This link includes a document of “Known Issues” found in version 5.0.6 of HEC-RAS to date.  The document outlines all of the Issues (bugs) we have found so far.

Please look closely at this document, as there as a few issues that are potential computational problems.  Specifically issues 1, 2, 5, and 7.  Please review these issues closely.  If you have any of these situations use the suggested work around, or solution to get past the issue.  Everyone should look at issue 1 and 2, as they are possible in many models.

Sorry for any inconvenience this may cause you.  Keep letting us know if you find other problems with the software.

Gary W. Brunner, P.E., D. WRE, M. ASCE

Senior Technical Hydraulic Engineer

Hydrologic Engineering Center, USACE