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22-06-0957R CLOMR-E. Sandstone/Legacy PlaceFederal Emergency Management Agency CERTIFIED MAIL RETURN RECEIPT REQUESTED The Honorable Jae Hurst Mayor, City of Van Buren 1003 Broadway Street Van Buren, AR 72956 Dear Mayor Hwst: Washington, D.C. 20412 November 29, 2022 IN REPLY REFER TO: Case No.: 22-06-0957R Community Name: City of Van Buren, AR Community No.: 050053 l04 We u'e providing our comments with the enclosed Conditional Letter of Map Revision (CLOMR) on a proposed project within your community that, if constructed as proposed, could revise the effective Flood Insurance Study (FIS) report and Flood Insurance Rate Map (FIRM) for your community. If you have any questions regarding the floodplain management regulations for your community, Ore National Flood Insurance Program (NFIP) in general, or technical questions regarding this CLOMR, please contact the Director, Mitigation Division of the Federal Emergency Management Agency (FEMA) Regional Office in Denton, Texas, at (940) 898-5127, or the FEMA Mapping and Insurance eXchange (FMIX) toll free at 1-877-336-2627 (1-877-FEMA MAP). Additional information about the NFIP is available on our website at https://www.fema.gov/flood-insurance. Sincerely, Patrick "Rick" F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration Enclosure: Conditional Letter of Map Revision Coxninent Document cc: The Honorable Dennis Gilstrap Crawfm•d County Judge David Marlin, CFM Floodplain Administrator City of Van Buren Veronica Robins Director of Emergency Management Crawford County Lee Beshoner, P.E., CFM Branch Manager/Water Resources Engineer FTN Associates, Ltd, Page 1 of 6 Issue Date: November 29, 2022 Case No.: 22.06.095711 CLOMR-APP �FPA T Federal Emergency Management Agency � (Z@11VD Washington, D.C. 20472 CONDITIONAL LETTER OF MAP REVISION COMMENT DOCUMENT COMMUNITY INFORMATION PROPOSED PROJECT DESCRIPTION BASIS OF CONDITIONAL REQUEST DETENTION BASIN HYDROLOGIC ANALYSIS City of Van Buren ID HYDRAULIC ANALYSIS Crawford County FLOODWAY Arkansas UPDATED TOPOGRAPHIC DATA COMMUNITY COMMUNITY NO.: 050053 Louemma Creek Tributary CLOMR APPROXIMATE LATITUDE AND LONGITUDE: 35.474,-94.351 IDENTIFIER SOURCE: OTHER DATUM: NAD83 AFFECTED MAP PANELS TYPE: FIRM' NO.: 05033CO380H DATE: March 16, 2009 ' FIRM - Flood Insurance Rate Map FLOODING SOURCE(S) AND REACH DESCRIPTION Louemma Creek Tributary- from approximately 1,280 feet upstream of East Sandstone Street to approximately 2,670 feel upstream of East Sandstone Street PROPOSED PROJECT DESCRIPTION Flooding Source Proposed Project Location of Proposed Project Louemma Creek Tributary New Detention Basin Approximaleely 2,670 feet upstream of East Sandstone Street SUMMARY OF IMPACTS TO FLOOD HAZARD DATA Flooding Source Effective Flooding Proposed Flooding Increases Decreases Louemma Creek Tributary Zone AE Zone AE Yes Yes BFEs` BFEs Yes None Floodway Floodway Yes Yes • BFEs- Base (I -percent -annual -chance) Flood Elevations COMMENT This document provides the Federal Emergency Management Agency's (FEMA's) comment regarding a request for a CLOMR for the project described above. This document is not a final determination; it only provides our comment on the proposed project in relation to the good hazard Information shown on the effective National Flood Insurance Program (NFIP) map. We reviewed the submitted data and the data used to prepare the effective Flood hazard information for your community and determined that the proposed project meets the minimum floodplain management criteria of the NFIP. Your community is responsible for approving all floodplain development and for ensuring that all permits required by Federal or State/Commonwealth law have been received. State/Commonwealth, county, and community officials, based on their knowledge of local conditions and in the interest of safety, may set higher standards for construction in the Special Flood Hazard Area (SFHA), the area subject to Inundation by the base flood). If the State/Commonwealth, county, or community has adopted more restrictive or comprehensive floodplain management criteria, these Critelli] take precedence over the minimum NFIP criteria. This comment Is based on the flood data presently available. If you have any questions about this document, please contact the FEMA Mapping and Insurance eXchange (FMIX)toll free all-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandria, VA 22304- 6426. Additional Information about the NFIP Is available FE�MAAww—eebbsskee at https:/Aw .fema.gov/Oood insurance. (on/the Patrick "Rick' F. Sacbibil, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration 22-064957R 104 Page 2 of 6 Issue Date: November 29, 2022 Case No.: 22-O6A957R CLOMR-APP Q�ypx 1At�.. 