FIRM-910520�
MORRISON HYDROLOGY /ENGINEERING, INC.
20 AVENUE H EAST, SUITE 102
ARLINGTON, TEAS 76011
METRO 817 - 640 -4554
May 20, 1991
Mr. Matthew Miller, P.E.
Risk Studies Division
Federal Insurance Administration
Federal Emergency Management Agency
500 C Street, SW
Washington, D.C. 20472
g1-2
FILE COPY
Re: City of Coppell Flood Insurance Revision Study Case No.
6-89-236
Dear Mr. Killer:
This letter is in regard to the ongoing review of the City of
Coppell Flood Insurance Study. As per your request and
our conversation of May 17, 1991 we are sending revised
copies of the flood plain and floodway delineations for
Denton Creek, Grapevine Creek, Cottonwood Branch and the Elm
Fork of the Trinity River. We have reviewed the sheets
containing these delineations to make sure they match -and we
reviewed the delineations presented earlier for accuracy. As
a result sove changes were made to the delineations presented
earlier. Please discard these earlier delineations.
As we discussed, the City of Coppell is _continuing to
administer their floodplain management program based on the
"best available data" as required by the NFIP Regulations.
This "best available data" is the subject revision report
that is presently under review. our understanding is that
the technical portion of the report has been reviewed and we
are not aware of any concerns. The only concern that we are
aware of to date regards the mapping (which we are submitting
with this .letter). Your concern that landowners may be
paying for flood insurance based on the latest FIRM and not
the most recent data is valid. The only way we know of to
solve this problem is a speedy resolution of the subject
revision request. To that end we are available to answer any
questions that are discovered by your technical consultants.
;
FEMk Revision Request
May 20, 1991
Page -2-
Thank you for your diligence in this natter, please contact
me with any questions.
Sincerely,
MORRISON HYDROLOGY /ENGINEERING, INC.
r
Ronald W. Morrison, P.E.
Senior Hydrologist
Copy to: Mr. Jerry Sparks, Dewberry and Davis
v,.--'Xs. Shohre Daneshmand, City of Coppell
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CITY OF COPPELL , TEXAS
PLA TE 26