Carter Ph 1 FS-CS 990618 Federal Emergency Management Agency
Washington, D.C. 20472 QOg'~..~ ~/~t/~,
CERTIFIED M~L IN REPLY ~FER TO:
RETU~ ~CE~ ~QU~TED C~e No.: ~734P
~a Honorable C~dy Shea~ Co~u~: Ci~ of Cop~ll, Tern
Mayor, Ci~ of Coppell Co~uni~ No.: 480170
255 Par~ay Boulevard Panel Affected: ~10 E
Coppell, TX 751~ Effective Date of J~ ]8 ]~
This Revision:
102-I-C
Dear Mayor Sheeh~:
~s res~n~ to a requ~t ~t ~e F~er~ ~ergency Managemem Agency (FEMA) revise ~e effective
Flo~ ~ur~ce ~te Map ~) for yo~ co~ ~ accord~ce wi~ Pan 65 of ~e Natio~l FI~
Imur~ce ~ogrm ~) re~afiom. ~ a leuer ~ted Feb~ 10, 19~, Mr. Ro~ L. WriSt, P.E.,
Vice President, Nee~ WriSt Engineers, Inc., requested ~at FEMA revise ~e ~ to show ~e
effecm of placemem of fill h ~e fl~way D~ge along Grapev~e Creek from approx~ately 110 feet
upstream to approx~tely 1,120 feet ups~em of Moore Road and excavation h ~e fl~way along
Grapev~e Creek ~om approx~ately 110 feet upstrem to approx~ately 620 feet upstrem of M~re
Road. In addition, ~is request ~cluded ~ u~ated hydraulic ~lysis ~at ~co~rated more derailed
topographic ~omfion to refl~t ex~t~g wate~h~ conditiom ~ong Gra~vhe Creek ~om M~re Road
to approx~ately 2,~ feet upstrem. ~is request follows up on a Conditio~l ~er of Map Rev~ion
issued on June 3, 1998.
All data required to complete our review of ~is request were submined wi~ le~ers ~om Mr. Wright.
We have complet~ o~ review of ~e sub~ ~m ~d ~e fl~ dam sho~ on ~e effectNe ~. We
have revised ~e ~ to m~i~ ~e flo~pla~ bounda~ del~eatiom of ~e flo~ havhg a 1-percem
ch~ce of being eq~led or exceeded ~ ~y given year ~e flood) along Grapevhe Creek ~om M~re
Road to approx~ately 2,~ feet ups~e~. ~ a result of ~e m~ificatiom, ~e wid~ of ~e Speci~
Flood Hazard Area (SFHA), ~e ~ea ~t would be ~dated by ~e b~e fl~, ~d ~e water-surface
elevatiom for Gra~v~e Creek ~cre~ ~ some are~ and decre~ed ~ o~er are~. ~e fl~ profile
and base flo~ elevatiom were not revved became of scale l~imtiom. No ~able structures are
affected by ~e incre~es ~ S~A wide. ~e m~ificatiom are shown on ~e enclos~ ~omted copy
of FI~ Panel(s) ~10 E. ~ ~er of Map Revision (LOMR) hereby revhes ~e above-referenced
panel(s) of ~e effective ~ ~ted April 15, 1994.
~e m~ificatiom are effectNe ~ of ~e date shown above. The map p~el(s) ~ listed above ~d ~
m~ifi~ by ~h leuer w~l ~ ~ for ~1 fl~ ~ce ~licies ~d renew~s ~u~ for your co~.
A review of ~e dete~tion ~de by ~ LO~ and ~y reques~ to alter ~is dete~i~tion should ~
made wi~ 30 days. ~y re~t to ~ter ~e detemtion must ~ b~ on ~ienfific or tec~cal dam.
We are preparing a revved F~ aM FI~ Imurance Study (FIS) report for Dall~ Coun~ ~ our
counwwide fo~at; ~erefore, we will not physically revise and republish ~e FI~ and FIS repo~ for
your community to incorporate the modifications made by this LOMR at this time. Preliminary copies of
the countywide FIRM and FIS report, which will present information from the effective FIRMs and FIS
repons for your community and other incorporated communities in Dallas County, will be distributed for
review in summer 1999. In order to avoid delays in processing, we will not incorporate the modifications
made by this LOMR into the preliminary countywide FIRM. However, we will incorporate these
modifications into the countywide FIRM and FIS report before they become effective.
