US Army Corps of Engineers
Hydrologic Engineering Center

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CEIWR-HEC makes every effort to fully test the software before releasing it for general use. Testing includes an extensive validation process where results computed by the software are compared to independently developed solutions. However, problems sometimes escape the extensive battery of tests used to certify a new version. If you have encountered a problem, then please take the time to send us a bug report. The report must be written and should be submitted directly to the HEC-HMS team at:

The bug report should include the following information:

  1. HEC-HMS version
  2. Operating system and related details of your computer system
  3. Area of the program where you found the bug
  4. Description of the things that caused the bug, including menu selections, buttons pressed, or data entered

A member of the HEC-HMS development team will be assigned to examine your bug report and try to reproduce the problem in our test environment. You may be contacted to provide more details or to send a copy of the project you were working with at the time the problem first appeared.