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I downloaded HEC-RAS 2.2 and kept getting an error saying memory is too big....... I do not know why I get this error.

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...

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...

SMIAH, I have some understanding of wave period, nonbreaking wave, ahallow vs deep water. But are there any 2D models that are free? psmart, I do not the inflow of the wave and is the reason why I need to model it... any advice on how to estimate the inflow?

I haven't looked into a flood study yet. I am trying to get an idea about possible modeling techniques.

I agree with gbam. You should use a junction to model the split and recombining of the reaches. You can model the flow by using the Flow Optimizations module in the steady flow analysis. (under options)

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