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Home My WebLink About20222824.tiffFederal Emergency Management Agency CERTIFIED MAIL RETURN RECEIPT REQUESTED Scott James Chair, Weld County Board of Commissioners 1150 O Street Greeley, CO 80632 Dear Scott James: Washington, D.C. 20472 September 19, 2022 IN REPLY REFER TO: Case No.: 22-08-0286P Follows Conditional Case No.: 21-08-0141R Community Name: Weld County, CO Community No.: 080266 Effective Date of This Revision: February 6, 2023 RECEIVED SEP 3 0 2022 WELD COUNTY COMMISSIONERS The Flood Insurance Study (FIS) report and Flood Insurance Rate Map (FIRM) for your community have been revised by this Letter of Map Revision (LOMR). Please use the enclosed annotated map panels revised by this LOMR for floodplain management purposes and for all flood insurance policies and renewals issued in your community. Additional documents are enclosed that provide information regarding this LOMR. Please see the List of Enclosures below to determine which documents are included. Other enclosures specific to this request may be included as referenced in the Determination Document. If you have any questions regarding floodplain management regulations for your community or the National Flood Insurance Program (NFIP) in general, please contact the Consultation Coordination Officer for your community. If you have any technical questions regarding this LOMR, please contact the Director, Mitigation Division of the Department of Homeland Security's Federal Emergency Management Agency (FEMA) in Denver, Colorado, at (303)235 4830, or the FEMA Mapping and Insurance eXchange toll free at 1-877-336-2627 (t-877-FEMA MAP). Additional information about the NFIP is available on our website at httr:i'v v vv.f.::ia,0N r'tlood ; nsurance. Sincerely, Patrick "Rick" F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration List of Enclosures: Letter of Map Revision Determination Document Annotated Flood Insurance Rate Map Annotated Flood Insurance Study Report cc: The Honorable Paul Rennemeyer Aaron Cvar, P.E. Kevin Houck, P.E., CFM Mayor, Town of Windsor Senior Engineer Chief, Watershed and Flood Protection Northern Engineering Services, Inc. Section Tom Parko Colorado Water Conservation Board Director of Planning Services Terri Fead, P.E., CFM Weld County Floodplain Mapping Coordinator Colorado Water Conservation Board Omar Herrera, P.E. Deputy Director of Engineering Marta Blanco Castaflo, GISP, CFM Town of Windsor Flood Mapping Program Assistant CoKtiwn :Co.+: on S Colorado Water Conservation Board Iofiaf 2 CC:OEHCRI�PL(tphitJ/DA), PnJ4=Mo) /ER/cH/O to/le/2. 2022-2824 Page 1 of 6 I Issue Date: September 19, 2022 I Effective Date: February 6, 2023 I Case No.: 22-08-0286P I L0MR-APP Follows Conditional Case No.: 21-08-0141R OtipA�4, 'QT Federal Emergency Management Agency ok,:it: Washington, D.C. 20472 S'l9ND SVC LETTER OF MAP REVISION DETERMINATION DOCUMENT COMMUNITY AND REVISION INFORMATION PROJECT DESCRIPTION BASIS OF REQUEST COMMUNITY Weld County Colorado (Unincorporated Areas) CULVERT FILL 1D HYDRAULIC ANALYSIS UPDATED TOPOGRAPHIC DATA COMMUNITY NO.: 080266 IDENTIFIER Village East Subdivision, 8th Filing APPROXIMATE LATITUDE AND LONGITUDE: 40.483, -104.872 SOURCE: Other DATUM: NAD 83 ANNOTATED MAPPING ENCLOSURES ANNOTATED STUDY ENCLOSURES TYPE: FIRM* NO.: 08123C1482E DATE: January 20, 2016 TYPE: FIRM NO.: 08123C1501E DATE January 20, 2016 DATE OF EFFECTIVE FLOOD INSURANCE STUDY: January 20, 2016 PROFILES: 59P AND 60P Enclosures reflect changes to flooding sources affected by this revision. * FIRM - Flood Insurance Rate Map FLOODING SOURCES AND REVISED REACHES See Page 2 for Additional Flooding Sources John Law — West Tributary - from approximately 150 feet downstream of Great Western Railroad to approximately 1,830 feet upstream of State Highway 392 John Law Ditch - from approximately 120 feet downstream of State Highway 392 to approximately 1,280 feet upstream of the divergence of Greeley Canal No. 2 SUMMARY OF REVISIONS Flooding Source Effective Flooding Revised Flooding Increases Decreases John Law — West Tributary BFEs* BFEs YES NONE Zone AE Zone AE NONE YES Zone AH Zone AH NONE YES John Law Ditch BFEs BFEs YES YES Zone AH Zone AE YES NONE * BFEs - Base Flood Elevations DETERMINATION This document provides the determination from the Department of Homeland Security's Federal Emergency Management Agency (FEMA) regarding a request for a Letter of Map Revision (LOMR) for the area described