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Home My WebLink About30031C0829D NOTES TO USERS LEGEND This map is for use in administering the National Flood Insurance Program.It MM SPECIAL FLOOD HAZARD AREAS SFHM) SUBJECT TO does not necessarily identify all areas subject to flooding, particularly from local INUNDATION BY THE 1%ANNUAL C ANCE FLOOD drainage sources of small size.The community map repository should be 11058'07.6" 503000m E JOINS PANEL 0830 s04000m E 1105815.0" The 1%annual chance flood(100-year flood),also known as the base flood,is the flood consulted for possible updated or additional flood hazard information. 46.43'076• 45"43'07.5" that has a 1%chance of being equaled or exceeded in any given year.The Special Flood Hazard Area is the area subject to flooding by the 1%annual chance flood.Areas To obtain more detailed information In areas where Base Flood Elevations of Special Flood Hazard include Zones A,AE,AH,AD,AR,A99,V and VE.The Base (BFES)and/or floodways have been determined,users are encouraged to consult Flood Elevation is the water-surface elevation of the 1%annual chance flood. the Flood Profiles and Floodway Data and/or Summary of Stillwater Elevations ZONE A No Base Flood Elevations determined. tables contained within the Flood Insurance Study(FIS)report that accompanies this FIRM. Users should be aware that BFES shown on the FIRM represent ZONE AE Base Flood Elevations determined. rounded whole-foot elevations. These BFES are intended for flood insurance ZONE AN Flood depths of 1 to 3 feet(usually areas of ponding); Base Flood rating purposes only and should not be used as the sale source of flood 25 x Elevations determined. elevation information. Accordingly, flood elevation data presented in the FIS ZONE AO Flood depths of 1 to 3 feet (usually sheet flow on sloping terrain); report should be utilized in conjunction with the FIRM for purposes of average depths determined. For areas of alluvial fan flooding,velocities rm construction and/or floodplain management. 27 26 9O ZONE AR S also dete ined. o p ecial Flood Heard Area formerly protected from the 1%annual Coastal Base Flood Elevations shown onthis map apply only landward chance flood by a flood control system that w subsequently of 0.0' North American Vertical Datum of 1988(NAND 88). Users of this decertified. Zone AR indicates that the former flood control system is FIRM should be aware that coastal flood elevations are also provided in the being restored to provide protection from the 1% annual chance or Summary of Stillwater Elevations table in the Flood Insurance Study report greater flood. for this jurisdiction. Elevations shown in the Summary of Stillwater Elevations ZONE A99 Area to be protected from 1% annual chance Flood by a Federal table should be used for construction and/or floodplain management purposes flood protection system under construction; no Base Flood Elevations when they are higher than the elevations shown on this FIRM. determined. ZONE V Coastal Flood sone with velocity hazard(wave action); no Base Flood Boundaries of the floodways were computed at cross sections and interpolated Elevations determined. between cross sections. The floodways were based on hydraulic considerations ZONE VE Coastal flood zone with velocity heard (wave action); Base Flood with regard to requirements of the National Flood Insurance Program. Floodway Elevations determined. widths and other pertinent floodway data are provided in the Flood Insurance Study report for this jurisdiction. FLOODWAY AREAS IN ZONE AE Certain areas not in Special Flood Hazard Areas may be protected by flood The floodway is the channel of a stream plus any adjacent floodplain areas that must be control structures. Refer to Section 2.4 "Flood Protection Measures" of kept free of encroachment so that the 1%annual chance Flood can be carried without the Flood Insurance Study report for information on flood control structures substantial increases in flood heights. for this jurisdiction. OTHER FLOOD AREAS The projection used in the preparation of this map was Universal Transverse Mercator (UTM) zone 12. The horizontal datum was NAD83, GRS1980 ZONE Areas of 0.2% annual chance flood; areas s of 1%annual chance flood a spheroid. Differences in datum, spheroid, projection or UTM zones used in with average depths of less than 1 foot or with drainage areas less than the production of FIRMS for adjacent jurisdictions may result in slight positional =hh hhhhh^ I+ 1 square mile; and areas protected by levees from 1%annual chance differences in map features across jurisdiction boundaries. These differences 62 N GALLATIN COUNTY flood do not affect the accuracy of this FIRM. Q OTHER AREAS Flood elevations on this map are referenced to the North American Vertical UNINCORPORAT ED AREAS ZONEX Areas determined to be outside the 0.2%annual chance floodplain. Datum of 1988. These flood elevations must be compared to structure and 