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Ken Griffin - Floodplain/Floodway at 799 S. Denton Tap Rd.
From:Ken Griffin
To:Carol Vessey
Date:7/1/2005 4:47 PM
Subject:Floodplain/Floodway at 799 S. Denton Tap Rd.
Carol
As always, I enjoyed our conversation today. I have evaluated the parcel of land at the northwest
corner of Denton Tap Road and Bethel Road (799 S. Denton Tap Rd.) in regard to floodplain and
floodway. My review shows that 11.07 acres of the property is within a 500 year floodplain, 100 year
floodplain or a floodway.
Development within a 500 year floodplain is not regulated by the City so there will be no problem
there. About 0.97 acres is in the 500 year floodplain.
The remaining 10.10 acres (11.07 - 0.97) is in the 100 year floodplain or the floodway. The City does
not allow any development within the floodplain without a detailed technical study showing the
impacts of the development on upstream and downstream property. We also do not allow development
in the floodplain if the development results in any increase in the floodplain elevation.
The bigger problem on this tract of land is that 8.45 acres of the 10.10 acres is in the floodway. It is
difficult, if not at times impossible, to reclaim land from a floodway without having any impact on the
floodplain elevation. While a detailed study may show that you can reclaim the 1.65 acres (10.10 -
8.45) that are in the 100 year floodplain, it's my opinion that very little of the remaining 8.45 acres in
the floodway could be reclaimed for development.
Hopefully this information is helpful. If should have any additional questions please contact me at
your convenience.
Ken Griffin P. E.
Director of Engineering/Public Works
972-304-3686
kgriffin@ci.coppell.tx.us
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