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NOTES TO USERS This map is for use in administering the National Flood Insurance Program. It does not necessarily identify all areas subject to flooding, particularly from local drainage sources of small size. The community map repository should be consulted for possible updated or additional flood hazard information. 3145000 FT 3140000 FT I LEGEND SPECIAL FLOOD HAZARD AREAS (SFHAs) SUBJECT TO INUNDATION BY THE 10/0 ANNUAL OiANCE FLOOD The 1% annual chance flood (100-year flood). also known as the base flood. is the flood 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 of Special Rood Hazard include Zones A. AE. AH. AO. AR. A99. V. and VE. The Base Rood Elevation is the water-surface elevation of the 1% annual chance flood. 104058' 07.5" 400 24' 22.5" JOINS PANEL 1215 1050 00' 00" 400 24' 22.5" To obtain more detailed information in areas where Base Flood Elevations (BFEs) and/or floodways have been determined, users are encouraged to consult the Flood Profiles and Floodway Data and/or Summary of Stillwater Elevations tables contained within the Flood Insurance Study (FIS) Report that accompanies this FIRM. Users should be aware that BFEs shown on the FIRM represent rounded whole-foot elevations. These BFEs are intended for flood insurance rating purposes only and should not be used as the sole source of flood elevation information. Accordingly, flood elevation data presented in the FIS Report should be utilized in conjunction with the FIRM for purposes of construction and/or floodplain management. r--- I , Ffll71IeTS Ditch Larimer County Unincorporated Areas 080101 I >-,~ 1-0 zl- :>1eJ) o,~ 00 0::-' UJLL ~I,~ <(~ -10 l- I Town of Johnstown 080250 Boundaries of the floodways were computed at cross sections and interpolated between cross sections. The fIoodways were based on hydraulic considerations with regard to requirements of the National Flood Insurance Program. Floodway widths and other pertinent ftoodway data are provided in the Roadway Data table shown on this FIRM. 01 II ~.I II ~I il ~. + 1390000 FT + Certain areas not in Special Flood Hazard Areas may be protected by flood control structures. Refer to Section 2.4 "Flood Protection Measures" of the Rood Insurance Study Report for information on flood control structures for this jurisdiction. , I '- --------- FEMA recommends that a Rood Insurance Policy be purchased for structures in areas where levees are shown as providing protection from the 1% annual chance flood. Flooding is not covered by standard propertylfire/dwelling insurance policies nor is it covered by Homeowners Insurance, Renters Insurance, Condominium Owners Insurance, or Commercial Property Insurance. Contact your insurance agent and local floodplain administrator for further information. ZONE X 14 GREAT WESTERN RAILWA Y GREAT WESTERN RAILWAY ----- --- Visit htto://www.fema.QOv/odf/fhmlfnn Qsah.pdf for information on levees and the risk of flooding in areas shown as being protected by levees. COUNTY ROAD 20E I . I I I I . I I I Larimer County Unincorporated Areas 080101 The projection used in the preparation of this map was State Plane Colorado North (feet). The horizontal datum was NAD 83, GRS80 spheroid. Differences in datum, spheroid, projection or UTM zones used in the production of FIRMs for adjacent jurisdictions may result in slight positional differences in map features across jurisdiction boundaries. These differences do not affect the accuracy of this FIRM. ZONE X 15 Flood elevations on this map are referenced to the North American Vertical Datum of 1988. These flood elevations must be compared to structure and ground elevations referenced to the same vertical datum. For information regarding conversion between the National Geodetic Vertical Datum of 1929 and the North American Vertical Datum of 1988, visit the National Geodetic Survey website at http://www.ngs.noaa.govor contact the National Geodetic Survey at the following address: Town of Johnstown 080250 Spatial Reference System DMsion National Geodetic Survey, NOAA Silver Spring Metro Center 1315 East-West Highway Silver Spring, Maryland 20910 (301) 713-3191 . l LARIMER COUNTY - ---r'OWN"OFJOHNSroWrr- -I o ZONEX. To obtain current elevation, description, and/or location information for bench marks shown on this map, please contact the Information Services Branch of the National Geodetic Survey at (301) 713- 3242, or visit its website at htto://www.nas.noaa.gov. Base map information shown on this FIRM was provided by the Larimer County GIS and Mapping Department Additional input was provided by the City of Fort Collins Geographic Information Service DMsion. These data are current as of 2005. The profile baselines depicted on this map represent the hydraulic modeling baselines that match the flood profiles in the Flood Insurance Study report. As a result of improved topographic data, the profile baseline, in some cases, may deviate signifICantly from the channel centerline or appear outside the Special Flood Hazard Area. Corporate limits shown on this map are based on the best data available at the time of publication. Because changes due to annexations or de-annexations may have occurred after this map was published, map users should contact appropriate community officials to verify current corporate limit locations. Please refer to the separately printed Map Index for an overview map of the county showing the layout of map panels; community map repository addresses; and a Listing of Communities table containing National Flood Insurance Program dates for each community as well as a listing of the panels on which