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HomeMy WebLinkAbout22-08-0557P-300028Case No.: Page 1 of 5 Effective Date: July 26, 2023 Issue Date: March 14, 2023 LOMR-APP 22-08-0557P Washington, D.C. 20472 Federal Emergency Management Agency LETTER OF MAP REVISION DETERMINATION DOCUMENT COMMUNITY AND REVISION INFORMATION PROJECT DESCRIPTION COMMUNITY APPROXIMATE LATITUDE AND LONGITUDE: 45.689, -111.030 SOURCE: Other DATUM: NAD 83 City of Bozeman Gallatin County Montana COMMUNITY NO.: 300028 BASIS OF REQUEST IDENTIFIER BRIDGE CULVERT 1D HYDRAULIC ANALYSIS FLOODWAY UPDATED TOPOGRAPHIC DATA Rouse Ave - Bozeman ANNOTATED MAPPING ENCLOSURES ANNOTATED STUDY ENCLOSURES DATE: April 21, 2021 NO.: 30031C0808E TYPE: FIRM* DATE: April 21, 2021 NO.: 30031C0809E TYPE: FIRM DATE: April 21, 2021 NO.: 30031C0816E TYPE: FIRM DATE: April 21, 2021 NO.: 30031C0817E TYPE: FIRM DATE OF EFFECTIVE FLOOD INSURANCE STUDY: April 21, 2021 PROFILES: 085P-087P, 126P, AND 244P(NEW) FLOODWAY DATA TABLE: 8 SUMMARY OF DISCHARGES TABLE: 5 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 Bozeman Creek - from approximately 590 feet upstream of I90 to the downstream side of Mendenhall Street SUMMARY OF REVISIONS Revised Flooding Effective Flooding Flooding Source Increases Decreases Bozeman Creek BFEs* Floodway Zone AE Zone X (shaded) BFEs Floodway Zone AE Zone X (shaded) YES YES YES YES YES YES YES YES * 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 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. 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. 22-08-0557P 102-I-A-C Patrick “Rick” F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration Case No.: Page 2 of 5 Effective Date: July 26, 2023 Issue Date: March 14, 2023 LOMR-APP 22-08-0557P Washington, D.C. 20472 Federal Emergency Management Agency LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) OTHER FLOODING SOURCES AFFECTED BY THIS REVISION FLOODING SOURCES AND REVISED REACHES East Gallatin River - from approximately 610 feet downstream of the confluence of Bridger Drive Split to approximately 80 feet upstream of the confluence of Bozeman Creek Bridger Drive Split - from the confluence with East Gallatin River to the divergence from East Gallatin River SUMMARY OF REVISIONS Flooding Source Effective Flooding Revised Flooding Increases Decreases East Gallatin River BFEs* BFEs YES YES Floodway Floodway YES YES Zone X (shaded) Zone X (shaded) YES YES Zone AE Zone AE YES YES Bridger Drive Split No BFEs BFEs YES NONE No Floodway Floodway YES NONE Zone X (shaded) Zone X (shaded) YES YES Zone AE Zone X (unshaded) Zone X (unshaded) Zone AE Zone AE Zone X (shaded) YES YES YES YES NONE NONE * BFEs - Base Flood Elevations 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. 