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Gibbs Sta DCEC-CS 930927 DAN M. DOWDEY AND ASSOCIATES, CIVIL ENGINEERS 16250 DALLAS PARKWAY SUITE 100 DALLAS, TEXAS 75248 (214) 931-0694 FAX (214) 931-9538 September 27, 1993 ~ ~ Mr. Ken Griffin, P.E. ~~ ~ City Engineer City of Coppell 255 Parkway Boulevard Coppell, Texas 75019 Re: Gibb's Station As-built Topography Dear Mr. Griffin: We are aware that the City has been discussing the revision of the October 16, 1991 FEMA Map. Our project, Gibb's Station is currently being completed in accordance with that effective map. The developer of Gibb's Station, Gibb's Station, Ltd., employed the services of Dallas Aerial Survey, Inc. to fly the area again so that information that FEMA is reviewing is consistent and so that the City will have accurate data for future use. The limits of the flood plain are consistent with the grading plans that you have previously approved. We feel that providing this aerial confirmation in addition to the construction plans will assist the City at some point in obtaining a revised FEMA maps. Attached are sheets D-2, D-3, E-3, and the disk that was used to create the plat. If you have any questions, please contact me. Sincerely, William A. Anderson, P.E. WAA; j rb DAI'~ M. DOWDEY AND ASSOCIATES, C. CIVIL ENGINEERS 16250 DALLAS PARKWAY SUITE 100 DALLAS, TE~S 75248 (214) 931-0694 FAX (214) 931-9538 August 10, 1993 ~il~lq~_ ~~ ~%~n~ Mr. Kenneth Griffin, P.E. ~%~--~ ~ ~, /' City Engineer ~ C~y of Coppell 2SS ~arkwa~ Boulevard Coppell, Texas 75019 RE: Gibb's Station Flood Plan Determination Dear Ken: I recently reviewed the latest effort in correctin~ the FE~ Map for Coppell. It appears that the City is proposing to adopt the December 18, 1991 version of the map in the vicinity of Gibb's Station. Our development was based on the October 16, 1991 map and was verified as bein~ more consistent with that flood plain limit. We have recently completed the final excavation phase of our plans. To provide the most consistent results, the Developer is in the process of employing Dallas Aerial Surveys, Inc. to refly the area and regenerate "As-Built" data. We feel that this would more satisfactorily assist FE~ with providing accurate data. If you have any questions, please contact me. Sincerely, William A. Anderson w~/sg cc: Hammond Heath, Heath & Knight