0 Federal Emergency Management Agency Washington, D.C. 20472 o�FGrrD s@�Ja~ CONDITIONAL FETTER OF MAP REVISION COMMENT DOCUMENT (CONTINUED) OTHER COMMUNITIES AFFECTED BY THIS CONDITIONAL REQUEST CID Number: 050428 Name: Unincorporated Areas of Crawford County, Arkansas AFFECTED MAP PANELS TYPE: FIRM' NO.: 06033C0380H DATE: March 16, 2009 This comment Is based on the flood data presently available. If you have any questions about this document, please contact the FEMA Mapping and Insurance eXchange (FMIX)toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 3601 Eisenhower Avenue; Suite 500, Alexandria, VA 22304- 6426. Additional Information about the NFIP is available on the F�EvMA—wvaele to at hitps:/Aw .fema.gov/flood-insurance. Patrick Rick" F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration 22-06-0957R 104 Page 3 of 6 Issue Date: November 29, 2022 Case No.: 22,064957R CLOMR-APP OF Federal Emergency Management Agency °PA\E Lfi Washington, D.C. 20472 P�qN CONDITIONAL LETTER OF MAP REVISION COMMENT DOCUMENT (CONTINUED) COMMUNITY INFORMATION To determine the changes in flood hazards that will be caused by the proposed project, we compared the hydraulic modeling reflecting the proposed project (referred to as the proposed conditions model) to the hydraulic modeling used to prepare the Flood Insurance Study (FIS) (referred to as the effective model). If the effective model does not provide enough detail to evaluate the effects of the proposed project, an existing conditions model must be developed to provide this detail. This existing conditions model is then compared to the effective model and the proposed conditions model to differentiate the increases or decreases in flood hazards caused by more detailed modeling from the increases or decreases in flood hazards that will be caused by the proposed project. The table below shows the changes in the BFEs: BEE Comparison Table Flooding Source: Louermna Creek BEE Change (feet) Location of maximum change Tributary Existing vs. Maximum increase 5.1 Approximately 1,890 feel upstream of East Sandstone Street Maximumdecrene None N/A Effective Proposed vs. Maximum increase None N/A Existing Maximum decrease None N/A Proposed vs. Maximum increase 5.1 Approximately 11890 feet upstream of East Sandstone Street Effective Maximum decrease I None INIA NFIP regulations Subparagraph 60.3(b)(7) requires communities to 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 ordinances; therefore, responsibility for maintenance of the altered or relocated watercourse, including any relatedappurtenances such as bridges, culverts, and other drainage structures, rests with yaw community. We may request that your community submit a description and schedule of maintenance activities necessary to ensure this requirement. This comment Is based on the flood data presently available. If you have any questions about this document, please contact the FEMA Mapping and Insurance exchange (FMIX) tall free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandria, VA 22304-6426, Additional Information about the NFIP Is available on the(FEEMMA websyite e�thtttpps/:/hJ .fe.fema.gov/flood4nsurance. Patrick "Rick' F. Sacblbit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration 22-06-0957R 104 Page 4 of 6 Issue Date: November 29, 2022 Case No.: 220fi-095711 CLOMR-APP QECA'Fk y. r o Federal Emergency Management Agency UDSSS� Washington, D.C. 20472 qN I- COMMENT DOCUMENT C O ..,i T D COMMUNITY INFORMPsTION (CONTINUED) DATA REQUIRhD FOR FOLLOW-UP LOMR Upon completion of the project, your community must submit the data listed below and request that we make a final determination on revising the effective FIRM and PIS report. If the project is built as proposed and the data below are received, a revision to the FIRM and FIS report would be warranted. o Detailed application and certification forms must be used for requesting final revisions to the maps. Therefore, when the map revision request for the area covered by this letter is submitted, Form 1, entitled "Overview and Concurrence Form," must be included. A copy of this form may be accessed at https://www.fema.gov/flood-maps/change-your-flood-zone/paper-application-forms/mt-2. The detailed application and certification forms listed below may be required if as -built conditions differ from the proposed plans. If required, please submit new forms, which may be accessed at https://www.fema.gov/flood-maps/change-your-flood-zondpaper-applicatio forms/rat-2, or annotated copies of the previously submitted forms showing the revised information. Form 2, entitled "Riverine Hydrology and Hydraulics Form." Hydraulic analyses for as -built conditions of the base flood and the regulatory floodway must be submitted with Form 2. Form 3, entitled "Riverine Structures Form." a A certified topographic work map showing the revised and effective base floodplain and floodway