This LOMR is based on minimum floodplain management criteria established under the NFIP. Your
community is responsible for approving all floodplain development, and for ensuring all necessary permits
required by Federal or State law have been received. State, county, and community officials, based on
knowledge of local conditions and in the interest of safety, may set higher standards for construction in the
SFHA. If the State, county, or community has adopted more restrictive or comprehensive floodplain
management criteria, these criteria take precedence over the minimum NFIP criteria.
The basis of this LOMR is, in whole or in part, a channel-modification project. NFIP regulations, as cited
in Paragraph 60.3Co)(7), require that communities ensure that the flood-carrying capacity within the altered
or relocated portion of any watercourse is maintained. This provision is incorporated into your
community's existing floodplain management regulations. Consequently, the ultimate responsibility for
maintenance of the modified channel rests with your community.
Because this LOMR will not be printed and distributed to primary users, such as local insurance agents and
mortgage lenders, your community will serve as a repository for these new data. We encourage you to
disseminate the information reflected by this LOMR throughout the community, so that interested persons,
such as property owners, local insurance agents, and mortgage lenders, may benefit from the information.
We also encourage you to prepare a related article for publication in your community's local newspaper.
This article should describe the changes that have been made and the assistance that officials of your
community will give to interested persons by providing these data and interpreting the NFIP maps.
This determination has been made pursuant to Section 206 of the Flood Disaster Protection Act of 1973
(Public Law 93-234) and is in accordance with the National Flood Insurance Act of 1968, as amended
(Title XIII of the Housing and Urban Development Act of 1968, Public Law 90-448), 42 U.S.C.
40014128, and 44 CFR Part 65. Pursuant to Section 1361 of the National Flood Insurance Act of 1968,
as amended, communities participating in the NFIP are required to adopt and enforce floodplain
management regulations that meet or exceed minimum NFIP criteria. These criteria are the minimum and
do not supersede any State or local requirements of a more stringent nature. This includes adoption of the
effective FIRM to which the regulations apply and the modifications made by this LOMR. Our records
show that your community has met this requirement.
A Consultation Coordination Officer (CCO) has been designated to assist your community. The CCO will
be the primary liaison between your community and FEMA. For information regarding your CCO, please
contact:
Mr. Frank Pagano
Director, Mitigation Division
Federal Emergency Management Agency, Region VI
Federal Regional Center, Room 206
800 North Loop 288
Denton, Texas 76201-3698
(940) 898-5127
3
FEMA makes flood insurance available in participating communities; in addition, we encourage
communities to develop their own loss reduction and prevention programs. Our Project Impact initiative,
developed by FEMA Director James Lee Witt, seeks to focus the energy of businesses, citizens, and
communities in the United States on the importance of reducing their susceptibility to the impact of all
natural disasters, including flo(xls, hurricanes, severe storms, earthquakes, and wildfires. Natural hazard
mitigation is most effective when it is planned for and implemented at the local level, by the entities who
are most knowledgeable of local conditions and whose economic stability and safety are at stake. For your
information, we are enclosing a Project Impact Fact Sheet. For additional information on Project Impact,
please visit our Web site at www,fema.gov.
If you have any questions regarding floodplain management regulations for your community or the NFIP
in general, please contact the CCO for your community at the telephone number cited above. If you have
any technical questions regarding this LOMR, please contact Mr. Alan Johnson of our staff in Washington,
DC, either by telephone at (202) 646-~3 or by facsimile at (202) 646-4596.
Sincerely,
ct Engineer For: Matthew B. Miller, P.E., Chief
.H..a~a. rd.s S~ranch Hazards Study Branch
Mitigation Dtrectorate Mitigation Directorate
Enclosure(s)
cc: Mr. Kenneth Griffin, P.E. ~//
Director of Engineering
City of Coppell
Mr. Robert L. Wright, P.E.
Vice President
Needham Wright Engineers, Inc.
h ~. ZONE
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'~~ ZO N E X , ..~ .... : ......... ._:.
. ~ . ~ ~. ~ ~':' ~ ZO N E X 198 ~/ SOUTHWESTERN I DALES ~Nn n=~nu ~n.u~,=c '
~ COMMUNI~-FANEL NUMBER
~ ~ · ~80~70 00~0 E
APRIL 15, 1994
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