While very handy, these tools do not entirely replace the previous method of using cross sections in a 1D geometry, so we’ve kept the previous tutorials below. Here are a few videos highlighting the new terrain modification tools in HEC-RAS 6.0. New Terrain Modification Tools in HEC-RAS 6.0 Basically, anything you can draw in a series of cross sections – so long as it doesn’t cross over on itself (sorry, no caverns!) – can be added to your terrain.

Now if you’d like to try it yourself, you may want to start with something a bit more practical some of the features we build into our terrain in the instructional videos below include:Īre there any other features you’ve added to previous models or that you would like to add to future models? Let me know and I’ll add some examples. You can use HEC-RAS to modify your terrain in any way you see fit in this model, for example, we use terrain modification to build fences around sheep pens just for fun:

If you would prefer to follow along with the written steps, check out our blog post here.

In this article, we’ll walk through the steps of modifying terrain data with HEC-RAS using video tutorials.

Manual de hec ras