22-08-0557P 102-I-A-C Patrick “Rick” F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration Case No.: Page 3 of 5 Effective Date: July 26, 2023 Issue Date: March 14, 2023 LOMR-APP 22-08-0557P Washington, D.C. 20472 Federal Emergency Management Agency 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 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. 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. 22-08-0557P 102-I-A-C Patrick “Rick” F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration Case No.: Page 4 of 5 Effective Date: July 26, 2023 Issue Date: March 14, 2023 LOMR-APP 22-08-0557P Washington, D.C. 20472 Federal Emergency Management Agency LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) 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. 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 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 panels and FIS report warrant physical revision and republication in the future, we will incorporate the modifications made by this LOMR at that time. The corporate limits for your community have changed because of annexations. A portion of the revision area shown on the above-referenced FIRM panel, 30031C0808E, to be within the Unincorporated Areas of Gallatin County has been annexed by the City of Bozeman. We have not reflected these corporate limits changes 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. 22-08-0557P 102-I-A-C Patrick “Rick” F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration Case No.: Page 5 of 5 Effective Date: July 26, 2023 Issue Date: March 14, 2023 LOMR-APP 22-08-0557P Washington, D.C. 20472 Federal Emergency Management Agency 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: Bozeman Daily Chronicle Dates: March 21, 2023 and March 28, 2023 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.fema.gov/flood-insurance. 22-08-0557P 102-I-A-C Patrick “Rick” F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration 32 Table 5. Summary of Discharges Peak Discharges (cubic Feet per second) Flooding Source and Location Drainage Area (Square Miles) Hydraulic Cross Section 10-Percent- Annual Chance 4-Percent- Annual Chance 2-Percent- Annual Chance 1-Percent- Annual Chance 0.2-Percent Annual Chance At Goldenstein Lane * 31,772 388 538 644 743 972 Approximately 500 feet upstream of Goldenstein Lane * 32,217 377 523 625 720 953 At confluence with Nash Road Split * 45,459 377 525 647 777 1,120 At Nash Road 30 47,091 374 468 517 553 605 Approximately 300 feet upstream of Nash Road * 47,519 375 517 628 737 995 Upstream limit of detailed study – approximately 900 feet upstream of Nash Road * 47,979 377 525 647 777 