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Home My WebLink About4.0 FEMA Conditional Letter of Map RevisionCERTIFIED MAIL RETURN RECEIPT REQUESTED Federal Emergency Management Agency Washington, D.C. 20472 March 17,2011 IN REPLY REFER TO: Case No.: l0-08-1088R Community Name: Garfield County, CO Community No.: 080205The Honorable John Martin Chairperson, Garfield County Board of Commissioners 108 Eighth Street, Suite 213 Glenwood Springs, CO 81601 Dear Mr. Martin: We are providing our cornments 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 report, Flood Insurance Rate Map, Flood Boundary and Floodway Map for your community. If you have any questions regarding the floodplain management regulations for your community, the 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 Denver, Colorado, at (303) 235-4830, or the FEMA Map Information eXchange (FMIX) toll free at l-87'7-336-2627 (l-877 -FEMA MAP). Additional information about the NFIP is available on our website at http://www.fema.gov/nfip. Sincerely, rt ( David N. Bascom, CFM, Program Specialist Engineering Management Branch Federal Insurance and Mitigation Administration For: Luis Rodriguez, P.E., Chief Engineering Management Branch Federal Insurance and Mitigation Administration List of Enclosures: Conditional Letter of Map Revision Comment Document cc: Mr. Fred Jarman Floodplain Administrator Garfield County Mr. James Brzostowicz, P.E. Associate Drexel, Barrel & Co., Inc. Page 1.of 5 lssue Date: March 17,2011 Case No.: 10-08-1088R CLOMR.APP Federal Emergency Management Agency Washington, D.C. 20472 CONDITIONAL LETTER OF MAP REVISION GOMMENT DOGUMENT COMMUNITY INFORMATION PROPOSED PROJECT DESCRIPTION BASIS OF CONDITIONAL REQUEST COMMUNITY Garfield County (Unincorporated Areas) Colorado BRIDGE HYDRAULIC ANALYSIS FLOODWAY NEW TOPOGRAPHIC DATA COMMUNITY NO.: 080205 TDENTIFIER TCI Lane'Ranch APPROXIMATE LATITUDE & LONGITUDE: 39.401, -107.150 SOURGE: Other DATUM: NAD 83 AFFECTED MAP PANELS TYPE: FIRM- TYPE: FBFM-- NO.: 08020518808 NO.: 0802051880 DATE: January 3, '1986 DATE: January 3, 1986 - FIRM - Flood lnsurance Rate Map* FBFM - Flood Boundary and Floodway Map--- FHBM - Flood Hazard Boundary Map FLOODING SOURCE(S) AND REACH DESCRIPTION Roaring Fork River - from approximately 2,180 feet upstream to approximately 4,650 feet upstream of County Road 100 PROPOSED PROJECT DESCRIPTION Flooding Source Roaring Fork River Proposed Project Pedestrian Bridge Location of Proposed Project Approximately 3,970 feet upstream of County Road 100 SUMMARY OF IMPACTS TO FLOOD HAZARD DATA Flooding Source Roaring Fork River Effective Flooding Zone A1-A30 Floodway BFES- Zone C Proposed Flooding lncreases Yes Yes Yes YeS Decreases Yes Yes Yes Yes Zone A1-A30 Floodway BFEs Zone C * BFEs - Base (1-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 flood hazard information shown on the effective National Flood lnsurance 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. lf the State/Commonwealth, county, or community has adopted more restrictive or comprehensive floodplain management criteria, these criteria take precedence over the minimum NFIP criteria. This comment is based on the flood data presently available. lf you have any questions about this document, please contact the FEMA Map lnformation eXchange (FMIX) toll freeatl-877-336-2627(1-877-FEMAI/AP)orbyletteraddressedtotheLON/CClearinghouse,7390CocaColaDrive,Suite204,Hanover,MD21076. Additional lnformation about the NFIP is available on the FEMA website at http://www.fema.gov/nfip. ,/'o{ {,J /i -!.i'-111i**- David N. Bascom, CFM, Program Specialist Engineering Management Branch Federal lnsurance and Mitigation Administration 1224il PI202.BKR.1 0081 088R.H15 1 04 Page.2 of 5 lssue Date: March17,2011 Gase No.: 10-08-1088R CLOMR-APP Federal Emergency Management Agency Washington, D.C. 20472 CONDITIONAL LETTER OF MAP REVISION coMMENT DOGUMENT (CONTTNUED) COMMUNlTY 