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  • Users: jeffd64
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  1. jeffd64

    HEC-RAS Version Difference

    Hello, I acquired HEC-RAS input from FEMA. The version that was used to calculate the floodways and natural flow values was HEC-RAS V. 2.2. We are currently using HEC-RAS V4.1. When we run the FEMA input our water surface elevations for the the floodways are off by at least 0.5 ft or more. Are...
  2. jeffd64

    HEC-RAS Overtopping Problems

    Hi All, I am currently running into a problem with HEC-RAS. I currently and modeling a bridge where the immediate upstream cross section is approximately 26-ft away. When I run the model, the water surface elevation at the immediate upstream x-sec is 2-3ft above the bridge x-sec. The model...
  3. jeffd64

    Modeling Ocean Waves in HydroCAD

    Hello, I have a pond that is separated from the ocean via berm. Does anyone know how to model waves overtopping the berm in HydroCAD? Thanks

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