1,120 Bridger Creek At confluence with East Gallatin River 70 * 790 * 1,170 1,350 1,810 At upstream limit of study 64 * 725 * 1,090 1,260 1,700 Buster Gulch Entire Reach * * 407 * 582 673 898 Cedar Street Split At divergence from Mill Ditch Diversion * 1,312 19 52 69 88 137 Church Avenue Split At Fridley Street * 865 17 47 54 61 76 At Davis Street * 1,306 23 57 65 73 89 At Lamme Street * 1,689 21 151 291 451 941 At Mendenhall Street * 2,069 36 82 92 103 125 At Main Street * 2,436 48 106 119 133 161 Road Bridger Creek At confluence with East Gallatin River 70 * 790 * 1,170 1,350 1,810 At upstream limit of study 64 * 725 * 1,090 1,260 1,700 Buster Gulch Entire Reach * * 407 * 582 673 898 Cedar Street Split At divergence from Mill Ditch Diversion * 1,312 19 52 69 88 137 Church Avenue Split At Fridley Street * 865 17 47 54 61 76 At Davis Street * 1,306 23 57 65 73 89 At Lamme Street * 1,689 21 151 291 451 941 At Mendenhall Street * 2,069 36 82 92 103 125 At Main Street * 2,436 48 106 119 133 161 Bridger Drive Split *61 355 512 926 REVISED DATA REVISED TO REFLECT LOMR EFFECTIVE: July 26, 2023 SECTION MEAN WIDTH AREA VELOCITY (FEET) (SQUARE (FEET PER FEET) SECOND)A321 129317 34,717.9 4,717.94,718.0 0.1B961 39119 7.94,723.4 4,723.44,723.6 0.2C1,022 69209 4.54,724.6 4,724.64,724.8 0.2D1,253 50126 7.54,726.2 4,726.24,726.2 0.0E1,410 63244 3.94,728.8 4,728.84,728.8 0.0F2,032 54141 6.64,733.6 4,733.64,733.80.2G2,707 89203 4.64,739.3 4,739.34,739.30.0H3,357 124214 4.44,744.8 4,744.84,744.90.1I3,503 48195 4.84,746.3 4,746.34,746.30.0J3,817 44263 3.44,752.1 4,752.14,752.50.4K4,253 44154 5.54,752.6 4,752.64,752.90.3L4,766 35147 5.74,758.6 4,758.64,758.70.1M5,170 39156 5.24,761.3 4,761.34,761.30.0N5,626 45153 5.34,765.8 4,765.84,765.80.0O6,297 32134 64,774.3 4,774.34,774.30.0P6,765 96235 3.44,782.5 4,782.54,782.60.1Q7,189 3388 94,784.1 4,784.14,784.10.0R7,530 79177 4.54,789.4 4,789.44,789.90.5S7,863 2698 8.14,792.0 4,792.04,792.1 0.1T8,225 57142 5.64,796.5 4,796.54,796.50.0U8,627 228309 2.54,800.8 4,800.84,800.8 0.0V9,009 108174 3.14,804.7 4,804.74,804.8 0.1 1 Feet above confluence with East Gallatin RiverINCREASE TABLE 8FLOODWAY DATABOZEMAN CREEKFLOODING SOURCE FLOODWAYBASE FLOOD WATER SURFACE ELEVATION(FEET NAVD 88)CROSS SECTIONDISTANCE1REGULATORY WITHOUT FLOODWAY WITH FLOODWAY FEDERAL EMERGENCY MANAGEMENT AGENCY GALLATIN COUNTY, MT AND INCORPORATED AREAS2936243265326827571854,758.64,761.14,764.54,774.24,782.14,784.14,789.74,792.44,796.34,800.54,758.64,761.14,764.54,774.24,782.14,784.14,789.74,792.44,796.34,800.54,758.74,761.34,764.54,774.24,782.14,784.14,790.04,792.44,796.34,800.714215494130199851791041592546.05.38.76.14.09.34.47.65.03.10.20.00.30.26,7757,1957,5317,8648,2268,628REVISEDDATA5,5510.0 