boundaries. Please ensure that the revised information ties in with the current effective information at the downstream and upstream ends of the revised reach. An annotated copy of the FIRM, at the scale of the effective FIRM, that shows the revised base floodplain and floodway boundary delineations shown on the submitted work map and how they fie -in to the base floodplain and floodway boundary delineations shown on the current effective FIRM at the downstream and upstream ends of the revised reach. • As -built plans, certified by a registered Professional Engineer, of all proposed project elements. • A copy of the public notice distributed by your community stating its intent to revise the regulatory Roadway, or a signed statement by your community that it has notified all affected property owners and affected adjacent jurisdictions. • Documentation of the individual legal notices sent to property owners who will be affected by any widening or shifting of the base floodplain and/or any BFE increases along Louemma Creek Tributary. mart Is based on the Flood data presently available. IF you have any questions aheut this document, please contact the FEMA Mapping and Insurance eXchange tall free at 1-977-338-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 3801 Elsenhovrer Avenue, Suite 500, Alexandria, VA 22304-6426. rat Information shout the NFIP Is available on the FEMA websita at trips://vrvw.fema.govlFlood-insurance. Patrick "Rick" F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration 22-06-0957R Page 5 of 6 Issue Date: November 29, 2022 Case No.: 22-06-0957R CLOMR-APP pF-YMl7'4F J. O Federal Emergency Management Agency Washington, D.C. 20472 � IND 5E� CONDITIONAL LETTER OF MAP REVISION COMMENT DOCUMENT (CONTINUED) COMMUNITY INFORMATION (CONTINUED) DATA REQUIRED FOR FOLLOW-UP LOMR (continued) • FEMA's fee schedule for reviewing and processing requests for conditional and final modifications to published flood information and maps may be accessed at https:/Avww.fema.gov/flood-maps/change-your-flood-zone/status/flood-map-related-fees. The fee at the time of the map revision submittal must be received before we can begin processing the request. Payment of this fee can be made through a check or money order, made payable in U.S. funds to the National Flood Insurance Program, or by credit card (Visa or MasterCard only). Please cithci forward the payment, along with the revision application, to the following address: LOMC Clearinghouse Attention: LOMR Manager 3601 Eisenhower Avenue, Suite 500 Alexandria, VA 22304-6426 of submit the LOMR using the Online LOMC portal at: https://hazards.fema.gov/femaportal/onlinclomc/signin After receiving appropriate documentation to show that the project hasbeen completed, FEMA will initiate a revision to the FIRM and FIS report. Because the flood hazard information (i.e., base flood elevations, base flood depths, SFHAs, zone designations, and/or regulatory floodways) will change as a result of the project, a 90-day appeal period will be initiated for the revision, during which community officials and interested persons may appeal the revised flood hazard information based on scientific or technical data. This comment is based on the Flood data presently available. If you have any questions about this document, please contact the FEMA Mapping and Insurance exchange (FMIX) toll free at 1-877336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandria, VA 22304-6426. Additional Information about the NAP is available on the(FFMMA we�b�a�im at y hhUps:ll.fema.gov/flood-insurance. v ��� Patrick "Rick" F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration 22-06-0957R 104 Page 6 of 6 Issue Date: November 29, 2022 Case No.: 22.060957R CLOMR-APP OEVAR I ARI . y, T ° Federal Emergency Management Agency Washington, D.C. 20472 ��ND SF,G.. CONDITIONAL LETTER OF MAP REVISION COMMENT DOCUMENT (CONTINUED) C011tlMUNITY INFORMATION (CONTINUA®} COMMUNITY REMINDERS We have designated a Consultafion Coordination Officer (CCO) to assist your community. The CCO will be the primazy liaison between your community and FEMA. For information regarding your CCO, please contact: Sandy I{eefe Director, Mitigation Division Federal Emergency Management Agency, Region VI Federal Regional Center, Room 202 800 North Loop 288 Denton, TX 76209 (940) 898-5127 lent Is hased an the flood data presently available. If you have any questions about this document, please contact the FEMA Mapping and Insurance eXchange free at 1-677336-2627 (i-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 3601 Eisenhower Avenue, Sui[e 500, Alexandria, VA 22304-6426. Inforrnation about the NFIP is available on the FEMA website at https:l/vrvrx.fema.gov/hood-Insurance. _ Patrick "Rick" F. Sachihit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration 22-98-0957R