above. Using the information submitted, we have determined that a revision to the flood hazards depicted in the Flood Insurance Study (FIS) report and/or National Flood Insurance Program (NFIP) map is warranted. This document revises the effective NFIP map, as indicated in the attached documentation. Please use the enclosed annotated map panels revised by this L0MR for floodplain management purposes and for all flood insurance policies and renewals in your community. This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FEMA Mapping and Insurance eXchange 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 our website at https://www.fema.gov/flood-insurance. ��+e=cam/ Patrick "Rick" F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration 22.08-5286P 102 -I -A -C Page 2 of 6 Issue Date: September 19, 2022 I Effective Date: February 6, 2023 I Case No.: 22-08-0286P I LOMR-APP Oi4AI ,11T\FA, h• ° 4 t`1 ND StiGJ ° ` Federal Emergency Management Agency Washington, D.C. 20472 LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) OTHER FLOODING SOURCES AFFECTED BY THIS REVISION FLOODING SOURCES AND REVISED REACHES Greeley Canal No. 2 - from just downstream of State Highway 392 to the divergence from John Law Ditch John Law - SH 392 Overflow - from the confluence with John Law - West Tributary to the divergence from John Law Ditch SUMMARY OF REVISIONS Flooding Source Greeley Canal No. 2 John Law - SH 392 Overflow Effective Flooding Revised Flooding Increases Decreases Zone A Zone A YES NONE BFEs BFEs NONE YES Zone AE Zone AE YES NONE Zone AH Zone AH NONE YES This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FEMA Mapping and Insurance eXchange toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the L0MC Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandria, VA 22304-6426. Additional Information about the NFIP is available on our website at https://www.fema.gov/flood-insurance. Patrick "Rick" F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration 22-08-0286P 102 -I -A -C Page 3 of 6 I Issue Date: September 19, 2022 I Effective Date: February 6, 2023 I Case No.: 22-08-0286P I LOMR-APP 04A� r\Fb �T ° Federal Emergency Management Agency Washington, D.C. 20472 .114/D SVG LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) OTHER COMMUNITIES AFFECTED BY THIS REVISION CID Number: 080264 Name: Town of Windsor, Colorado AFFECTED MAP PANELS AFFECTED PORTIONS OF THE FLOOD INSURANCE STUDY REPORT TYPE: FIRM NO.: 08123C1482E DATE: January 20, 2016 TYPE: FIRM NO.: 08123C1501 E DATE January 20, 2016 DATE OF EFFECTIVE FLOOD INSURANCE STUDY: January 20, 2016 PROFILES: 59P AND 60P This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FENA Mapping and Insurance eXchange toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the L0MC Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandria, VA 22304-6426. Additional Information about the NFIP is available on our website at https://www.fema.gov/flood-insurance. Patrick °Rick" F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration 22-08-0286P 102 -I -A -C Page 4 of 6 Issue Date: September 19, 2022 I Effective Date: February 6, 2023 I Case No.: 22-08-0286P I LOMR-APP OtiyA��4, r° Federal Emergency Management Agency 4 Washington, D.C. 20472 t9ND sir LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) COMMUNITY INFORMATION APPLICABLE NFIP REGULATIONS/COMMUNITY OBLIGATION We have made this determination pursuant to Section 206 of the Flood Disaster Protection Act of 1973 (P.L. 93-234) and 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. Pursuant to Section 1361 of the National Flood Insurance Act of 1968, as amended, communities participating in the NFIP are required to adopt and enforce floodplain management regulations that meet or exceed NFIP criteria. These criteria, including adoption of the FIS report and FIRM, and the modifications made by this LOMR, are the minimum requirements for continued NFIP participation and do not supersede more stringent State/Commonwealth or local requirements to which the regulations apply. NFIP regulations Subparagraph 60.3(bX7) 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. COMMUNITY REMINDERS We based this determination on the 1 -percent -annual -chance flood discharges computed in the FIS for your community without considering subsequent changes in watershed characteristics that could increase flood discharges. Future development of projects upstream could cause increased flood discharges, which could cause