REVISED TO REFLECT LOMR EFFECTIVE: July 26, 2023 CROSS SECTION DISTANCE1 WIDTH (FEET) SECTION AREA (SQUARE FEET) MEAN VELOCITY (FEET PER SECOND) REGULATORY WITHOUT FLOODWAY WITH FLOODWAY INCREASE A 268 60 106 4.8 4,707.1 4,707.1 4,707.2 0.1 B 430 66 82 6.3 4,707.4 4,707.4 4,707.6 0.2 C 623 98 93 5.5 4,708.5 4,708.5 4,708.6 0.1 D 753 103 94 5.5 4,709.2 4,709.2 4,709.4 0.2 E 999 113 99 5.2 4,710.4 4,710.4 4,710.6 0.2 F 1,202 97 110 4.6 4,712.4 4,712.4 4,712.6 0.2 1 Feet above confluence with East Gallatin River FLOODING SOURCE FLOODWAY BASE FLOOD WATER SURFACE ELEVATION (FEET NAVD 88) FEDERAL EMERGENCY MANAGEMENT AGENCY GALLATIN COUNTY, MT AND INCORPORATED AREAS FLOODWAY DATA BRIDGER DRIVE SPLIT T A B L E 10TABLE 8 REVISED TO REFLECT LOMR EFFECTIVE: July 26, 2023 SECTION MEAN WIDTH AREA VELOCITY (FEET) (SQUARE (FEET PER FEET) SECOND)BA 53,307 1193247.74,665.7 4,665.7 4,665.8 0.1BB 53,878 6611,5441.64,667.8 4,667.8 4,668.3 0.5BC 54,923 91 3118.04,670.1 4,670.1 4,670.2 0.1BD 55,01564 289 8.64,670.9 4,670.94,671.1 0.2BE 55,06464 352 7.14,671.9 4,671.94,671.9 0.0BF 55,154925964.24,672.8 4,672.84,672.8 0.0BG 55,50790 411 6.14,673.5 4,673.54,673.5 0.0BH 56,54362 379 3.04,676.3 4,676.34,676.4 0.1BI 57,10589 326 4.94,677.1 4,677.14,677.2 0.1BJ 57,832114 469 3.4 4678.84,678.8 4,679.00.2BK 58,715118 315 6.4 4680.9 4,680.9 4,681.4 0.5BL 59,282355 919 2.8 4683 4,683.0 4,683.5 0.5BM 61,028487 827 3.6 4686.7 4,686.7 4,687.1 0.4BN 61,564644 985 2.3 4688.3 4,688.3 4,688.8 0.5BO 62,535261 468 4.8 4690.3 4,690.3 4,690.8 0.5BP 63,644 121 326 6.94696.8 4,696.8 4,697.3 0.5BQ 64,861 690 1059 2.1 4701.5 4,701.5 4,701.9 0.4BR 65,665269 386 5.84704.74,704.7 4,704.8 0.1BS 66,031227 806 2.84706.14,706.1 4,706.5 0.4BT 66,500457 441 5.14709.74,709.7 4,710.1 0.4BU 66,721428 410 5.54710.94,710.9 4,711.4 0.5BV 66,81453 1,631 11.04712.14,712.1 4,712.1 0.0BW 66,924575 1,859 1.24715.1 4715.14,715.3 0.2BX 67,033442 1,645 1.44715.2 4715.24,715.4 0.2 TABLE 8FLOODWAY DATAEAST GALLATIN RIVERFLOODING SOURCE FLOODWAYBASE FLOOD INCREASE1Distance in feet above Airport RoadCROSS SECTION FEDERAL EMERGENCY MANAGEMENT AGENCY GALLATIN COUNTY, MT AND INCORPORATED AREASREGULATORYWITHOUT FLOODWAYWITH FLOODWAYWATER SURFACE ELEVATION(FEET NAVD 88)DISTANCE14065351732252223461,2845.63.310.07.77.85.01.84,704.74,706.64,708.24,711.64,712.24,714.04,714.64,704.74,706.64,708.24,711.64,712.24,714.04,714.6296150364153763914,704.84,706.64,708.44,711.84,712.44,714.14,714.90.00.20.20.20.10.366,00166,41066,68466,77866,88866,997REVISEDDATA REVISED TO REFLECT LOMR EFFECTIVE: July 26, 2023 SECTION MEAN WIDTH AREA VELOCITY (FEET) (SQUARE (FEET PER FEET) SECOND)BY 67,63373 344 6.54,716.3 4,716.34,716.6 0.3BZ 68,335169 542 3.34,719.5 