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HEC-RAS download

Free Performs steady and unsteady flow calculations
6.5 (latest)
Mar 5, 2024
Mar 15, 2016
hec-ras_501_setup.exe
4.1
Mar 10, 2010
4.0
May 15, 2008
Jul 25, 2008
3.1
Mar 3, 2008

What's new


v5.0 [Mar 15, 2016]
Two-dimensional and combined one- and two-dimensional Unsteady Flow Modeling
New HEC-RAS Mapper capabilities and enhancements
Automated Manning’s n value calibration for one-dimensional Unsteady Flow
Simplified Physical Breaching algorithm for Dam and Levees
Breach Width and development time calculator
New Hydraulic outlet features for Inline Structures
Sediment Transport Modeling Enhancements: Including Reservoir flushing and sluicing, as well as channel stability using BSTEM integrated within HEC-RAS
Water Quality Modeling Enhancements
Completely new two-dimensional User’s Manual
Several new example applications within the Applications Guide
Updates to User's Manual, Hydraulic Reference Manual, Applications Guide, and Help System






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