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HomeMy WebLinkAboutWOODWARD BLUE HOME PROJECT (FORMERLY LINK-N-GREENS) - FDP - FDP130026 - SUBMITTAL DOCUMENTS - ROUND 1 - DRAINAGE REPORT (4)Issue Date: April 16, 2013 Case No.: 13-08-0614R CLOMR-APP NO.: 08069C0979H NO.: 08069C0983H 132942 PT202.BKR.13080614R.H20 104 Page 1 of 6 Proposed Project Location of Proposed Project Fill Placement Excavation/Bank Stabilization Yes Yes Zone AE Zone AE Yes Yes * 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 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 criteria 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 Map Information eXchange (FMIX) toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 847 South Pickett Street, Alexandria, VA 22304. Additional Information about the NFIP is available on the FEMA website at http://www.fema.gov/nfip. Erin E. Cobb, CFM, Program Specialist Engineering Management Branch Federal Insurance and Mitigation Administration Floodway BFEs* BFEs Yes Yes Cache La Poudre River Floodway SUMMARY OF IMPACTS TO FLOOD HAZARD DATA Flooding Source Effective Flooding Increases Decreases IDENTIFIER Link-n-Green Campus Improvement Project APPROXIMATE LATITUDE & LONGITUDE: 40.584, -105.062 SOURCE: USGS QUADRANGLE DATUM: NAD 83 AFFECTED MAP PANELS COMMUNITY NO.: 080102 HYDRAULIC ANALYSIS NEW TOPOGRAPHIC DATA Proposed Flooding Washington, D.C. 20472 Federal Emergency Management Agency FILL EXCAVATION CONDITIONAL LETTER OF MAP REVISION COMMENT DOCUMENT COMMUNITY INFORMATION PROPOSED PROJECT DESCRIPTION BASIS OF CONDITIONAL REQUEST TYPE: FIRM* * FIRM - Flood Insurance Rate Map FLOODWAY From just upstream of Mulberry Street to approximately 1,570 feet downstream of Lincoln Avenue From approximately 1,990 feet downstream to approximately 1,210 feet downstream of Lincoln Avenue, from approximately 1,400 feet upstream to approximately 1,700 feet upstream of Mulberry Street, and from 290 feet upstream to approximately 710 feet upstream of Mulberry Street COMMUNITY City of Fort Collins Larimer County CLOMR-APP NO.: 08069C0983H CONDITIONAL LETTER OF MAP REVISION COMMENT DOCUMENT (CONTINUED) OTHER COMMUNITIES AFFECTED BY THIS CONDITIONAL REQUEST Page 2 of 6 Issue Date: April 16, 2013 Case No.: 13-08-0614R Federal Emergency Management Agency Washington, D.C. 20472 CID Number: 080101 Name: Larimer County, CO TYPE: FIRM* AFFECTED MAP PANELS DATE: May 2, 2012 This comment is based on the flood data presently available. If you have any questions about this document, please contact the FEMA Map Information eXchange (FMIX) toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 847 South Pickett Street, Alexandria, VA 22304. Additional Information about the NFIP is available on the FEMA website at http://www.fema.gov/nfip. Erin E. Cobb, CFM,Program Specialist Engineering Management Branch Federal Insurance and Mitigation Administration 132942 PT202.BKR.13080614R.H20 104 CLOMR-APP BFE Change (feet) Increases due to the proposed project that exceed those permitted under Paragraphs (c)(10) 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 65.12(b) also is necessary before FEMA can issue a Letter of Map Revision when a community proposes to permit encroachments into the effective floodplain/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 of the 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. 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: Page 3 of 6 Issue Date: April 16, 2013 Case No.: 13-08-0614R Federal Emergency Management Agency Washington, D.C. 20472 CONDITIONAL LETTER OF MAP REVISION COMMENT DOCUMENT (CONTINUED) 1.9 1.6 Location of maximum change Approximately 370 feet downstream of Mulberry Street Approximately 360 feet downstream of Lemay Avenue Approximately 3,010 feet upstream of Mulberry Street Approximately 370 feet downstream of Mulberry Street Approximately 3,010 feet upstream of Mulberry Street 1.9 0.4 0.1 2.4 Just downstream of Mulberry Street COMMUNITY INFORMATION Erin E. Cobb, CFM, Program Specialist Engineering Management Branch Federal Insurance and Mitigation Administration 132942 PT202.BKR.13080614R.H20 104 BFE Comparison Table Existing vs. Effective Proposed vs. Existing Maximum increase Maximum decrease Proposed vs. Effective This comment is based on the flood data presently available. If you have any questions about this document, please contact the FEMA Map Information eXchange (FMIX) toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 847 South Pickett Street, Alexandria, VA 22304. Additional