Version 4.8.0 Patch

Release Date

June 16, 2014


The Flood Control District of Maricopa County is officially releasing Drainage Design Management System for Windows (DDMSW) 4.8.0 patch on June 16, 2014. This patch adds more capabilities and features to the previous version of DDMSW (Version 4.6.4d) that enhance the development of HEC-1 model and use of Rational Method as well as in the post-processing of model results.

In addition to the improvements on the hydrology module, significant refinements have also been implemented on the river mechanics module including:
  • Lateral Erosion
  • Launch-Able Riprap
  • Low-Flow Incisement Methodology
  • Riprap Sizing
  • Sediment Yield Analysis
Also, street drainage hydraulics and storm water drainage systems modeling are two features that are currently implemented in this new release of the program.

Upgrading DDMSW 4.6.4D to DDMSW 4.8.0

After applying DDMSW 4.8.0 patch, the data in DDMSW 4.6.4d will be preserved but it is still highly recommended to back up the project data in your current install of DDMSW before updating it. The following are step-by-step procedures to upgrade to DDMSW 4.8.0.
  1. Download the Patch. Right-click on the Installation File (ZIP) and choose "Save Target As" to download the self-extracting file, FcdmcPatch480.Exe, to the installation folder of DDMSW 4.8.0. (By default, the installation folder is C:\DDMSW464D\ST).
  2. Run the Self-Extracting File. After saving the Patch to the same location where DDMSW 4.6.4d is installed, run the file. If the operating system is older than Windows 7, double-click on the FcdmcPatch480.Exe. For Windows 7 or newer operating systems, right-click on the FcdmcPatch480.Exe file and select "Run as administrator." During the upgrade, a windows form will pop-up to show that the patch is installing.
  3. Check if the upgrade is successful. If successful, a message box pops up that reads, "All items for DDMSW Patch were successfully extracted."
  4. Check if the installed version is correct. After the patch has been installed, DDMSW can be opened as usual. To check what version update is installed, click on Help and then select About from the pull-down menu to display the version number.


If you have any questions, please email Dr. Carlos Carriaga.