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Home My WebLink About20202975.tiffI Federal Emergency Management Agency RECEIVED CERTIFIED MAIL RETURN RECEIPT REQUESTED Mr. Mike Freeman Commissioners Chair, Weld County 1150 O Street P.O. Box 758 Greeley, CO 80632 Dear Mr. Freeman: Washington, D.C. 20472 February 19, 2021 MAR 0 4 2021 WELD COUNTY IN REPLY REFER TO: COMMISSIONERS Case No.: 19-08-1058P Follows Conditional Case No.: 17-08-1597R Community Name: Weld County, CO Community No.: 080266 FIRM Panel Affected: 08123C1684E, 08123C1703E 116 In a Letter of Map Revision (LOMR) dated September 10, 2020, you were notified of proposed flood hazard determinations affecting the Flood Insurance Rate Map (FIRM) and Flood Insurance Study (FIS) report for the Unincorporated Areas of Weld County, Colorado. These determinations were for Little Thompson River - from approximately 240 feet above confluence with Big Thompson River to approximately 1,920 feet upstream of State Highway 60; SH60 Split - from approximately 175 feet upstream of S. Kathleen Avenue to approximately 2,940 feet upstream of S. Kathleen Avenue; and Railroad Split - from approximately 320 feet upstream of N. Josephine Avenue to approximately 2,360 feet upstream of N. Josephine Avenue. The 90 -day appeal period that was initiated on October 2, 2020, when the Department of Homeland Security's Federal Emergency Management Agency (FEMA) published a notice of proposed Flood Hazard Determinations in The Greeley Tribune has elapsed. FEMA received no valid requests for changes to the modified flood hazard information. Therefore, the modified flood hazard information for your community that became effective on February 1, 2021, remains valid and revises the FIRM and FIS report that were in effect prior to that date. The modifications are pursuant to Section 206 of the Flood Disaster Protection Act of 1973 (Public Law 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, Public Law 90-448), 42 U.S.C. 4001-4128, and 44 CFR Part 65. The community number(s) and suffix code(s) are unaffected by this revision. The community number and appropriate suffix code as shown above will be used by the National Flood Insurance Program (NFIP) for all flood insurance policies and renewals issued for your community. FEMA has developed criteria for floodplain management as required under the above -mentioned Acts of 1968 and 1973. To continue participation in the NFIP, your community must use the modified flood hazard information to carry out the floodplain management regulations for the NFIP. The modified flood hazard information will also be used to calculate the appropriate flood insurance premium rates for all new buildings and their contents and for the second layer of insurance on existing buildings and their contents. 0..6 (vine) onica+ionS 03/10(01 cc,1oE-m(RR), PLc re), PwC3-nnlERIC N/po) 03/04 ! Q l 0oao - Dq -1 s A 2 If you have any questions regarding the necessary floodplain management measures for your community or the NFIP in general, please contact the Mitigation Division Director, FEMA Region VIII, in Denver, Colorado, either by telephone at (303) 235-4800, or in writing at Building 710, Box 25267, Denver, Colorado 80225-0267. If you have any questions regarding the LOMR, the proposed flood hazard determinations, or mapping issues in general, please call the FEMA Mapping and Insurance eXchange, toll free, at (877) 336-2627 (877-FEMA MAP). Sincerely, Patrick "Rick" F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration cc: The Honorable Elizabeth Austin Mayor Town of Milliken Mr. Tom Parko Jr., P.E. Director of Plarming Services Weld County Mr. Troy Sparker Floodplain Manager Town of Milliken Mr. Doug Mahan, CFM State NFIP Coordinator Colorado Water Conservation Board Mr. Charlton Kennedy, P.E. Civil Engineer AECOM Federal Emergency Management Agency CERTIFIED MAIL RETURN RECEIPT REQUESTED Mr. Mike Freeman Commissioners Chair, Weld County 1150 O Street P.O. Box 758 Greeley, CO 80632 Dear Mr. Freeman: Washington, D.C. 20472 RECEIVED September 10, 2020 IN REPLY REFER TO: Case No.: 19-08-1058P Follows Conditional Case No.: 17-08-1597R Community Name: Weld County, CO Community No.: 080266 Effective Date of This Revision: February 1, 2021 SEP 2 8 2020 WELD COUNTY COMMISSIONERS The Flood Insurance Study Report and Flood Insurance Rate Map 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 which provide information regarding this LOMR. Please see the List of Enclosures below to determine which documents are included. Other attachments 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 (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 List of Enclosures: cc: Letter of Map Revision Determination Document Annotated Flood Insurance Rate Map Annotated Flood Insurance Study Report The Honorable Elizabeth Austin Mayor Town of Milliken Mr. Tom Parko Jr., P.E. Director of Planning Services Weld County Mr. Troy Sparker Milliken Floodplain Manager Town of Milliken Mr. Doug Mahan, CFM State NFIP Coordinator Colorado Water Conservation Board Mr. Charlton Kennedy, P.E. Civil Engineer AECOM GO NINA u n : Co.+ : a/1 S 1O/QS/2o cc:OEK(R PLCTP> 2020-2975 IN.J(3-K/ER%H/Do) O9 /29/20 Page 1 of 6 Issue Date: September 10, 2020 Effective Date: February 1,2021 Case No.: 19-08-1058P LOMB -APP °4-�19 OtQA�ttv4, ND se Follows Conditional Case No.: 17-08-1597R Federal Emergency Management Agency � Washington, D.C. 20472 LETTER OF MAP REVISION DETERMINATION DOCUMENT COMMUNITYAND REVISION INFORMATION PROJECT DESCRIPTION BASIS OF REQUEST COMMUNITY Weld County Colorado (Unincorporated Areas) BRIDGE CHANNELIZATION FILL HYDRAULIC ANALYSIS HYDROLOGIC ANALYSIS FLOODWAY UPDATED TOPOGRAPHIC DATA UPDATE COMMUNITY NO.: 080266 IDENTIFIER SH 60 & SH 257 Bridge Replacement & LTR Channelization Project APPROXIMATE LATITUDE & LONGITUDE: 40.335, -104.867 SOURCE: Other DATUM: WGS 84 ANNOTATED MAPPING ENCLOSURES ANNOTATED STUDY ENCLOSURES TYPE: FIRM* NO.: 08123C1684E DATE: January 20, 2016 TYPE: FIRM NO.: 08123C1703E DATE: January 20, 2016 DATE OF EFFECTIVE FLOOD INSURANCE STUDY: January 20, 2016 PROFILE(S): 78P, 78P(a)(NEW), 79P, 79P(a)(NEW), 145P(NEW) AND 146P(NEW) FLOODWAY DATA TABLE: 5 SUMMARY OF DISCHARGES TABLE: 2 Enclosures reflect changes to flooding sources affected by this revision. * FIRM - Flood Insurance Rate Map FLOCI3ING SOURCE(S) & REVISED REACH(ES) See Page 2 for Additional Flooding Sources Little Thompson River - From approximately 240 feet above confluence with Big Thompson River to approximately 1,920 feet upstream of State Highway 60. SUMMARY OF REVISIONS Flooding Source Effective Flooding Revised Flooding Increases Decreases Little Thompson River Zone AE Zone AE YES NONE Floodway Floodway YES NONE Zone X (shaded) Zone X (shaded) YES NONE BFEs* BFEs YES YES Zone A Zone A YES YES Zone A Zone AE YES NONE Zone A Zone X (Shaded) YES NONE No Floodway Floodway YES NONE No BFEs