4,719.54,719.8 0.3CA 68,552247 491 3.64,720.3 4,720.34,720.5 0.2CB 68,617196 725 4.04,721.0 4,721.04,721.5 0.5CC 68,75482 364 4.94,722.0 4,722.04,722.2 0.2CD 68,91789 354 5.04,722.5 4,722.54,722.7 0.2CE 69,72957 227 7.84,726.1 4,726.14,726.2 0.1CF 69,79979 349 5.14,727.8 4,727.84,727.8 0.0CG 70,045137 624 2.84,729.2 4,729.24,729.2 0.0CH 70,48044 187 9.54,731.5 4,731.54,731.5 0.1CI 70,73571 274 7.54,735.0 4,735.04,735.0 0.1CJ 70,850531 1,832 1.34,737.4 4,737.44,737.4 0.0CK 70,928391 630 3.14,737.2 4,737.24,737.2 0.1CL 71,699154 484 3.74,739.4 4,739.44,739.4 0.2CM 72,74378 225 7.94,743.6 4,743.64,743.6 0.5CN 73,73042 226 7.44,753.5 4,753.54,753.5 0.1CO 74,74594 188 8.94,762.9 4,762.94,762.9 0.0CP 74,831162 285 5.94,764.8 4,764.84,764.8 0.0CQ 74,866265 409 4.14,765.5 4,765.54,765.5 0.3CR 75,04045 243 6.94,765.9 4,765.94,765.9 0.4CS 75,25651 243 6.94,767.0 4,767.04,767.0 0.5CT 75,769111 321 5.24,770.2 4,770.24,770.2 0.4CU 76,24038 148 11.34,775.3 4,775.34,775.3 0.0CV 76,31941 230 7.3 4,777.3 4,777.3 4,777.3 0.0 FEDERAL EMERGENCY MANAGEMENT AGENCY GALLATIN COUNTY, MT AND INCORPORATED AREASWATER SURFACE ELEVATIONTABLE 8FLOODWAY DATAEAST GALLATIN RIVERINCREASE(FEET NAVD 88)CROSS SECTIONDISTANCE1REGULATORYWITHOUT FLOODWAYWITH FLOODWAYFLOODING SOURCE FLOODWAYBASE FLOOD 861Distance in feet above Airport Road3356.74,716.50.267,615REVISEDDATA REVISED TO REFLECT LOMR EFFECTIVE: July 26, 2023 REVISED TO REFLECT LOMR EFFECTIVE: July 26, 2023 REVISED TO REFLECT LOMR EFFECTIVE: July 26, 2023 REVISED TO REFLECT LOMR EFFECTIVE: July 26, 2023 REVISED TO REFLECT LOMR EFFECTIVE: July 26, 2023 REVISED TO REFLECT LOMR EFFECTIVE: July 26, 2023 ZONE AE ZONEAE JOINS PANEL 0809ZONE AE 4785.6 NMONTANAAVE BRIDGERDR530000 FT NROUSEAVE REVISEDAREA GALLATINVILLAGE TRAILERCOURT TRPK INDUSTRIAL DR E OAK ST E GRIFFIN DR EVERGREEN DR §¨¦90 4701.5 BRYANT ST RAILROAD %,B T 4710.34 7 0 5 .2 4 7 0 6 .6 4 70 8.2 4 7 0 4 .7 4755.64754.8 %,BQ %,L %,BR EastGallatinRiver T. 2 S. T. 1 S. %,BS4 7024704 Gallatin CountyUnincorporated Areas300027 Gallatin CountyUnincorporated Areas300027 Gallatin CountyUnincorporatedAreas300027 City ofBozeman300028 GallatinCountyUnincorporatedAreas300027 6 31 REVISED AREA GALLATIN COUNTY, MONTANAand Incorporated Areas 2.3.3.2 30031C0808E 4/21/2021 Bozeman, City OfGallatin County 300028300027 08080808 EE 808 1725FEMA National Flood Insurance ProgramWithout Base Flood Elevation (BFE)Zone A, V, A99With BFE or Depth Zone AE, AO, AH, VE, AR Regulatory FloodwaySPECIAL FLOODHAZARD AREAS 0.2 % Annual Chance Flood Hazard, Areasof 1% annual chance flood with averagedepth less than one foot or with drainageareas of less than one square mile Zone XFuture Conditions 1% AnnualChance Flood Hazard Zone