Information about the NFIP is available on the FEMA website at http://www.fema.gov/nfip. Maximum increase Maximum decrease Maximum increase Maximum decrease Flooding Source: Cache La Poudre River CLOMR-APP Washington, D.C. 20472 CONDITIONAL LETTER OF MAP REVISION COMMENT DOCUMENT (CONTINUED) COMMUNITY INFORMATION (CONTINUED) DATA REQUIRED 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 FIS 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. • 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 1 must be included. If as-built conditions differ from the proposed plans, please submit new forms, which may 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 10-percent, 2-percent, and 0.2 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. • An annotated copy of the FIRM, at the scale of the effective FIRM, that shows 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 at the downstream and upstream ends of the revised reach • As-built plans, certified by a registered professional engineer, of all proposed project elements This comment is based on the flood data presently available. If you have any questions about this document, please contact the FEMA Map Information eXchange (FMIX) toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 847 South Pickett Street, Alexandria, VA 22304. Additional Information about the NFIP is available on the FEMA website at http://www.fema.gov/nfip. Erin E. Cobb, CFM, Program Specialist Engineering Management Branch Federal Insurance and Mitigation Administration 132942 PT202.BKR.13080614R.H20 104 Page 4 of 6 Issue Date: April 16, 2013 Case No.: 13-08-0614R Federal Emergency Management Agency CLOMR-APP Washington, D.C. 20472 CONDITIONAL LETTER OF MAP REVISION COMMENT DOCUMENT (CONTINUED) COMMUNITY INFORMATION (CONTINUED) This comment is based on the flood data presently available. If you have any questions about this document, please contact the FEMA Map Information eXchange (FMIX) toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 847 South Pickett Street, Alexandria, VA 22304. Additional Information about the NFIP is available on the FEMA website at http://www.fema.gov/nfip. Erin E. Cobb, CFM, Program Specialist Engineering Management Branch Federal Insurance and Mitigation Administration 132942 PT202.BKR.13080614R.H20 104 • A copy of the public notice distributed by your community, 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 notification to property owners who will be affected by any widening/shifting of the base floodplain and/or any BFE increases along Cache La Poudre 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 65.12(b) • 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 notifying it of the modification 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 may 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. 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 forward the payment, along with the revision application, to the following address: LOMC Clearinghouse 847 South Pickett Street Alexandria, VA 22304 After receiving appropriate documentation to show that the project has been 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. Page 5 of 6 Issue Date: April 16, 2013 Case No.: 13-08-0614R Federal Emergency Management Agency CLOMR-APP Washington, D.C. 20472 CONDITIONAL LETTER OF MAP REVISION COMMENT DOCUMENT (CONTINUED) COMMUNITY INFORMATION (CONTINUED) COMMUNITY REMINDERS We have designated a Consultation Coordination Officer (CCO) to assist your community. 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 P.O. Box 25267 Denver, CO 80225-0267 (303) 235-4830 This comment is based on the flood data presently available. If you have any questions about this document, please contact the FEMA Map Information eXchange (FMIX) toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 847 South Pickett Street, Alexandria, VA 22304. Additional Information about the NFIP is available on the FEMA website at http://www.fema.gov/nfip. Erin E. Cobb, CFM, Program Specialist Engineering Management Branch Federal Insurance and Mitigation Administration 132942 PT202.BKR.13080614R.H20 104 Page 6 of 6 Issue Date: April 16, 2013 Case No.: 13-08-0614R Federal Emergency Management Agency Colorado Flooding Source TYPE: FIRM* DATE: May 2, 2012 DATE: May 2, 2012 Cache La Poudre River - from approximately 1,040 feet downstream of Lemay Avenue to approximately 70 feet downstream of Lincoln Avenue Cache La Poudre River FLOODING SOURCE(S) AND REACH DESCRIPTION PROPOSED PROJECT DESCRIPTION