US Army Corps of Engineers
Hydrologic Engineering Center

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Version 1.4.2 of the Flood Damage Reduction Analysis (HEC-FDA) software is now available. This version is an update to Version 1.4.0 and 1.4.1.

HEC-FDA 1.4.2 is a certified planning model. It is the USACE preferred version of the HEC-FDA software because it contains bug fixes and general enhancements to the program's usability that are lacking in HEC-FDA versions 1.4.0 and 1.4.1. For instance, its databases are designed to work in a Windows 10 environment, whereas version 1.4.0 and 1.4.1 may not always work in a Windows 10 environment. Converting a study from version 1.4.0 or 1.4.1 to version 1.4.2 is simple, automated and fast. While version 1.4.2 is the preferred version of HEC-FDA, versions 1.4.0 and 1.4.1 are also certified for use in planning studies and can continue to be used - without special approval, wherever it is more practical or convenient. In most cases all three versions of the software produce identical results. The one exception to this rule are studies whose inventories contain inconsistent SID reach-bank assignments. In these cases, structures may be assigned to different damage reach in version 1.4.2 (and 1.2.5a) than they would be in versions 1.4.0 and 1.4.1. You can always contact HEC if you have questions about converting your study.

For a more detailed description of the modifications/enhancements in Version 1.4.2 please refer to the HEC-FDA Version 1.4.2 release notes.