FIRM-930518Federal Emergency Management Agency
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
The Honorable Mark Wolfe
Mayor, City of Coppell
P.O. Box 478
Coppell, Texas 75019
Dear Mayor Wolfe:
Washington, D.C. 20472
MAY 18 1993 �S;1 �6'93
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IN REPLY REFER TO:
Case No.: 93- 06 -091R
Community: City of Coppell, Texas
Community No.: 480170
104
This is in response to a letter dated January 5, 1993, from Mr. Kenneth M.
Griffin, P.E., City Engineer, City of Coppell, to the Federal Emergency
Management Agency (FEMA) regarding the Flood Insurance Study (FIS) and Flood
Insurance Rate Map (FIRM) for the City of Coppell. Mr. Griffin requested
that FEMA evaluate the effects that proposed improvements to Andrew Brown Jr.
Community Park along Denton Creek would have on the preliminary FIS and FIRM.
All data required by FEMA to evaluate this request were submitted by
Mr. Griffin with his letter dated January 5, 1993.
In his January 5 letter, Mr. Griffin certified that this project is sponsored
by the City of Coppell for public benefit, and therefore, is in accordance
with Section 72.5 of the National Flood Insurance Program (NFIP) regulations.
The fees associated with the review of this Conditional Letter of Map
Revision (CLOMR) have been waived.
We have reviewed the data submitted with respect to the data used to prepare
the preliminary FIRM for the City of Coppell. We believe that if the
proposed project is constructed as described in the report entitled "Request
for Conditional Letter of Map Revision on Denton Creek in Coppell, Texas,
Andrew Brown Jr. Community Park for the City of Coppell, Texas," prepared by
Albert H. Halff Associates, Inc., dated December 1992, then a revision to the
FIRM and FBFM would be warranted. This CLOMR is based on the data used to
prepare the December 18, 1991, preliminary FIRM. The preliminary FIRM must
become effective before a revision can be issued. Changes, if any, to the
data used to prepare the preliminary FIRM before it becomes effective may
affect this CLOMR determination.
Upon completion of the project and receipt of the data listed below, we will
make a final determination on revising the FIS report and FIRM.
• Certification that all fill placed in the currently effective 100 -year
floodplain and below the proposed base flood elevation (BFE) is
compacted to 95 percent of the maximum density obtainable with the
Standard Proctor Test method issued by the American Society for Testing
and Materials (ASTM Standard D -698) for all areas to be removed from the
100 -year floodplain
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• As -built plans, certified by a registered professional engineer, of all
proposed project elements
• As -built HEC -2 hydraulic analysis of the 100 -year flood and 100 -year
floodway
• Copy of the public notice distributed by the community stating the
community's intent to revise the floodway, or a statement by the
community that it has notified all affected property owners and affected
adjacent jurisdictions
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After receiving appropriate documentation to show that the project has been
completed, FEMA may initiate a revision to the FIS report and FBFM. Because
the BFEs would change as a result of this project, a 90 -day appeal period
would be initiated, during which community officials and interested persons
may appeal the revised BFEs based on scientific or technical data.
Because the existing floodway may need to be modified as part of the
revision, we would require a letter from you stating that the community would
adopt and enforce the modified floodway. If the State of Texas has
jurisdiction over either the floodway or its adoption by your community, we
would need a copy of your letter to the appropriate State agency notifying it
of the floodway modification and a copy of a letter from that agency stating
its approval of the modification.
This response to Mr. Griffin's request is based on minimum floodplain
management criteria established under the NFIP. Your community is
responsible for approving all proposed floodplain development, including this
request, and for assuring that the necessary permits required by Federal or
State law have been received. State and community officials, based on
knowledge of local conditions and in the interest of human safety, may set
higher standards for construction or may limit development in floodplain
areas. If the State of Texas or the City of Coppell has adopted more
restrictive or comprehensive floodplain management criteria, those criteria
take precedence over the minimum NFIP requirements.
Should you have any questions regarding this matter, please contact the
Chief, Natural and Technological Hazards Division of FEMA in Denton, Texas,
at (817) 898 -5127, or Mr. John Magnotti of my staff in Washington, DC, at
(202) 646 -3932, or by facsimile at (202) 646 -3445.
F
cc: Mr. Kenneth M. Griffin, P.E.
City Engineer
City of Coppell
Ms. Jean Hansen
Albert H. Halff Associates, Inc.
Sincerely, _66�
�/ William R. Locke
t'Y, Chief, Risk Studies Division
Federal Insurance Administration