS models. Storage areas, lateral structures, SA/2D Connections and 2D flow areas are not allowed.

RAS2FIM - Creation of flood inundation raster libraries and rating curves from HEC-RAS models

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