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FS8901-CS 900828Federal Emergency Management Washington, D.C. 20472 Mr. Err A. Meyer, P.E. Nathan D. Maier Consulting Engineers, Inc. Three North Park 8800 North Central Expressway Suite 300 Dallas, Texas 75231 Case No.: 90-06-43R Community: City of Coppell, Dallas County, Texas Community No.: 480170 Dear Mr. Meyer: This is in further responsc to thc July 3, 1990 request for a conditional Letter of Map Revision (LOMR) for the HRWS Tract in the City of Coppell, Dallas County, Texas. The proposed project consists of the placement of fill west of the Elm Fork of the Trinity River and north of the St. Louis and Southwestern Railroad and Belt Line Road. With the conditional LOMR request, we received a report dated August 1989, prepared by Nathan D. Maier Consulting Engineers, Inc. In this report, the ineffective flow area used in the HEC-2 hydraulic backwater models for the Elm Fork of the Trinity River upstream of the St. Louis and Southwestern Railroad and Belt Line Road was reanalyzed. Based on the reanalyzed ineffective flow area, a revised floodway for the Elm Fork of the Trinity River was delineated in the project area. The conditional LOMR was requested for placement of fill in a portion of the HRWS Tract that would be outside of the revised floodway delineated in the report. In a July 25, 1990 telephone conversation with Matt Miller of my Headquarters staff, you agreed to withdraw your request for a conditional LOMR. Rather, this case will be reviewed as a revision to the Elm Fork of the Trinity River floodway without regard to the proposed fill. If the floodway revision is determined to be appropriate, it will then be incorporated into an ongoing F~ovd Insurance Rate Map revision to the Flood Insurance c~-.~.. (FIS) and ~ (FIRM) for the City of Coppell. The revision of the FIS and FIRM currently ........ c~mm~nity streams underway ~= based ~ a complete restudy of =~ the ~ ,, , ,'s prepared by Kimley-Horn and Associates, Inc. Please note that at this time a detailed technical review of the submitted analyses supporting the floodway revision for the HRWS Tract has not been undertaken. Since we are no longer reviewing the proposed fill, fees are not required~ therefore, a check in the amount of $150.00 will be sent directly from the u.s. Treasury as a refund of the partial payment of the initial fee you submitted on behalf of HRWS Investments with a July 17, 1990 letter. If the check is not received within 30 days of the date of this letter, please contact Anne Flowers, of our Headquarters staff at (202) 646-2748. Should you have any questions regarding this matter, please do not hesitate to contact the Chief, Natural and Technological Hazards Division of the Federal Emergency ManaEement Agency in Denton, Texas, at (817) 898-9127 or Matthew B. Miller of our Headquarters staff in Washin§ton, D.C., at (202) 6&6-3&61. Sincerely, Enclosure cc: The Honorable Mark Wolfe, Mayor of the City of Coppell Ms. M. Shohre Daneshmand, P.E., Acting City Engineer of Coppell Mr. Ronald W. Morrison, P.E., Kimley-Horn and Associates, Inc.