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Last site update: 2/2/09

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HEC-RAS

Description

A frequent use of the HEC-RAS model is the investigation of the impacts of encroachment upon the floodplain (flood analysis); for example delineating the approximate limits of the 100-year floodplain.  In addition, the effects of various obstructions such as bridges, culverts, weirs, and other structures in the flood plain can be considered in the computations.

Used by: Hydrologists and Engineers

Additional Information :
Website - http://www.hec.usace.army.mil/software/hec-ras/hecras-hecras.html

Uses

  • The HEC-RAS modeling system simulates flow through a full network of open channels, natural and man-made.
     
  • The HEC-RAS modeling system develops water surface profiles (depth of flow, water surface elevation, velocity.)
  • The HEC-RAS modeling system simulates sediment transport and deposition in a stream channel.

Uses by Discipline


Engineers

  • Develop Water surface profiles, evaluate depth of flow in stream channels, delineate floodplain and analyze flooding potential.
  • Model and analyze a network of stream channels, a dendritic system, or a single river reach.
  • Model subcritical, super critical, and mixed flow regimes.
  • Model sediment transport and deposition in a stream channel.
  • Model the hydraulics of bridges, culverts, and stream junctions on stream flow and floodplains.

Hydrologists

  • Develop Water surface profiles, evaluate depth of flow in stream channels, delineate floodplain and analyze flooding potential.
  • Model and analyze a network of stream channels, a dendritic system, or a single river reach.
  • Model subcritical, super critical, and mixed flow regimes.
  • Model sediment transport and deposition in a stream channel.

Installation Instructions

Contacts for Software Help

Danny Rahnema OSM-KFO, 865.545.4103 x 167
Marcello Calle WY, 307.777.7267

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Note:

HEC_RAS version 4.0 is available.

Check the Installation Instructions on this page for more information.

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