The Rice University is situated surrounded by Harris Gully watershed that is covering the area of the drainage o roughly five square miles that consists frequently of the fully-developed suburban and the light commercial terrain use.

To the Hermann Park (that is the biggest medical center of world) and Hermann Park, the land is also home. The Harris Gully watershed has been affected by the several storms and among the all storms, the one major that can be perceived as the most notable of all is Tropical Storm Allison that occurred in the 2001.

There were many critical flooding issues were caused by the TS Allison all around the watershed and that resulted in the approximately $5 billion in the damages from the TS Allison. The flood was especially very critical at the Harris Gully’s downstream portions where the Texas Medical Center and the Rice University are located.

The storm flown out the systems and much critical equipment with it and it was the worst ever flood seen in the history of the Harris Gully.


The SWMM (Storm Water Management Model) that was initially developed by the EPA has now been utilized widely in the urban areas for the analysis, planning and the design associated to the runoff of the storm water, sanitary sewers, combined sewers and the drainage systems.

The XPSWMM program that is published by the XP Solution Inc is using the SWMM (Storm Water Management Model) by the EPA as the main runoff hydrograph simulators for the runoff quality and quantity.

The XPSWMM program is by far the best available program in order to improve the flood problems and issues and the key thing that has made it the best among the other programs is that the software has got the ability to combine the 1D river’s hydraulic model with the 2D rainfall runoff in order to generate the floodplain maps.

The XPSWMM program is approved by the FEMA for hydraulic and hydrologic applications detailed in the study.

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