: New tools allow for modifying terrain using lines, polygons, or predefined shapes (like circles and rectangles) to simulate channels, levees, or high-ground options. Raster Calculator
If you haven't updated yet, or if you are looking for the right source to get started, here is why HEC-RAS 6.0 needs to be on your hard drive today. hec ras 6.0 download
HEC-RAS 6.0 is available for download from the official U.S. Army Corps of Engineers (USACE) website : New tools allow for modifying terrain using