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Villages C P3&4-CS 920908Federal Emergency Management Agency Washington, D.C. 20472 CERTIFIED MAlL RETURN RECEIPT REQUESTED The Honorable Mark Wolfe Mayor, City of Coppell P.O. Box 478 255 Parkway Boulevard Coppell, Texas 75019 · - SEP 8 1992 Case No.: 92-06-037K Re: Denton Creek/Villages of Coppell, Phases 3 and & Community: City of Coppell, Texas Community No.: 480170 Dear Mayor Wolfe: This is in response to a letter dated April 10, 1992, from Mr. Kenneth Griffin, P.E., City Engineer, City of Coppell, regarding a request for a Conditional Letter of Map Revision (CLOMR) to the effective Flood Insurance Rate Map (FIRM) for the City of Coppell, Texas, dated Octobar 16, 1991. The CLOMR request represents a revision to the effective lO0-year floodplain and e£fec~£ve floodway boundaries along Denton Creek and Elm Fork of Trinity River. The request is based on proposed fill between Cross Sections 104880 and 105500 along Elm Fork of Trinity River, and between Cross Sections 18440 and 19930 along Denton Creek. All of the data necessary to process this request were received with a letter dated April 10, 1992, from Mr. Griffin; a letter dated June 5, 1992, from Mr. Robert Porter, Project ManaRer, Tipton Engineering, Inc.; and a letter dated June 30, 1992, from Mr. Richard Bovas, P.E., Vice President, Tipton Engineering, Inc. Fees necessary to process this CLOMR (a total of $1,470) have been received. We have completed our review of the submitted data with regard to the data used to produce an ongoing restudy of the Flood Insurance Study for the City of Coppell. We believe that a revi~inn to h-~o~odplain and floodway would 'be warranted after the ongoing restudy becomes effective and if the ~rojosed~ project is constructed as shown on the plans ~ 'Exhibit B, Reclamation Plan, Villages of Coppell, Phases 3 and 4, Ci~-f C6~-~e~l, Texas," prepared by Don A. Tipton, ~ dated Jan~ry 1991, ~ d~ in the repor~ entitled ~Elm Folk Trlni~y River and ~nton Creek, Ci~y of Coppell, Dallas Coun~y~ Texas~ Floodplain Recl-~Clon S~udy, Villages of Coppell, Phases 3 and 4~ Reques~ for Condlclonal ~," prepared by ~n A. Tip,on, Inc. Floodplain and floodway boundaries would be revised accordlnl ~o ~hose sho~ on ~he s~e plan. Upon completion of this project, please submxt an .as-built grad~_~~ ~t_ areal certlflC~i~ih~fillplic~-d l~-(l~-e current-l'y effectxve ftoodplaxE~ a result of rhis pro~ecr is compacred ro 95 ~rcen~ of uhe ~xi~ d~si~y obtainable with the Standard Proctor Test me~hod issued by che ~rican Society for Tesring and Harerials (A~ Standard ~698)~ and a sCabitlCy analysis for ~he proposed Cabion ~all alon~ Deforest Road between Cross Sect{ohs 18440 and 19930. We will make a final determination on revising the FILM upon receipt of the data listed above. Please note that the City of__Coppell is undergoing a citywide restudy and that the study has been appealed. The appeal does not affect ~he p%~]~9~0f Denton Creek and Elm For~f Trinity River associa~ w~th th{s project, It is anticipated that ~e restudy~l become effective in ]993. Because this request zs based on tiooding infor~atio~ contained in the restcdy~-~ finai ma~ revision fo~ro]ect can only be processed after the restudy becomes effective. Please note that the Federal Emergency Management Agency (FEMA) nas developed detailed application and certification forms for use in requesting revisions or amendments to NFIP maps. These forms will be used for all requests received by FEMA on or after October 1, 1992. These forms highlight technical considerations in a fashion that facilitates an ef~ici~nt review; therefore, use of these forms prior to October 1 is strongly recommended. Applications are available for Letter of Map Amendment and Letter of Map Revision Based on Fill requests. Application forms for ail other revision requests should be available after September 1. If you have any questions, please call Mr. Jim LeGrotte, Chief, Natural and Technological Hazards Division, FEMA, Region VI, in Denton, Texas at (817) 898-5162, or Mr. Alan Johnson of my staff in Washington, D.C., at (202) 646-3403. Sincerely, William R. Locke Chief, Risk Studies Div,sio, Federal Insurance Administration cc: Mr. Ron Morrison Morrison Hydrology/Engineering Inc. ~nneth Griffin, P.E. ,,,~ity Engineer Mr. Don A. Tipton Don A. Tipton, Inc.