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). Ifthe effective model does not provide enough detail to evaluate the effects ofthe 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 BFE Comparison Table Flooding Source: Roaring Fork River BFE Change (feet)of maximum change Existing vs. Effective Maximum increase 0.4 2,980 feet of Road 100 Maximum decrease 0.1 4,650 feet tream of Road 100 Proposed vs. Existing Maximum increase 0.6 4,020 feet of Road 100 Maximum decrease 0.1 2,580 feet upstream ofCounty Road 100 Proposed vs. Effective Maximum increase 0.4 2,980 feet of Road 100 Maximum decrease 0.1 4,650 feet of Road 100 Increases due to the proposed project that exceed those permitted under Paragraphs (c)(l 0) or (d)(3) of Section 60.3 of the NFIP regulations must adhere to Section 65.12 of the NFIP regulations. With this request, your community has complied with all requirements of Paragraph 65.12(a) of the NFIP regulations. Compliance with Paragraph 65. I 2(b) also is necessary before FEMA can issue a Letter of Map Revision when a community proposes to permit encroachments into the effective floodplain and regulatory floodway that will cause BFE increases in excess of those permitted under Paragraph 60.3(d)(3). 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 ofthe altered or relocated watercourse, including any related appurtenances such as bridges, culverts, and other drainage structures, rests with your 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. lf you have any questions about this document, please contact the FEMA Map lnformation exchange (FMIX) toll freeatl-877-336-2627(1-877-FEMAMAP)orbyletteraddressedtotheLOMCClearinghouse,T390CocaColaDrive,Suite2O4,Ha^over,MD21076. Additional lnformation about the NFIP is available on the FEMA website at http://www.fema.gov/nfip. ffil fr,**.*- David N. Bascom, CFM, Program Specialist Engineering Management Branch Federal lnsurance and Mitigation Administration 122451 Pr202.BKR.1 0081088R.H1 5 104 Page 3.of 5 lssue Date: March 17, 2011 Gase No.: 10-08-1088R CLOMR-APP Federal Emergency Management Agency Washington, D.C. 20472 GONDITIONAL LETTER OF MAP REVISION coMMENT DOCUMENT (CONTTNUED) GOMMUNTTY TNFORMATTON (CONTTNU ED) DATA REQUTRED 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, FBFM, and FIS report. If the project is built as proposed and the data below are received, a revision to the FIRM, FBFM, and FIS report would be warranted. . Form 1, entitled "Overview & Concurrence Form." 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 I must be included. If as-built conditions differ from the proposed plans, please submit new forms, which can be accessed at http://www.fema.gov/plan/prevent/fhm/dl_mt-2.shtm, or annotated copies of the previously submitted forms showing the revised information. . Hydraulic analyses, for as-built conditions, of the base flood; the lO-percent, 2-percent, and0.2 percent annual chance floods; and the regulatory floodway, together with a topographic work map showing the revised 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. . Annotated copies of the FIRM and FBFM, at the scale of the effective FIRM and FBFM, that show the revised floodplain and floodway boundary delineations shown on the submitted work map and how they tie into the floodplain and floodway boundary delineations shown on the current effective FIRM and FBFM at the downstream and upstream ends ofthe revised reach . As-built plans, certified by a registered professional engineer, ofall proposed project elements . A copy of the public notice distributed by your cornmunity, stating its intent to revise the regulatory floodway, 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/shifting of the base floodplain and/or any BFE increases along Roaring Fork River . Evidence that your community has, prior to approval of the proposed encroachment, adopted floodplain management ordinances that incorporate the increased BFEs and revised floodway