US Army Corps of Engineers
Hydrologic Engineering Center

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A number of different documents have been created to describe the use and technical background of HEC-HMS.

Quick Start Guide (CPD-74D) Provides help for users new to the program; includes a tutorial.

Version 4.3, September 2018
Version 4.2, August 2016
Version 4.1, July 2015
Version 4.0, December 2013
Version 3.5, August 2010
Version 3.4, August 2009
Version 3.3, September 2008
Version 3.2, April 2008
Version 3.1.0, November 2006
Version 3.0.0, December 2005

User's Manual (CPD-74A) Description of the use and application of the program.

Version 4.3, September 2018
Version 4.2, August 2016
Version 4.1, July 2015
Version 4.0, December 2013
Version 3.5, August 2010
Version 3.4, August 2009
Version 3.3, September 2008
Version 3.2, April 2008
Version 3.1.0, November 2006
Version 3.0.1, April 2006
Version 3.0.0, December 2005
Version 2.1.0, January 2001

Applications Guide (CPD-74C) Illustrates application of the program to studies typical of those undertaken by Corps’ offices.

June 2017
March 2015
March 2008
December 2002

Technical Reference Manual (CPD-74B) Discussion of the technical underpinnings of the program including theoretical basis, parameter estimation techniques, and application suggestions.

March 2000

Release Notes Description of the changes that occurred at each new release including bug repairs, new capabilities, and changes in operation.

Version 4.3, September 2018
Version 4.2.1, March 2017
Version 4.2, August 2016
Version 4.1, July 2015
Version 4.0, December 2013
Version 3.5, August 2010
Version 3.4, August 2009
Version 3.3, September 2008
Version 3.2, April 2008
Version 3.1.0, November 2006
Version 3.0.1, April 2006
Version 3.0.0, December 2005
Version 2.2.2, May 2003
Version 2.2.1, October 2002
Version 2.2.0, August 2002
Version 2.1.3, October 2001
Version 2.1.2, June 2001
Version 2.1.1, February 2001

Validation Guide Description of the validation testing procedures used to determine that the software is operating correctly during a numerical simulation. The project files used for testing are also available in a data kit.

Version 4.2, August 2016
    Download Data Kit (1.11 Gb)
Version 4.1, July 2015
    Download Data Kit (1.13 Gb)
Version 4.0, December 2013
    Download Data Kit (566 MB)
Version 3.5, August 2010
    Download Data Kit (242 MB)
Version 3.4, August 2009
    Download Data Kit (242 MB)

Additional Resources Other documents and reports related to the development or use of the program.

Implementing the HEC-HMS Program Interface in Alternate Language
Developing Reports Using Extensible Stylesheet Language>
    Download Example Stylesheet