XArea with Reduced Flood Risk due to LeveeSee Notes. Zone X OTHER AREAS OFFLOOD HAZARD VERSION NUMBER MAP NUMBER MAP REVISED NATIONAL FLOOD INSURANCE PROGRAMFLOOD INSURANCE RATE MAP FEMAPanel Contains: COMMUNITY NUMBER PANEL SUFFIX PANEL OF 0 125 25062.5 Meters SCALE Map Projection:Universal Lambert Conformal ConicNAD 1983 StatePlane Montana FIPS 2500 FeetWestern Hemisphere; Vertical Datum: NAVD 88 0 500 1,000250 Feet 1 inch = 500 feet 1:6,000 Imagery Source: NAIP 2015 REVISED TO REFLECT LOMR EFFECTIVE: July 26, 2023 )))))))))))) ))))))))))))))))))))))))))))))))))))))))))))6 5 32 31 ZONE AE ZONE AE ZONE AE ZONE AE ZONEAE ZONEAE ZONE AE ZONE AE ZONE AE ZONEAE ZONE AE ZONE AE 531495mN ZONEAE ZONEAE ZONE AE East GallatinRiver ZONEAE ZONEAE ZONEAE E BIRCH ST E JUNIPERST P A R C T IDAAVE E ASPEN ST 45°41'15" COMMERCIALDRBRIDGER CENTER DR L STPEAR ST BOND ST %,BRE OAK ST BRYANT ST FRONT ST N WALLACE AVE E TAMARACK ST I-90 Split HILLSIDE LN BRIDGER VIEWTRAILERCOURT TRPK WAREHOUSE RD PARADISEVISTA RD CEDAR ST BOHART RD E GRIFFIN DR §¨¦90JOINS PANEL 0808JOINS PANEL 0817 JOINS PANEL 0816528214mN RAILROAD 4772.8 4752.2 4762.2 4767.3 4755.847 43.6 4 7 0 8 .5 Wallace AvenueSplit 4 7 0 7 .4 4714.94755.94 7 0 8 .1 111°01' 52.5" 4750 4747.1 4 7 0 7.14711.6 4753.54714.0 4 7 2 9 .2 Bozeman Creek 4 7 1 2 .2 4739.4 4709.8 ZONE AE 4714.84768.8 4 7 0 9.2 4716.34710.44717.84764.5 4765.8 4766.1 4763.2 4719.04762.3 4 7 2 2.5 4726.2 4719.54758.64758.6 4727.84735.04761.1 4 7 3 1 .5 4755.6 4729.24712.4472 2 .04704.74 7 05.24714.64726.14727.9 4739.3 4728.8 4737.24724.14724.6 4 7 2 0 .3 4 7 2 3 .4 4752.14752.5 4754.8 4 7 1 4 .5 4 7 2 1 .0 4 7 1 7 .9 4736.4 4737.44733.6 4756.0 4744.8 4742.7 4746.3 %,B %,CM %,C %,B %,BT %,C%,A %,A %,A %,BS %,A %,BU%,CN%,BW %,L%,B V %,CL %,D %,BY%,E%,N %,C D %,D %,BZ%,CF%,CI%,M %,C H %,CG%,F%,CC %,BX%,CE%,G %,E %,CK %,C %,C A %,B %,J %,C B %,A %,CJ%,F %,H%,I Mill DitchDiversionBozemanCreek East Gallatin River Bridge Bridge CulvertBridge Bridge Bridge RAILROAD Bridge Bridge Bridge Bridge Bridge Bridge Bridge REVISEDAREA 0.2 PCT ANNUAL-CHANCEFLOOD DISCHARGECONTAINED IN STRUCTURE LIMIT OF STUDYLIMIT OF STUDYLIMIT OF STUDY LIMIT OF STUDY 4 7 5 0 47544746 Bridger Drive Split 4710.3 4732 4740 47044706.6 4 7 3 4 4736 4742 East GallatinRiver 4708.2 4739 Gallatin CountyUnincorporatedAreas300027 Gallatin CountyUnincorporated Areas300027 Gallatin CountyUnincorporated Areas300027 City ofBozeman300028 Gallatin CountyUnincorporated Areas300027 REVISEDAREA GOLD AVE 4704 4704 Bridge 4752.6%,K GALLATIN COUNTY, MONTANAand Incorporated Areas 2.3.3.2 30031C0809E 4/21/2021 Bozeman, City OfGallatin County 300028300027 08090809 EE 809 1725FEMA National Flood Insurance ProgramWithout Base Flood