increased flood hazards. A comprehensive restudy of your community's flood hazards would consider the cumulative effects of development on flood discharges subsequent to the publication of the FIS report for your community and could, therefore, establish greater flood hazards in this area. Your community must regulate all proposed floodplain development and ensure that permits required by Federal and/or State/Commonwealth law have been obtained. State/Commonwealth or community officials, based on knowledge of local conditions and in the interest of safety, may set higher standards for construction or may limit development in floodplain areas. If your State/Commonwealth or community has adopted more restrictive or comprehensive floodplain management criteria, those criteria take precedence over the minimum NFIP requirements. We will not print and distribute this LOMR to primary users, such as local insurance agents or mortgage lenders; instead, the community will serve as a repository for the new data. We encourage you to disseminate the information in this LOMR by preparing a news release for publication in your community's newspaper that describes the revision and explains how your community will provide the data and help interpret the NFIP maps. In that way, interested persons, such as property owners, insurance agents, and mortgage lenders, can benefit from the information. This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FEMA Mapping and Insurance eXchange 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 our website at https://www.fema.gov/flood-insurance. Patrick "Rick" F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration 22.08-0210P 102 -I -A -C Page 5 of 6 I Issue Date: September 19, 2022 I Effective Date: February 6, 2023 I Case No.: 22-08-0286P I LOMR-APP °' Federal Emergency Management Agency ° 4 Washington, D.C. 20472 11ND StiGJ LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) This revision has met our criteria for removing an area from the 1 -percent -annual -chance floodplain to reflect the placement of fill. However, we encourage you to require that the lowest adjacent grade and lowest floor (including basement) of any structure placed within the subject area be elevated to or above the Base (1 -percent -annual -chance) Flood Elevation. 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: 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 STATUS OF THE COMMUNITY NFIP MAPS We are processing a revised FIRM and FIS report for Weld County, Colorado, and Incorporated Areas; therefore, we will not physically revise and republish the FIRM for your community to incorporate the modifications made by this LOMR at this time. Preliminary copies of the FIRM and FIS report were submitted to your community for review on March 22, 2022. We will either incorporate the modifications made by this LOMR into the preliminary FIRM and FIS report before they become effective or reissue the LOMR on the new FIRM and FIS report. The changes in the BFEs are minimal and do not warrant updated Flood Profiles for John Law - West Tributary, John Law - SH 392 Overflow, and Greeley Canal No. 2; therefore, the Flood Profiles are not revised in this LOMR. This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FEMA Mapping and Insurance eXchange 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 our website at https://www.fema.gov/flood-insurance. Patrick "Rick" F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration 22.08-0286P 102 -I -A -C Page 6 of 6 I Issue Date: September 19, 2022 I Effective Date: February 6, 2023 I Case No.: 22-08-0286P I LOMR-APP O�4ART4 t Federal Emergency Management Agency Washington, D.C. 20472 l9ND StiGJ LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) PUBLIC NOTIFICATION OF REVISION A notice of changes will be published in the Federal Register. This information also will be published in your local newspaper on or about the dates listed below, and through FEMA's Flood Hazard Mapping website at https://www.floodmaps.fema.gov/fhm./bfe_status/bfe main.asp LOCAL NEWSPAPER Name: Greeley Tribune Dates: September 30, 2022 and October 7, 2022 Within 90 days of the second publication in the local newspaper, any interested party may request that we reconsider this determination. Any request for reconsideration must be based on scientific or technical data. Therefore, this letter will be effective only after the 90 -day appeal period has elapsed and we have resolved any appeals