To download the 64-bit version of , visit the official HEC-RAS Downloads page hosted by the U.S. Army Corps of Engineers (USACE) . Starting with Version 6.0 , the software only supports 64-bit Windows operating systems. Latest Versions Available (May 2026)
: The current stable release for Windows 10/11 64-bit. hec ras download 64 bit
: A major update released in March 2026 featuring a completely redesigned modern user interface and sparsely defined mesh generation parameters. To download the 64-bit version of , visit
: A no-admin-required version of HEC-RAS 2025 is available for users with restricted IT permissions. How to Download and Install To download the 64-bit version of
64-bit Computational Engines - Hydrologic Engineering Center