Elevation (BFE)Zone A, V, A99With BFE or Depth Zone AE, AO, AH, VE, AR Regulatory FloodwaySPECIAL FLOODHAZARD AREAS 0.2 % Annual Chance Flood Hazard, Areasof 1% annual chance flood with averagedepth less than one foot or with drainageareas of less than one square mile Zone XFuture Conditions 1% AnnualChance Flood Hazard Zone XArea with Reduced Flood Risk due to LeveeSee Notes. Zone X OTHER AREAS OFFLOOD HAZARD VERSION NUMBER MAP NUMBER MAP REVISED NATIONAL FLOOD INSURANCE PROGRAMFLOOD INSURANCE RATE MAP FEMAPanel Contains: COMMUNITY NUMBER PANEL SUFFIX PANEL OF 0 125 25062.5 Meters SCALE Map Projection:Universal Lambert Conformal ConicNAD 1983 StatePlane Montana FIPS 2500 FeetWestern Hemisphere; Vertical Datum: NAVD 88 0 500 1,000250 Feet 1 inch = 500 feet 1:6,000 NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 1 SOUTH, RANGE 6 EAST AND TOWNSHIP 2 SOUTH, RANGE 6 EAST. Imagery Source: NAIP 2015 REVISED TO REFLECT LOMR EFFECTIVE: July 26, 2023 ))))))))))))))))))))))))7 6 E SHORT ST BABCOCK ST MAIN ST WMENDENHALLST %,S W BEALL ST%,R W SHORT ST 4782.2 REVISEDAREA S BOZEMAN AVES ROUSEAVES BLACKAVES TRACYAVEFLOODWAY CONTAINED INSTRUCTURE E VILLARD ST E BEALL ST E PEACH ST E COTTONWOOD ST N MONTANA AVE LAMME ST MENDENHALL ST Main StreetSplit %,X HUFFINE LN Main Street North Alley US HWY 191N WILLSON AVEN TRACY AVEN BLACK AVEN BOZEMAN AVE N ROUSEAVE STATEHWY 8645° 41' 15"111° 01' 52.5"JOINS PANEL 0817JOINS PANEL 0808 4811.9 4808.5 525000 FT 4811.8 4 8 1 5 .3 4805.0 4802.5 4774.2 4816.14816.8 4813.4 4782.1 4802.2 4779.5 4789.24789.7 4783.14782.6 4784.1 4 78 3.9 4804.7 4777.0 4791.0 4802.0 47 90 .2 4 8 0 4 .7 4789.0 4792.4 4786.1 4797.2 4786.74787.9 4796.3 4 80 0.7 4798.2 4796.3 4800.5 4794.5 4798.9 4813.3 4793.94793.5 4813.6 4799.4 %,C %,C %,D %,F %,B %,P %,G %,E %,Q %,V %,T %,U %,W Bozeman CreekBridge PedestrianBridge Bridge Bridge Culvert Culvert Bridge FLOODWAY CONTAINEDIN STRUCTURE Bridge Culvert City ofBozeman300028 %,A4802.5 Rouse Avenue Downtown NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 2 SOUTH, RANGE 5 EAST AND TOWNSHIP 2 SOUTH, RANGE 6 EAST. GALLATIN COUNTY, MONTANAand Incorporated Areas 2.3.3.2 30031C0816E 4/21/2021 Bozeman, City OfGallatin County 300028300027 08160816 EE 816 1725FEMA National Flood Insurance ProgramWithout Base Flood Elevation (BFE)Zone A, V, A99With BFE or Depth Zone AE, AO, AH, VE, AR Regulatory FloodwaySPECIAL FLOODHAZARD AREAS 0.2 % Annual Chance Flood Hazard, Areasof 1% annual chance flood with averagedepth less than one foot or with drainageareas of less than one square mile Zone XFuture Conditions 1% AnnualChance Flood Hazard Zone XArea with Reduced Flood Risk due to LeveeSee Notes. Zone X OTHER AREAS OFFLOOD HAZARD VERSION