Open RAS Mapper by clicking the icon indicated below.

To import a projection file, complete the following steps. After you have obtained a projection file, you must import it into HEC-RAS. How To Import A Projection File Into HEC-RAS. * HEC-RAS download link provides gnu general public license version of the software. PRJ File link (highlighted in the image above) to download the projection file. Sediment Transport/Movable Boundary Computations.In addition to the four river analysis components, the system contains several hydraulic design features that can be invoked once the basic water surface profiles are computed. A key element is that all four components use a common geometric data representation and common geometric and hydraulic computation routines. The HEC-RAS system contains four one-dimensional river analysis components for: (1) steady flow water surface profile computations (2) unsteady flow simulation (3) movable boundary sediment transport computations and (4) water quality analysis. The following is a description of the major capabilities of HEC-RAS. HEC-RAS is designed to perform one-dimensional hydraulic calculations for a full network of natural and constructed channels.

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