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FIRM-910506 (2)4G`G�GY Mgn9G� I ! ZF7 L ELt �'z,..� cC Federal Emergency Management Agency d a Washington, D.C. 20472 MAY 8 1991 0 o MAY 6 1991 CERTIFIED MAIL RETURN RECEIPT REQUESTED The Honorable Mark Wolfe Mayor of the City of Coppell Dallas County P.O. Box 478 Coppell, Texas 75019 Dear Mayor Wolfe: (115I) Map Panels Affected: FIRM: 480170 0005 D In a letter dated February 9, 1989, you were notified of proposed modified flood elevation determinations affecting the Flood Insurance Rate Map (FIRM) and Flood Insurance Study (FIS) for the City of Coppell, Dallas County, Texas. The 90 -day appeal period that was initiated on April 12, 1989, when the Federal Emergency Management Agency (FEMA) published a notification of proposed modification of the Base (100 -year) Flood Elevations (BFEs) for the City of Coppell, in the Coppell Gazette, has elapsed. Prior to our February 9, 1989 notification, your community requested, in a letter dated January 12, 1989, that FEMA revise the September 22, 1988 pre- liminary FIRM and FIS to include updated corporate limits information and the results of an untitled technical report prepared by Kimley -Horn and Associates, Inc., Consulting Engineers for the City of Coppell. The corporate limits, as shown on the FIRM, have been revised as requested by your com- munity. However, as stated in our March 7, 1991 letter to you, due to a lack of supporting data, we are unable to incorporate the data prepared by Kimley- Horn and Associates, Inc. Should the necessary supporting data become available in the future, we will incorporate any necessary changes under Part 65 of the National Flood Insurance Program (NFIP) regulations. The enclosed proof copies of the FIRM and FIS reflect the necessary changes to the corporate limits of your community. In addition, in the area of the annexed portions of the City of Lewisville, the 100 -year floodplain and FEMA- designated floodway for Denton Creek have been narrowed on the north overbank to bring the Coppell FIRM into agreement with the more up -to -date Lewisville FIRM. Please note that the BFEs for Denton Creek are unaffected by these changes and remain as they were shown on the September 22, 1988 preliminary FIRM and FIS for the City of Coppell. The modified flood elevations as reflected on the proof copies of the FIRM and FIS are effective as of October 16, 1991, and revise the FIRM which was in effect prior to that date. For rating purposes, the community number and new suffix code for panels being revised are indicated on the maps and must be used for all new policies and renewals. 4 The modifications are pursuant to Section 206 of the Flood Disaster Protection Act of 1973 (P.L. 93 -234) and are in accordance with the National Flood Insurance Act of 1968, as amended, (Title XIII of the Housing and Urban Development Act of 1968, P.L. 90 -448) 42 U.S.C. 4001 -4128, and 44 CFR Part 65. FEMA has developed criteria for floodplain management as required under the above - mentioned Acts of 1968 and 1973. As a condition of continued eligi- bility in the NFIP, your community must remain in compliance with Section 60.3 (d) of the NFIP regulations by amending or supplementing the existing floodplain management measures in force to reflect data shown on the latest FIRM modifications within six months of the effective date of the revised FIRM. The modified base flood elevations and flood insurance zone designa- tions will be used to calculate the appropriate flood insurance premium rates for all new buildings and their contents and for the second layer of insurance coverage on existing buildings and their contents. Communities that fail to enact or amend the necessary floodplain management regulations to reflect the data shown on the latest FIRM are subject to suspension from participation in the program and the prohibitions contained in Section 202(a) of the 1973 Act as amended. If you have any questions or concerns about whether your existing ordinances will be fully compliant with NFIP requirements when the new maps become effective, you should contact our Regional office at Federal Regional Center, 800 North Loop 288, Denton, Texas 76201 -3698, (817) 898 -5127. Sincerely, l � l34s.�tl 9_ William R. Locke Chief, Risk Studies Division Federal Insurance Administration cc: Ms. M. Shohre Daneshmand, P.E., City Engineer Mr. Ronald W. Morrison, P.E., Morrison Hydrology /Engineering, Inc. FEDERAL EMERGENCY MANAGEMENT AGENCY FEDERAL INSURANCE ADMINISTRATION MAY - 8 1991 (44 CFR Part 67) Final Flood Elevation Determinations AGENCY: Federal Emergency Management Agency ACTION: Final rule. 6118 uf'u►:i Modified base (100 -year) flood elevations are determined for the com- munities listed below. These modified base (100 -year) flood elevations are the basis for the floodplain management measures that the community is required to either adopt or show evidence of being already in effect in order to qualify or remain qualified for participation in the National Flood Insurance Program (NFIP). EFFECTIVE DATE: The date of issuance of the Flood Insurance Rate Map (FIRM) showing modified base (100 - year) flood elevations, for the community. This date may be obtained by contacting the office where the maps are available for inspec- tion indicated on the table below. ADDRESSES: See table below. FOR FURTHER INFORMATION CONTACT: William R. Locke Chief, Risk Studies Division Federal Insurance. Administration Federal Emergency Management Agency Washington, DC 20472 (202) 646 -2754 E SUPPLEMENTARY INFORMATION: The Federal Emergency Management Agency gives notice of the final deter- minations of flood elevations for each community listed. Proposed base flood elevations or proposed modified base flood elevations have been published in the Federal Register for each community listed. This final rule is issued in accordance with Section 110 of the Flood Disaster Protection Act of 1968 (Title XIII of the Housing and Urban Devel- opment Act of 1968 (Pub. L. 90- 448)), 42 U.S.C. 4001 -4128, and 44 CFR Part 67. An opportunity for the community or individuals to appeal proposed deter- mination to or through the community for a period of ninety (90) days has been provided. The Agency has developed criteria for floodplain management in flood -prone areas in accordance with 44 CFR Part 60. Pursuant to the provisions of 5 USC 605(b), the Administrator, to whom authority has been delegated by the Director, Federal Emergency Management Agency, hereby certifies for reasons set out in the proposed rule that the final flood elevation determinations, if promulgated, will not have a sig- nificant economic impact on a substantial number of small entities. Also, this rule is not a major rule under terms of Executive Order 12291, so no regulatory analyses have been prepared. It does not involve any collection of information for purposes of the Paperwork Reduction Act. List of Subjects in 44 CFR Part 67. Flood Insurance, Flood Plains. The authority citation for Part 67 continues to read as follows: Authority: 42 U.S.C. 4001 et seq., Reorganization Plan No. 3 of 1978, E.O. 12127. 3 Interested lessees and owners of real property are encouraged to review the proof Flood Insurance Study and Flood Insurance Rate Map available at the address cited below for each community. The modified base (100 -year) flood elevations are finalized in the com- munities listed below. Elevations at selected locations in each community are shown. Any appeals of the proposed base flood elevations which were received have been resolved by the Agency. #Depth in feet above ground. State *Elevation in City /Town /County feet (NGVD) Source of Flooding and Location Modified Texas Coppell (City), Dallas County (FEMA Docket No. 6948) Grapevine Creek: Confluence with Elm Fork of the Trinity River *439 Approximately 750 feet downstream of Beltline Road *455 Denton Creek: Confluence with Elm Fork of the Trinity River *446 Approximately 2,800 feet upstream of Denton Tap Road *462 Elm Fork of the Trinity River: At the confluence of Grapevine Creek *439 At Interstate Highway 35E *452 Cottonwood Branch: Confluence with Denton Creek *458 Upstream side of Denton Tap Road *461 Maps available for inspection at the City Hall Engineering Division, 255 Parkway Boulevard, Coppell, Texas.