HEC has released a new version of HEC-RAS called version 5.0.5 today. This version is a bug fix only version (i.e. No new features). Unfortunately in version 5.0.4 there was a bug in which User defined Manning’s n value override regions for 2D Flow Areas (called “2D Area Manning’s n Regions”), define in the Geometry […]
Expanding upon Chris’ discussion of where to place bank stations, what should you do about high terrain somewhere in the middle of your cross section? Here is an example: How should we treat the left overbank? It’s hard to tell if the high area next the left bank is isolated (i.e., it would be an […]
Lately, I’ve seen a lot of basic bank station issues for models I have reviewed. Some real basic stuff. So I thought it would be good to go back to the basics a bit here and review proper placement of bank stations for cross sections in HEC-RAS. What do bank stations do for us? First […]
Many of us were hoping to see the official release of HEC-RAS version 5.0 around now (end of Feb, early March, 2015), but unfortunately there have been some delays due to a large amount of bug fixes and HEC won’t be releasing it as planned. I haven’t been provided with a new date, and I […]
(Update: New release is now available here) Just heard from HEC that a new, updated beta version of HEC-RAS 5.0 will be coming out soon (later this month or early next). The full release of HEC-RAS Version 5.0 is still scheduled for the end of the calendar year. New features in the next beta release […]
Many water surface profile software programs prior to HEC-RAS had a quirky rule against having perfect vertical sides. In other words, you could not have two or more elevations at the same stationing. A perfect example of this is a rectangular flume. The workaround for the older software was to define the tops of the […]
Here’s a nice feature in HEC-RAS input tables that will save you a little bit of time. Let’s say you want to highlight an entire column of data. Maybe you want to delete all of the values in that column or paste in a block of data. Or perhaps you want to highlight all of […]