each community is located. Contact the FEMA Map Service Center at 1-800-358-9616 for information on available products associated with this FIRM. Available products may include previously issued Letters of Map Change, a Flood Insurance Study Report, 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 http://www.msc.fema.gov. 1385000 FT LARIMER COUNTY ----- TOWN OF JOHNSTOWN If you have questions about this map or questions concerning the National Flood Insurance Program in general, please call 1- 877- FEMA MAP (1-871-336-2621) or visit the FEMA website at http://www.fema.gov. Town of Johnstown 080250 Rooding Source Larimer County Vertical Datum Offset Table Vertical Datum Offset (ft) 3.2 w C) I <( I i I W , ~~(J) TOWN OF JOHNSTOWN ----------------- . ~ , LARIMER COUNTY , . . , , . . , , . , Larimer County Unincorporated Areas 080101 0.. o ZONE X Vertical Datum Offset (ft) Flooding Source Town of Johnstown 080250 22 Big Thompson River (Downstream from limit of Detailed Study to Approx. 2400' Downstream of Cedar Creek) ~~ ~& o~ 04. ~4 ----------- @ I l.. ~- ~- r-----' ~ .., ) " , '--- .. .../ Example: To convert Big Thompson River elevations to NAVD 88. 32 feet were added to the NGVD 29 elevations. Panel Location Map I I I I I I I . I .--------1 . . Larimer County Unincorporated Areas 080101 . \ , \ , \ , \ I , . ----------J w z ::s ~ o ...l ...l o :I: C) ai '-------, I f402\ 14TH STREETI ~ COUNTY ROAD 18 I w > n: a z o I- 0:: <( a . I · 1 I , I I I 11.- - LARIMER COUNTY ------, I TOWN OF JOHNSTOWN L___ . I + 400 22' 30" 104058' 07.5" ZONE X w ('I) a <( o 0:: ~ Z ::> o o Town of Johnstown 080250 This Digital Flood Insurance Rate Map (DF1RM) was produced through a Cooperating Technical Partner (CTP) agreement between the Stale of Colorado Water ConseJ'Vation Board and the Federal Emergency Management Agency (FEMA). 27 26 + 1380000 FT 400 22' 30" 1050 00' 00" . JOINS PANEL 1405 Additional Flood Hazard Infonnation and resources are available from local communities and the Colorado Water Conservation Board. S02000m E S01000mE NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 5 NORTH, RANGE 68 WEST. ZONE A ZONEAE ZONE AH No Base Rood Elevations determined. Base Rood Elevations determined. Rood depths of 1 to 3 feet (usuaRy areas of ponding); Base Rood Elevations determined. Rood depths of 1 to 3 feet (usually sheet flow on sloping tenain); average depths determined. For areas of alluvial fan flooding, velocities also determined. Special Aood Hazard Areas formerly protected from the 1% annual chance flood by a flood motrol system that: was subsequently decert:ffied. Zone AR indicates that the former flood motrol system is being restored to provide protection from the 1% annual chance or greater flood. Area to be protected from 1 % annual chance flood by a federal flood protection system under construction; no Base Rood Elevations determined. ZONEAO ZONEAR ZONE A99 FLOODWAY AREAS IN ZONE AE The floodway is the channel of a stream plus any adjacent floodplain areas that must be kept free of encroachment so that the 1% annual chance flood can be carried without substantial increases in flood heights. t.... , OTHER FLOOD AREAS ZONE X Areas of 0.2% annual dlance flood; areas of 1% annual chance flood with average depths of less than 1 foot or with drainage areas less than 1 square mile; and areas protected by levees from 1% annual chance flood. OTHER AREAS ZONE X ZONED Areas determined to be outside the 0.2% annual chance floodplain. Areas in which flood hazards are undetermined, but possible. Roodplain boundary Aoodway boundary Zone D boundary *lzmm N Boundary dividing Special Rood Hazard Area zones and boundary dividing Spedal flood Hazard Areas of different Base Rood Elevations, flood depths or flood velodties. Base Flood Elevation line and value; elevation in feet* Base Flood Elevation value where uniform within zone; elevation in feet* .. ~ 513 .""""..., (EL 981) *Referenced to the North American Vertical Datum of 1988 o @ Cross section line 104050' 37.511 . 39030' 00" Geographic coordinates referenced to the North American Datum of 1983 {NAD 83}, Western Hemisphere SOOO-foot ticks: Colorado State Plane coordinate system, North zone, Lambert conformal Conic projection lOGO-meter Universal Transverse Mercator grid ticks, zone 13 3180000 FT 4276000 mN KK6400 X National Geodetic SUrvey bench mark (see explanation in Notes to Users section of this fIRM panel) Big Thompson River MAP REPOSITORY Refer to listing of Map Repositories on Map Index Big Thompson River EFFECTIVE DATE OF COUNTYWIDE flOOD INSURANCE RATE MAP DECEMBER 19, 2006 EFFECTIVE DATE{S) OF REVlSION{S) TO THIS PANEL ...J W Z ~ en ~ o ...., ~1000mN For community map revision history prior to countywide mapping, refer to the Community Map History table located in the Flood Insurance Study report for this jurisdiction. To determine if flood insurance is available in this community, contact your insurance agent or call the National Flood Insurance Program at 1-800-638-6620. .. 250 0 MAP SCALE 1" = 500- 500 1000 FEET I METERS 300 ........ ........ _____ t---I 150 0 I 150 DImlI PANEL 1213F FIRM I ~0000m N F F FLOOD INSURANCE RATE MAP LARIMER COUNTY, COLORADO AND INCORPORATED AREAS PANEL 1213 OF 1420 (SEE MAP INDEX FOR FIRM PANEL LAYOUT) CONTAINS: COMMUNITY JOHNSTOWN, TOWN OF LARIMER COUNTY NUMBER PANEl SUFFIX 1213 1213 080250 080101 Notice to User: The Map Number shown below should be used when placing map orders; the Community Number shown above should be used on insurance applications for the subject community. MAP NUMBER 08069C1213F EFFECTIVE DATE DECEMBER 19, 2006 Federal Emergency ~anagementJ\gency