NUMBER MAP NUMBER MAP REVISED NATIONAL FLOOD INSURANCE PROGRAMFLOOD INSURANCE RATE MAP FEMAPanel Contains: COMMUNITY NUMBER PANEL SUFFIX PANEL OF 0 125 25062.5 Meters SCALE Map Projection:Universal Lambert Conformal ConicNAD 1983 StatePlane Montana FIPS 2500 FeetWestern Hemisphere; Vertical Datum: NAVD 88 0 500 1,000250 Feet 1 inch = 500 feet 1:6,000 Imagery Source: NAIP 2015 REVISED TO REFLECT LOMR EFFECTIVE: July 26, 2023 )))))))) 8 7 6 5 ZONE AE ZONE AEZONE AE(EL 4822) ZONE AE ZONE AE 4811.5Z O N E X ZONE AE ZONE AE ZONE AE MillDitchDiversion ORANGEST MCADOWAVE111°01'52.5" BRADY AVE E AVACADO ST AYLSWORTHSTIDAAVE E OLIVE ST 45°41'15" FR ONT ST ChurchAvenue Split E CURTISS STDAVIS ST CYPRESS STCulvert %,B S WALLACE AVE524933N E COTTONWOOD ST N BROADWAYAVE E MENDENHALL ST FRIDLEYST N CHURCHAVE %,O EPEACH ST PLUM AVE N BROADWAY AVEE MAIN ST HUFFINE LN N WALACEAVE %,A PERKIN ST E LAMME ST JOINS PANEL 0809 REVISEDAREA JOINS PANEL 0817JOINSPANEL 0816Wallace AvenueSplit RAILROAD1578081mE RAILROAD BozemanCreek RAILROAD8 47 89.5 4776.94811.5 4811.24784.3 4811.14781.7 4 7 8 9 .2 4797.8 4809.1 4795.6 4 7 8 9 .7 4789.04818.0 4810.34 8 0 9 .7 4784.1 48 02 .7 4810.64783.9 4804.54810.9 4814.1 4782.2 4800.5 4783.1 4815.7 4779.54782.1 4777.04782.6 4774.2 %,A %,C%,R %,Q%,B%,L %,A%,B%,Q %,R %,O %,N %,P %,P Mill Ditch DiversionMain StreetSplit PLUM AVE 0.2 PC T Annual Chance Flood Discharge C ontained in StructureCul ver t C u l v e r t Footbridge Footbridge 0.2 PCTAnnualChanceFlood DischargeContained inStructure0.2 PCTAnnualChanceFlood DischargeContained inStructureCity ofBozeman300028 NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 2 SOUTH, RANGE 6 EAST. GALLATIN COUNTY, MONTANAand Incorporated Areas 2.3.3.2 30031C0817E 4/21/2021 Bozeman, City OfGallatin County 300028300027 08170817 EE 817 1725FEMA National Flood Insurance ProgramWithout Base Flood Elevation (BFE)Zone A, V, A99With BFE or Depth Zone AE, AO, AH, VE, AR Regulatory FloodwaySPECIAL FLOODHAZARD AREAS 0.2 % Annual Chance Flood Hazard, Areasof 1% annual chance flood with averagedepth less than one foot or with drainageareas of less than one square mile Zone XFuture Conditions 1% AnnualChance Flood Hazard Zone XArea with Reduced Flood Risk due to LeveeSee Notes. Zone X OTHER AREAS OFFLOOD HAZARD VERSION NUMBER MAP NUMBER MAP REVISED NATIONAL FLOOD INSURANCE PROGRAMFLOOD INSURANCE RATE MAP FEMAPanel Contains: COMMUNITY NUMBER PANEL SUFFIX PANEL OF 0 125 25062.5 Meters SCALE Map Projection:Universal Lambert Conformal ConicNAD 1983 StatePlane Montana FIPS 2500 FeetWestern Hemisphere; Vertical Datum: NAVD 88 0 500 1,000250 Feet 1 inch = 500 feet 1:6,000 Imagery Source: NAIP 2015 REVISED TO REFLECT LOMR EFFECTIVE: July 26, 2023