BFEs YES NONE * BFEs — Base (1 -percent -annual -chance) 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 LOMR 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. Tie 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.femaaov/flood-insurance. V '7 Patrick "Rick" F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration 19-08-1058P 102 -I -A -C Page 2 of 6 Issue Date: September 10, 2020 Effective Date: February 1, 2021 Case No.: 19-08-1058P LOMR-APP Federal Emergency Management Agency Washington, D.C. 20472 O�YA��F ° % o1�J4 19ND StiG LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) OTHER FLOODING SOURCES AFFECTED BY THIS REVISION FLOODING SOURCE(S) & REVISED REACH(ES) SH60 Split - From approximately 175 feet upstream of S. Kathleen Avenue to approximately 2,940 feet upstream of S. Kathleen Avenue. Railroad Split -From approximately 320 feet upstream of N. Josephine Avenue to approximately 2,360 feet upstream of N. Josephine Avenue. SUMMARY OF REVISIONS Flooding Source SH60 Split Railroad Split Effective Flooding Revised Flooding Increases Decreases Zone AE Zone AE YES NONE Zone X (Shaded) Zone X (Shaded) YES NONE Zone X (Unshaded) Zone AE YES NONE Zone X (Unshaded) Zone X (Shaded) YES NONE No Floodway Floodway YES NONE No BFEs BFEs YES NONE Zone X (Unshaded) Zone AE YES NONE Zone X (Unshaded) Zone X (Shaded) YES NONE No Floodway Floodway YES NONE No BFEs BFEs YES NONE This determination is based on the flood data questions about this document, please contact Clearinghouse, 3601 Eisenhower Avenue, Suite https://www.fema.00v/flood-insurance. presently available. The enclosed documents provide additional information regarding this determination. If you have any the FEMA Mapping aid Insurance eXchange toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC 500, Alexandria, VA 22304-6426. Additional Information about the NFIP is available on our website at V '7 Patrick "Rick" F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal. Insurance and Mitigation Administration 19-08-1058P 102 -I -A -C Page 3 of 6 Issue Date: September 10, 2020 Effective Date: February 1, 2021 Case No.: 19-08-1058P LOMR-APP Emergency Management Agency Washington, D.C. 20472 OtiYA�R�A 4,-eN .V/ a Federal s o�D J4E ��9N StiG LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) OTHER COMMUNITIES AFFECTED BY THIS REVISION CID Number: 080187 Name: Town of Milliken, Colorado AFFECTED MAP PANELS AFFECTED PORTIONS OF THE FLOOD INSURANCE STUDY REPORT TYPE: FIRM NO.: 08123C1684E DATE: January20, 2016 TYPE: FIRM NO.: 08123C1703E DATE: January20, 2016 DATE OF EFFECTIVE FLOOD INSURANCE STUDY : January 20, 2016 PROFILE(S): 78P, 78P(a)(NEVV), 79P, 79P(a)(NEW), 145P(NEW)AND 146P(NEW) FLOODWAY DATA TABLE: 5 SUMMARY OF DISCHARGES TABLE: 2 This determination is based on the flood data presently available. The questions about this document, please contact the FEMA Mapping and Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandria, VA httas://www.fema.00v/flood-insurance. enclosed documents provide additional information regarding this determination. If you have any Insurance eXchange toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC 22304-6426. Additional Information about the NFIP is available on our website at V '7 "Rick" F. Sacbibit, P.E., Branch Chief Services Branch Insurance and Mitigation Administration 19-08-1058P 102 -I -A -C Patrick Engineering Federal Page 4 of 6 Issue Date: September 10, 2020 Effective Date: February 1, 2021 Case No.: 19-08-1058P LOMB -APP 0,ORT4 E' 65- °' Federal x °3. o- �1A1VD Emergency Management Agency Washington, D.C. 20472 stc 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. We provide the floodway designation to your community as a tool to regulate floodplain development. Therefore, the floodway revision we have described in this letter, while acceptable to us, must also be acceptable to your community and adopted by appropriate community action, as specified in Paragraph 60.3(d) of the NFIP regulations. 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. COMMUNITY REMINDERS We based this determination on the 1 -percent -annual -chance discharges computed in the submitted hydrologic model. Future development of projects upstream could cause increased discharges, which could cause increased flood hazards. A comprehensive restudy of your community's flood hazards would consider the cumulative effects of development on discharges and could, therefore, indicate that greater flood hazards exist 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 32304-6426. Additional Inforrnation about the NFIP is available on our website at httos://www.femamovalood-insurance. V '7 14/ Patrick"Rick" F. Sacbibit, P:E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration 19-08-1058P 102 -I -A -C Page 5 of 6 Issue Date: September 10, 2020 Effective Date: February 1, 2021 Case No.: 19-08-1058P LOMB -APP Emergency Management Agency Washington, D.C. 20472 O.QA�R1FiD Federal °4. . �j4Iv 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: 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 STATUS OF THE COMMUNITY NFIP MAPS We will not physically revise and republish the FIRM and FIS report for your community to reflect the modifications made by this LOMR at this time. When changes to the previously cited FIRM panel(s) and FIS report warrant physical revision and republication in the future, we will incorporate the modifications made by this LOMR at that time. This determination is based on the flood data presently available. The questions about this document, please contact the FEMA Mapping arid Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandria, VA httos://www.fema.aov/flood-insurance. enclosed documents provide additional information regarding this determination. If you have any Insurance eXchange toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC 22304-6426. Additional Information about the NFIP is available on our website at t! '7 "Rick" F. Sacbibit, P.E., Branch Chief Services Branch Insurance and Mitigation Administration 19-08-1058P 102 -I -A -C Patrick Engineering Federal Page 6 of 6 Issue Date: September 10, 2020 Effective Date: February 1, 2021 Case No.: 19-08-1058P LOMR-APP O�4pr\F Jy'. AIM Federal Emergency Management Agency Washington, D.C. 20472 GO -41 ND St 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: The Greeley Tribune Dates: September 25, 2020 and October 2, 2020 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. Tie 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 httos://www.fema.aov/flood-insurance. V v/ 4/ Patrick "Rick" F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration 19-08-1058P 102 -I -A -C Table 2 - Summary of Discharges (Continued) Revised Data Flooding Source and Location John Law Ditch —WCR 23 Flow Path At Confluence with Cache La Poudre River At River Station 3285 At River Station 3464 At River Station 3938 John Law Ditch — WCR 23 Flow Path (Continued) At River Station 4441 At River Station 4901 At River Station 5818 At River Station 7564 At River Station 8173 At River Station 9327 At River Station 9746 John Law Ditch — West Tributary At River Station 15590 At River Station 17435 John Law Ditch — Whitney Flow Path At Confluence with John Law Ditch — WCR 23 Flow Path Peak Discharges (cfs) Drainage Area 10 -Percent 4 -Percent 2 -Percent 1 -Percent (Sauare Miles) Annual Chance Annual Chance Annual Chance Annual Chance 96 101 163 181 235 521 802 855 805 834 305 665 153 144 0.2 -Percent Annual Chance Little Thompson River At Milliken 196 4,624 7,378 10,638 15,502 31,555 Pumpkin Ridge Split Flow Path At Confluence with Sheep Draw St. Vrain Creek At. State Highway 66 At Approximately 1,000 feet downstream of Weld County Road 13 St. Vrain Creek — Existing Lakes At Confluence with St. Vrain Creek 'Data Not Available 763 5,950 2,307 3,606 16,700 12,85O 16,700 1 1 REVISED TO REFLECT LOMR EFFECTIVE; February 1, 2021 6,579 41,960 Table 2 - Summary of Discharges (Continued) r Revised Data Flooding Source and Location Peak Discharges (cfs) Drainage Area 10 -Percent 4 -Percent 2 -Percent 1 -Percent 0.2 -Percent (Square Miles) Annual Chance Annual Chance Annual Chance Annual Chance Annual Chance Railroad Split At Approximately 845 feet upstream of N. Josephine Avenue SH60 Split At Approximately 2740 feet upstream of S. Kathleen Avenue 69 200 550 760 16 590 2,360 4,650 10,780 'Data Not Available REVISED TO REFLECT LOMR EFFECTIVE: February 1, 2021 Rev' Da red a' FLOODING SOURCE FLOODWAY 1 -PERCENT -ANNUAL -CHANCE FLOOD WATER SURFACE ELEVATION SECTION MEAN WITHOUT WITH CROSS SECTION DISTANCE1 WIDTH (FEET) AREA (SQUARE VELOCITY (FEET PER REGULATORY (FEET NAVD) FLOODWAY FLOODWAY INCREASE (FEET) FEET) SECOND) (FEET NAVD) (FEET NAVD) LITTLE THOMPSON RIVER A 1,706 1072 2,499 6.2 4,735.9 4,735.9 4,735.9 0.0 B 2,621 984 5,574 2.8 4,741.7 4,741.7 4,741.8 0.1 C 3,429 752 2,840 5.1 4,742.3 4,742.3 4,742.4 0.1 D 4,342 1011 2,778 4.6 4,744.0 4,744.0 4,744.0 0.0 E 4,728 508 1,602 7.6 4,744.3 4,744.3 4,744.4 0.1 F 5,115 451 2,068 5.6 4,746.8 4,746.8 4,746.8 0.0 G 5,799 873 6,284 2.2 4,750:2 4,750.2 4,750.2 0.0 H 6,209 874 6,474 1.8 4,750.3 4,750.3 4,750.3 0.0 - I 6,382 315 2,768 3.9 4,754.0 4,754.0 4,754.1 0.1 J 8,402 1233 4,818 3.2 4,756.4 4,756.4 4,756.9 0.5 'Feet above Confluence with Big Thompson River FEDERAL EMERGENCY MANAGEMENT AGENCY WELD COUNTY, CO r AND INCORPORATED AREAS m cn FLOODWAY DATA LITTLE THOMPSON RIVER REVISED TO REFLECT LOMR EFFECTIVE: February 1, 2021 Revi Da FLOODING SOURCE FLOODWAY 1 -PERCENT -ANNUAL -CHANCE FLOOD WATER SURFACE ELEVATION CROSS SECTION DISTANCE' WIDTH (FEET) SECTION AREA (SQUARE MEAN VELOCITY (FEET PER REGULATORY (FEET NAVD) WITHOUT FLOODWAY WITH FLOODWAY INCREASE (FEET) FEET) SECOND) (FEET NAVD) (FEET NAVD) >ed a Railroad Split A 1,624' 48 147 7.1 4,746.6 4,746.6 4,746.6 0.0 B 1,955' 129 338 3.8 4,748.4 4,748.4 4,748.5 0.1 C 2,356' 76 117 4.4 4,750.4 4,750.4 4,750.4 0.0 SH60 Split A 2,1252 225 673 2.1 4,752.3 4,752.3 4,752.3 0.0 B 2,2212 224 435 4.1 4,752.9 4,752.9 4,752.9 0.0 C 2,4782 331 1,616 2.4 4,753.3 4,753.3 4,753.3 0.0 D 2,7392 415 2,100 2.2 4,753.4 4,753.4 4,753.5 0.1 'Feet upstream of N. Josephine Avenue 2Feet upstream of S. Katheleen Avenue n coo m FEDERAL EMERGENCY MANAGEMENT AGENCY WELD COUNTY, CO AND INCORPORATED AREAS FLOODWAY DATA RAILROAD SPLIT SH60 SPLIT REVISED TO REFLECT LOMB EFFECTIVE: February 1, 2021 4,760 - - 4,760 - i - { - , , � , I • ■ - . r ■ �� . .