Although these examples all use the number “01” in the extension, RAS can have multiple instances of each of these files for a given project (except the. This post will feature a steady flow example project, and will list common HEC-RAS files that you’ll see for Unsteady flow, Sediment Analysis, Water Quality, and Hydraulic Design projects. Keeping track of these files in an organized manner is good practice, especially as your models grow in size and complexity.
It is important to know what each of these files does and how they fit into the overall scheme of your project.
Behind the scenes, HEC-RAS automatically creates a series of input and output files when working with a model.