that we receive during this appeal period. Until this LOMR is effective, the revised flood hazard determination presented in this LOMR may be changed. This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FEMA Mapping and Insurance eXchange 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 our website at https://www.ferna.gov/flood-insurance. Patrick "Rick" F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration 22-08-0286P 102 -I -A -C 4795 4795 N a, REVISED >- REACH Q w S REFLECT LO > _ D Z} 4790 4790 o 0 Q o Q 0 i I _ w cr u_m 0 w w a. o < 12 w0 can 0 Q w F - co z0 Z U) oa w LLl 4785 O _I > U 4785 Q LL - , 2 w z J 0 4W DI 4780 I I ID PI - 4780 z _ `! _ O O -� LL _ O z 4775 ' 4 4775 H - W a Z-------------- O - Z 2 LL 0 ft r 4770 ff w -x-4770 > - -a- o> w w w REACH Cn IILOMR REVISED BY _ w EFFECTIVE - 1 / J O APRIL 30, 2018 L_ ' z 4765 O `r• 4765 z W O IOQ for i W O ct 5 -- Q 4760 ° - 4760 Q LEGEND �. Z z I— § o D moo° Z O ft 1% ANNUAL CHANCE FLOOD W (9 O O O STREAM BED A B -� A CROSS SECTION LOCAHON W -� z W w 0 Q Q CC W O W LL 8,300 8,800 9,300 9,800 10,300 10,800 11,300 11,800 12,300 12,800 13,300 13,800 14,300 14,800 STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CACHE LA POUDRE RIVER 59P 4810 I 4810 REVISED Icy REACH / ES REFLECT LOMR _ 4805 r la- � 0 O 4805 0 wJ / � zz Q W >-W 0 C Z W C D J > w 4800 40 4800 - oU rY O 1 ID PRI U 4795 cc cc a 1 6 4795 O O L > z 4790 4790 H I W U_ Z l j O 4785 Q > W 4785 J W 4780 O ._ 4780 z w Q W I- O < 4775 U 11.1 w CC w }" Q I- O 4775 LEGEND w Z Z I- o > D U O 2 Z U 1% ANNUAL CHANCE FLOOD W _ O OU 4770 STREAM BED E IFI • S H 0\\\,�j1/4 A � CROSS SECTION LOCATION W J Z W W Q Q Q LI W 0 w I.I 14,800 15,300 15,800 16,300 16,800 17,300 17,800 18,300 18,800 19,300 19,800 STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CACHE LA POUDRE RIVER 60P GRtANITI= CT 3170000 FT GARDEN DR TECHNOLOGY CIR CADEM` Y CT I f i JOINS PANEL 1484 NOTE. MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 6 NORTH AND RANGE 67 WEST. Culvert _O SPECIAL FLOOD uA7ARn ARFGS OTHER AREAS OF FLOOD HAZARD SCALE Weld County Unincorporated Areas 080266 1420000 FT ZONE AH 4781.2 ZONE AE 4780.0 John Law Ditch Culvert Without Base Flood Elevation (BFE) Zone A. V. A99 With BFE or Depth *neAE, A0. AH, VE, AR Regulatory Floodwav 0.2 % Annual Chance Flood Hazard, Areas of 1% annual chance flood with average depth less than one foot or with drainage areas of less than one square mile Future Conditions 1% Annual Chance Flood Hazard ... , Area with Reduced Flood Risk due to Levee See Notes. «ad, Map Projection: Universal Transverse MercatorNAD 1983 UTM Zone 13N Western Hemisphere: Vertical Datum: NAVD r,• 1 inch = 500 feet 62.5 125 Imagery Source: NAIP 20" 1,000 Feet ■ Meters 250 NATIONAL FLOOD INSURANCE PROGRAM FLOOD INSURANCE RATE MAP WELD COUNTY, COLORADO and Incorporated Areas PANEL 1482 OF 2250 Panel Contains COMMUNITY NUMBER WELD COUNTY 04026f WINDSOR, TOWN OF Ur.0264 PANEL SUFFIX :482 F 1482 E REVISED TO REFLECT LOMR EFFECTIVE: February 6, 2023 VERSION NUMBER 1.1.1.0 MAP NUMBER 08123C1482E EFFECTIVE DATE JANUARY 20, 2016 AREA REVISED BY LOMR EFFECTIVE APRIL 30, 2018 John Law Ditch NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 6 NORTH AND RANGE 67 WEST. 1 -PERCENT -ANNUAL FLOOD DISCHARGE CONTAINED IN CULVERT John Law - SH392 OVej: f low John Law Ditch Town of Windsor 080264 @ulvert 4799.2 4793.8 4792.3 ZONE AE 47-91-1 Ai C o units Ares ZONE AE 4772 SPECIAL FLOOD HAZARD AREAS OTHER AREAS OF FLOOD HAZARD LIMIT OF Without Base Flood Elevation (BEE) Zone A. V. A99 With BFE or Depth Zone AE, AO, AN, VE, AR Regulatory Floodway 0.2 % Annual Chance Flood Hazard, Areas of 1% annual chance flood with average depth less than one foot or with drainage areas of less than one square mile ; Future Conditions 1% Annual Chance Flood Hazard zonex 47: Area with Reduced Flood Risk due to Levee See Notes. , SCALE N Map Projection: Universal Transverse MercaiorNAD 1983 UTM Zone 13N Western Hemisphere; Vertica Datum: NAVD 88 1 inch = 500 feet 0 0 250 62.5 125 500 nac�n 2015 1:6,000 1,000 Meters 250 Feet 4tt nsurance Program NATIONAL FLOOD INSURANCE PROGRAM FLOOD INSURANCE RATE MAP WELD COUNTY, COLORADO and Incorporated Areas PANEL 1.501 OF 2250 Panel Contains: COMMUNITY NUMBER PANEL SUFFIX SEVERANCE, TOWN OF WELD COUNTY WINDSOR. TOWN OF 080317 080266 080264 1501 1501 1501 E E E REVISED TO REFLECT LOMR EFFECTIVE: February 6, 2023 VERSION NUMBER 1.1.1.0 MAP NUMBER 08123C1501E EFFECTIVE DATE JANUARY 20, 2016 Hello