30002'/J ground elevations referenced to the same vertical datum. For information ZONE D Areas in which Flootl hazards are undetermined,but possible. regarding conversion between the National Geodetic Vertical Datum of 1929 and the North American Vertical Datum of 1988, visit the National Geodetic ® COASTAL BARRIER RESOURCES SYSTEM(CBRS)AREAS Survey website at httpi/—.ngs.noaa.gov/ or contact the National Geodetic Survey at the following address: OTHERWISE PROTECTED AREAS(OPAS) NGS Information Services CBRS areas and OPAs are normally located within or adjacent to Special Flood Hazard Areas. NOAA,N/NGS12 National Geodetic Survey Floodplain boundary SSMC-3,#9202 Fl-dway boundary 1315 East-West Highway Silver Spring,MD 20910-3282 - - Zone D boundary •��• CBRS and OPA boundary To obtain current elevation,description,and/or location information for bench marks shown on this map, please contact the Information Services Branch of the 0�Boundary dividing Special Flood Hazard Areas of different National Geodetic Survey at (301) 713-3242, or visit its website at Base Flood Elevations,flood depths or flood velocities. httpJ/—.ngs.noaa.gov/. ZONE A 35 513— Base Flood Elevation line and value;elevation in feet* Base map information shown on this FIRM was provided in digital format by the 34 36 (EL 987) Base Rood Elevation value where uniform within zone; Gallatin County GIS Department. hNv0 Boan elevation in feet- Referenced to the North American Vertical Datum of 198E(NAVD 88) �� eaho°Ea A A Cross seal.line This map reflects more detailed and up-to-date stream channel configurations „� 23 -------� Transact line than those shown on the previous FIRM for this jurisdiction. The floodplains �o and floodways that were transferred from the previous FIRM may have been Geographic coordinates referenced to the North American adjusted to conform to these new stream channel configurations. As a 9790730",32°2'30" Datum of 1983(NAD 83) result, the Flood Profiles and Floodway Data tables in the Flood Insurance 4z75000mN 1000meter Universal Transverse Mercator Itl ticks,cone 12 Study report(which contains authoritative hydraulic data)may reflect stream grid channel distances that differ from what is shown on this map. co o 6000000 M 5000 foot grid Lida: Alabama State Plane coordinate Corporate limits shown on this map are based on the best data available system,east zone(RPSZONE 0101), Transverse Mercator at the time of publication.Because changes due to annexations or de-annexations w may have occurred after this map was published,map users should contact ¢ h > DX5510 Benchmark(see explanation in Notes to users section of appropriate community officials to verity current corporate limit locations a 3 hL X this FIRM panel) Please refer to the separately printed Map Index for an overview map of the p (� - a M1.5 2'NerMile county showing the layout of map panels;community map repository addresses; r. and a Listing Of COmmunitles table containing National Flood Insurance Program so61 too.N' r ZONE A 0 MAP REPOSITORIES dates for each community as well as a listing of the panels on which each Rater to Map Repositories Ile/on Map Index community is located. ( EFFECTIVE DATE OF COUNTYWIDE Contact the FEMA Map Service Center at 1-800-358-9616 for information on FLOOD INSURANCE RATE MAP available products associated with this FIRM. Available products may include September 2,2011 previously issued Letters of Map Change, a Flood Insurance Study report, EFFECTIVE DATE(S)OF REVISION(S)TO THIS PANEL and/or digital versions of this map.The FEMA Map Service Center may also be reached by Fax at 1-800-358-9620 and its website at httpJ/—.msc.fema.gov/. If you have questions about this map or questions concerning the National Flood Insurance Program in general,please call 1-877-FEMA MAP(1-877-336-2627) or visit the FEMA website at http://—.fema.gov/. T.1 S. Forp scary ca fIly map revision history prior to muntywiee mapping,refer to the Community T.1 S. Ma Hi table Gate in the Flood Ineu2nce Study report for this jurisdiction. T.2$. To determine if flood insurance is available in this community, contact your insurance agent or call the National Flood Insurance Program at 1-800-638-6520. 4 MAP SCALE 1"=500, 250 0 5W '0%ET METERS ISO I NOTE:MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 1 SOUTH,RANGE 6 EAST AND ® PANEL 0829D TOWNSHIP 2 SOUTH,RANGE 6 EAST. klik FIRM m FLOOD INSURANCE RATE MAP ® GALLATIN COUNTY, m MONTANA m so60Won N AND INCORPORATED AREAS 2 1 PANEL 829 OF 1725 3 (SEE MAP INDEX FOR FIRM PANEL LAYOUT) m CONTAINS: COMMUNITY NUMBER PANEL SUFFIX GALLATIN COUNTY 30W27 as. D DRIVE O�oH Notice to Usual:The Map NumWr shown below sIhoua be used when planing map o,do,,;the community Wmbar shown above should bused on msurence applications for the subject � mmuniry. a MAPNUMBER 30031CO829D 45.41'15.0 as^arl s.o" EFFECTIVE DATE 11058»7.5" JOINS PANEL 0837 11056'15.0" SEPTEMBER 2,2011 Federal Emergency Management Agency