Time Series Outflows for Dams

Want to simulate a time series of outflows for a dam?  It’s easy.  In Version 5.0.3 there’s a new feature called Outlet T.S. (Outlet Time Series) in the inline structure editor.   Click the Outlet TS button and give your new time series a name.  You might name it “Powerhouse” or “Fish Bypass” or something […]

Read More

Transect for Extracting Flow in a 2D Area

*Update:  Version 5.0.2 now does flow transects in RAS Mapper with profile lines.  No longer necessary to use a 2D Area Connection to do this. A very common output request in 2D modeling is for flow over (through) a transect line.  HEC-RAS 5.0 does not have a specific tool for extracting flow data along a […]

Read More

Using User-Defined Curves for Gates

HEC-RAS allows for four different gate types that will compute the stage-discharge relationship of that gate for you based on the physical size/shape of the gate and a few empirical coefficients:  Sluice Gates, Radial Gates, Overflow Gates (closed top) and Overflow Gates (open air).  However, sometimes the built-in gate types don’t quite fit the gate […]

Read More

Sediment Transport Quasi Unsteady Flow Editor Flow Series Error

“Flow or Temp time series date is not sufficient to run requested time window.”  This one has been around for a while, but it just showed up again on the Facebook HEC-RAS User’s Group, so I thought I’d show the fix(es) here.  This applies to the new beta version of 5.0, as well as previous […]

Read More