The Final Version of HEC-RAS 6.0 is now available!

The FINAL release of HEC-RAS 6.0 is now available!  See below message from HEC for more info.  And a HUGE Congratulations to Gary Brunner for an amazing career.  Thanks for all the hard work you put into making HEC-RAS such an awesome software program for us all to use.  Best of luck in your retirement! […]

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Lateral Structure on River Bends

Lateral structures can be used in HEC-RAS for transferring flow from a river/reach to another river/reach, 2D area or storage area. This allows the user to physically represent a variety of geometric features. In this example, lateral structures were used to capture flow overtopping high ground on the spine of a sharp river bend in […]

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HEC-RAS 6.0 beta 2 is now available!

The beta 2 release of HEC-RAS 6.0 is now available. This fixes the bug with 2D bridges in SI models. See below message from HEC for more info:   We have released another beta version, which is now available from our website. Several bugs have been fixed from the previous version. I have enclosed a […]

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HEC-RAS 6.0 beta is now available!

RAS Users!  Go get your copy of HEC-RAS 6.0 beta.  It’s now available!!! I’ve had the opportunity to test drive the new 2D bridge feature and it is AWESOME!  Very easy to use and finally gives us the ability to model bridges in 2D!!!  HEC will also make available some data sets to demonstrate how […]

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Steady Unsteady? 1D, 2D, 3D? Modeler Application Guidance

Hey RAS Users.  HEC just put out this very informative document that helps and guides the modeler with the decision between building a steady versus unsteady model, as well as when to go with a 1D, 2D, or 3D model. Modeler Application Guidance for Steady vs Unsteady, and 1D vs 2D vs 3D Hydraulic Modeling. […]

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HEC-RAS Subgrid Bathymetry Theory and Application

Mark Forest is one of the most knowledgeable H&H modelers I know.  He’s also a very experienced RAS modeler.  Here he discusses the benefits of the relatively unique subgrid bathymetric approach to terrain surface discretization that HEC-RAS uses, specifically on the topic of computational mesh cell size.  Read this.  Then read it again.  This is […]

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