boundary delineations to reflect the post-project conditions, as stated in Paragraph 6s.12(b) David N. Bascom, CFM, Program Specialist Engineering Management Branch Federal lnsurance and Mitigation Administration 122451 Pr202.BKR.1 0081088R.H1 5 104 This comment is based on the flood data presently available. lf you have any questions about this document, please contact the FEMA Map lnformation eXchange (FMIX) toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 7390 Coca Cola Drive, Suite 204, Hanover, MD 21076. Additional lnformation about the NFIP is available on the FEMA website at http://www.fema.gov/nfip. ,ffi"1 $***,r,-- Page 4,of 5 lssue Date: March 17, 201'l Case No.: 10-08-1088R CLOMR-APP Federal Emergency Management Agency Washington, D.C. 20472 CONDITIONAL LETTER OF MAP REVISION coMMENT DOCUMENT (CONTINUED) coMMUNTTY TNFORMATION (CONTTNUED) . A letter stating that your community will adopt and enforce the modified regulatory floodway, OR, if the State/Commonwealth has jurisdiction over either the regulatory floodway or its adoption by your community, a copy of your community's letter to the appropriate State/Commonwealth agency notifuing it of the modihcation to the regulatory floodway and a copy of the letter from that agency stating its approval of the modification . FEMA's fee schedule for reviewing and processing requests for conditional and final modifications to published flood information and maps can be accessed at http://www.fema.gov/plan/prevent/fhm/frm_fees.shtm. The fee at the time of the map revision submittal must be received before we can begin processing the request. Payrnent 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 forward the payment, along with the revision application, to the following address: LOMC Clearinghouse 7390 Coca Cola Drive, Suite 204 Hanover, Maryland 21076 After receiving appropriate documentation to show that the project has been completed, FEMA will initiate a revision to the FIRM, FBFM, and FIS report. Because the BFEs will change as a result of the project, a90-day appeal period will be initiated for the revision, during which community officials and interested persons may appeal the revised BFEs based on scientific or technical data. This comment is based on the flood data presently available. lf you have any questions about this document, please contact the FEMA Map lnformation eXchange (FMIX) toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 7390 Coca Cola Drive, Suite 204, Hanover, MD 21076. Additional lnformation about the NFIP is available on the FEMA website at http://www.fema.gov/nfip. David N. Bascom, CFM, Program Specialist Engineering Management Branch Federal lnsurance and Mitigation Administration 122451 PT202.BKR.1 0081088R.H15 104 Eage Spf 5 lssue Date: March'17, 2011 Case No.: 10-08-1088R CLOMR-APP Federal Emergency Management Agency Washington, D.C. 20472 CONDITIONAL LETTER OF MAP REVISION coMMENT DOCUMENT (CONTINUED) coMMUNrrY TNFORMATION (CONTINUED) COMMUNITY REMINDERS We have designated a Consultation Coordination Officer (CCO) to assist your cornmunity. The CCO will be the primary liaison between your community and FEMA. For information regarding your CCO, please contact: Ms. Jeanine D. Petterson Director, Mitigation Division Federal Emergency Management Agency, Region VIII Denver Federal Center, Building 710 Post Office Box25267 Denver, CO 80225-0267 (303) 23s-4830 This comment is based on the flood data presently available. lf you have any questions about this document, please contact the FEMA Map lnformation eXchange (FMIX) toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 7390 Coca Cola Drive, Suite 204, Hanover, MD 21076. Additional lnformation about the NFIP is available on the FEMA website at http://www.fema.gov/nfip. ffi t i***- David N. Bascom, CFM, Program Specialist Engineering Management Branch Federal lnsurance and Mitigation Administration 122451 PI202.8KR.10081088R.H1 5 104