DR9305-CS 920519 (2)The City Witl~ A Beautiful Future
Nay 19, 1992
P.O. Box 478
Coppell, Texas 75019
214-462-0022
Mr. Jack B. Quarles, P.E.
FEMA Region VI/Federal Center
800 N. Loop 288
Denton, TX 76201-3698
RE: Improvements to Grapevine Springs Park
Dear Mr. Quarles:
Thank you for taking the time to meet with me on May 8, 1992 to discuss
the proposed improvements to Grapevine Springs Park by Dallas County.
Based on that meeting, it is my understanding that the pedestrian bridges,
the proposed fill, and the proposed fence can not be constructed in the
floodway without the appropriate studies to indicate there is a zero rise
in water surface. This information was relayed to Dallas County. Their
response was that they were disappointed that the City would not allow the
construction without a study. However, their question to me was could
they still go in and stabilize the existing eroded bank to keep it from
eroding even further. My understanding of what they intend to do is to
cut back or keep the current bank at its location and install a two to one
concrete rip rap that would transition on each end to a four to one slope
to meet the existing slope of the bank. This would be strictly to
stabilize the existing bank to prevent any further erosion. They would
not be bringing in any fill or constructing any improvements in the
floodway except for the concrete rip rap for the bank stabilization.
Their concern is that prior to designing the bank stabilization, they
would like to have FEMA concurrence that it would be acceptable once
designed. They feel they have already spent many months and man hours on
a design which the City and FEMA will not now approve. I indicated to a
representative with Dallas County that I would correspond to FEMA
requesting that, if this bank stabilization met with generally accepted
FEMA guidelines, that I would request FEMA respond to the City that the
bank stabilization would not pose a problem to the cities' participation
in the floodplain program. A written response to that effect would be
greatly appreciated.
Thank you for your timely consideration of this request. If you should
have any questions or need any additional information, please feel free to
contact me at your convenience.
Sincerely,
K th M. Grif~fin, P.E.
City Engineer
cc: Alan D. Ratliff, City Manager
Steve Goram, Director of Public Works