This version added canopy and surface simulation components to subbasin elements.
Windows XP, 7, or later. It is also available for Linux and Sun Solaris. Processor: Intel Pentium III 800 MHz or higher. Memory: 512 MB RAM minimum (1 GB recommended). Storage: 120 MB of free disk space for the installation. Installation Steps Installing HEC-HMS 3.5 is a straightforward process. HEC-HMS Downloads - Hydrologic Engineering Center hec hms 3.5 download
Comprehensive Guide to HEC-HMS 3.5: Download, Features, and Setup This version added canopy and surface simulation components
Released originally in 2010, version 3.5 introduced several critical enhancements that expanded the software's modeling precision. Processor: Intel Pentium III 800 MHz or higher
The primary source for the HEC-HMS 3.5 setup file is the HEC Downloads Archive . The Windows setup package is approximately 57.0 MB .
Added vertical and radial gates to reservoir spillways, along with a specified release method for more controlled routing simulations.
Introduced the nonlinear Boussinesq baseflow method. System Requirements for Installation