- - -«- .. - - ^--- -.- - - - � ' w r - - 4,755 4,755 - 1- l 0 I 1 z _ � - - _ - o_ . U. w 0 - W > _ . - -. -� _ 4 -,- . _-� ~- dz {- ? 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I!I'll IN { _ -.- I I , 2 �-- - " Q T 1 1 i ■�■�■� 4_. + y w , ,_ . ■ . , _ 4,725 4,725 , , , . , _ ■■ I--- ■ LEGEND z Z ---4--4 -a--• T —■ ■■�� iL ■■ ■ ■ r ■■ g Y 0.2% ANNUAL CHANCE FLOOD 2 D . � _ _ _ "1%+" -- — ANNUAL CHANCE FLOOD* �■ ■■■ _■■■■■■ U [L ■.♦.■■ _ �� ■ ■�■ ■■_ ■■■■ ■■■� ■■ ■ ■ ■ — U ■■ — 1% ANNUAL CHANCE FLOOD I: 1 lZ la 2% ANNUAL CHANCE FLOOD 1 i -a Q — U a a Ce 4,720 ,-I 4. 4% ANNUAL CHANCE FLOOD* W Z_ w •■• ■- ■■ ■ww■■■■ t ANNUAL CHANCE FLOOD 10% ■■■ I ■■ ■■ ■—■ ■■u■ ■■ —_■■ ■� ■■■■ w CI ■■ ■ Z �- ____ • � STREAM BED ■..._■ --- .. - ... _ — _ • --1 . - ■r�- ■_ ` _ I ■�■��■ gill ■■� ■�■_ ■■ IIIIIIVII CROSS SECTION LOCATION (:::1 l r ■ ■ ■ C■ ■■ ■ ' DATA NOT AVAILABLE ■■=u w T ■�I•�r�� _ I + - - - --- �- 4, 715 2,600 2,800 3,000 3,200 3,400 3,600 3,800 4,000 4,200 4,400 4,600 ReMD TO 5,000 5,200 REFLECT LOMB STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH BIG THOMPSON RIVER EFFECTIVE: February 1, 2021 78P f: 4.750 i %OS in. 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KATHELEEN AVENUE 3,600 • -- b LEGEND 0.2% ANNUAL CHANCE FLOOD "1%+" ANNUAL CHANCE FLOOD' - 1% ANNUAL CHANCE FLOOD 2% ANNUAL CHANCE FLOOD 4% ANNUAL CHANCE FLOOD 10% ANNUAL CHANCE FLOOD STREAM BED CROSS SECTION LOCATION DATA NOT AVAILABLE 4,000 REVISED TO 4,800 REFLECT LOMR EFFECTIVE: February 1, 2021 4,756 4,754 4,752 4,750 4,748 4,746 4,744 4,742 5,200 F Fe J CL CD E11 ' • L E I se •NCY M • N • GEMENT • N NCY WELD COUNTY CO dellaWaliallAingitiV CD Q 146P NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 4 NORTH, RANGE 67 WEST. SPECIAL FLOOD HAZARD AREAS OTHER AREAS OF FLOOD HAZARD Without Base Flood Elevation (BEE) Zone A,V, A99 With BFE Or Depth Zone AE, A0, AH, 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 707' x Area with Reduced Flood Risk due to Levee See Notes. SCALE N Map Projection. NAD 1983 UTM Zone 13N; Western Hemisphere; Ventral Detum: NAVD 88 1 Inch - 500 feet 1:6,000 0 0 250 75 500 150 1,000 Feet Meters 300 44 e.,1a �). nsurance Program O O LL C O NATIONAL ROOD INSURANCE PROGRAM FLOOD INSUPAh PATE MrtP WELD COUNTY, COLORADO and Incorporated Areas PAI4EL 1703DF2250 COMMUNITY MILLIKEN, TOWN OF WELD COUNTY NUMBER PANEL SUFFIX 080187 1703 E 080266 1703 E KEVISED TO REFLECT LOMR EFFECTIVE: February 1, 2021 VERSION NUMBER 2.L3.0 MAP NUMBER 0812301703E EFFECiNE DATE JANUARY 20, 2O16 GREAT WESTERN RAILWAY EFFEC S. ROM Bridge 4750,4 Town of Milliken 0801 ZONE AE Bridge E • J Areas REVISED RBA NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 4 NORTH, RANGE 67 WEST. FLOODING EFFECTS FROM LITTLE THOMPSON RIVER ZONE AE -1365000 FT ZONE AE SPECIAL FLOOD HAZARD AREAS OTHER AREAS OF FLOOD HAZARD SCALE Without Base Flood Elevation (BFE) 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 Area with Reduced Flood Risk due to Levee See Notes. Map Pro: NAD 1983 UTM Zone 13N, Western Hemisphere; Vertical Datum: NAVD 88 1 inch = 500 feet 1,000 Feet Meters 300 NATIONAL FLOOD INSURANCE PROGRAM WELD COUNTY, COLORADO anc Incorporated Areas COMMUNITY MILLIKEN. TOWN OF WELD COUNTY NUMBER 080187 080266 PANEL SUFFIX 1684 E 1684 E REVISED TO REFLECT LOMR EFFECTIVE: February 1, 2021 VERSION NUMBER 2.L3.0 MAP NUMBER 08123C1684E EFFECTNE DATE JANUARY 20, 2016 Hello