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NOTES TO USERS map is for use in administering the National Flood Insurance Program. It not necessarily identify all areas subject to flooding, particularly from local sources of small size. The community map repository should be consulted for possible updated or additional flood hazard information. 2175000 FT obtain more detailed information in areas where Base Flood Elevations and/or floodways have been determined, users are encouraged to consult Flood Profiles and Floodway Data and/or Summary of Stillwater Elevations contained within the Flood Insurance Study (FIS) report that accompanies FIRM. Users should be aware that BFEs shown on the FIRM represent whole-foot elevations. These BFEs are intended for flood insurance 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 utilized in conjunction with the FIRM for purposes of construction and/or floodplain management. -108020' 38.40" 3r 22' 30.00" (U(U ~~ .j:::..(.V ~~ Montezuma County U nincorpo rated Areas 080285 1270000 FT Coastal Base Flood Elevations shown on this map apply only landward of 0.0' American Vertical Datum of 1988 (NA VD88). Users of this FIRM should be aware that coastal flood elevations are also provided in the Summary of Stillwater Elevations table in the Flood Insurance Study report for this jurisdiction. Elevations shown in the Summary of Stillwater Elevations table should be used for construction.. and/or. floodplain.. management .purposes when. they .are..higher..than elevations shown on this FIRM. l.() cO (Y) 0::: o U) 13 Boundaries of the floodways were computed at cross sections and interpolated between cross sections. The floodways were based on hydraulic considerations with regard to requirements of the National Flood Insurance Program. Floodway widths and other pertinent floodway data are provided in the Flood Insurance Study report for this jurisdiction. 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 Flood Insurance Study report for information on flood control structures for this jurisdiction. The projection used in the preparation of this map was Universal Transverse Mercator (UTM) zone 12. 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. + Flood elevations on this map are referenced to the North American Vertical Datum of 1988 (NA VD 88). 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.gov/ or contact the National Geodetic Survey at the following address: NGS Information Services NOAA, N/NGS12 National Geodetic Survey SSMC-2, #9202 1315 East-West Highway Silver Spring, MD 20910-3282 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 http://www . ngs. noaa.gov/. Base Map information shown on this FIRM was provided in digital format by Montezuma County. These data are current as of 2006. Thisrnap refleCtsrnore detailed. arid up..to-date. stream channel configurations and floodplain delineations than those shown on the previous FIRM for this jurisdiction. The floodplains and floodways that were transferred from the previous FIRM may have been adjusted to conform to these new stream channel configurations. As a result, the Flood Profiles and Floodway Data tables in the Flood Insurance Study Report (which contains authoritative hydraulic data) may reflect stream channel distances that differ from what is shown on this map. 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. 1265000 FT Please refer to the separately printed 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. I.{) I.{) ro o .....l UJ z If (/) z o J Contact 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/. East Fork-Mud Creek 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://www.fema.gov/. Montezuma Vertical Datum Offset Table Flooding Source Chicken Creek Lost Canyon Creek Mancos River Vertical Datum Offset (ft) 4.0 4.0 4.0 Example: To convert Chicken Creek elevations to NAVD 88, 4.0 feet were added to the NGVD 29 elevations. Panel Location ...../' ........ ........ ........ ........ ........ ............ ........ ........ ..........-// ........ ........ ............ ,,/ ........ ........ ",'" ....'" "'.... o\,\c':./"'...."'''''''.... (>.a.~~..../ ",'" /"", ////' ////// A //// / // / / / / / / / / / / / / / / /~ o~ ~s 25 x Ihis.DigitaLElood .....lns.llranceRate. Map.. (PERM) . was... prodllcedthrollgh. ..a Cooperating Technical Partner (CTP) agreement between the State of Colorado Water Conservation Board (CWCB) and the Federal Emergency Management Agency (FEMA). 1260000 FT Additional Flood Hazard information and resources are available from local communities and the Colorado Water Conservation Board. 3r 20' 38.40" -108020' 38.40" 736000mE JOINS PANEL 0650 x 18 ....'" ",/ ",'" """,,,,,/'/ /.... ....'" /'" ........ /'" ",,,,'" ...."'''' ",'" ......../ ....'" ........ ,-/// ........ ",,,,'" ",,,,'" ...."'''' ........ "'.... ........ ,,/ "'....'" "'.... /'" ",'" ....'" "''''.... /,.../ ........ ........ ",'" ",/ ....'" ",'" "'....'" ....'" Ci) (Y) 0::: o U) 19 2180000 FT I \ I I I \ \ I - ~ ",'" ...."'.... ",'" ...."'........\ "'..../' ........'" ........ ........'" ",'" I ",,,,'" ",/'" ........ "'........ ",'" ",,,,'" ........ "'.... ........'" ....'" ........ ....'" ",'" ....'" ...."'''' ........ "'....'" ",'" "'.... ",,,,'" ....'" ///,/ ",/ ",'" ........ "'.... "'.... "'....'" ....'" "'.... ",/ "''''.... (U?J ~~ .j:::..(.V ~~ JOINS PANEL 0854 30 NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 36 NORTH, 080285 -1080 18' 46.80" 17 20 ,/'//// /// /'''//.// OVc\. ",,,,/// 1'\0.\,\":......"''''''' r",'" .......... ",'" .......... "'..... ",'" 29 -108018'46.80" N SPECIAL FLOOD HAZARD AREAS (SFHAS) SUBJECT TO INUNDATION BY THE 1 % ANNUAL CHANCE FLOOD 3r 22' 30.00" The 1% annual chance flood (lOa-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 Flood Hazard include Zones A, AE, AH, AO, AR, A99, V, and VE. The Base Flood Elevation is the water-surface elevation of the 1% annual chance flood. ZONE A ZONE AE ZONE AH No Base Flood Elevations determined. Base Flood Elevations determined. Flood depths of 1 to 3 feet (usually areas of ponding); Base Flood Elevations determined. Flood depths of 1 to 3 feet (usually sheet flow on sloping terrain); average depths determined. For areas of alluvial fan flooding, velocities also determined. ZONE AR Special Flood Hazard Area Formerly protected from the 1% annual chance flood by a flood control system that was subsequently decertified. Zone AR indicates that the former flood control system is being restored to provide protection from the 1% annual chance or greater flood. ZONE AO ZONE ASS Area to be protected from 1% annual chance flood by a Federal flood protection system under construction; no Base Flood Elevations determined. ZONE V Coastal flood zone with velocity hazard (wave action); no Base Flood Elevations determined. ZONE VE Coastal flood zone with velocity hazard (wave action); Base Flood Elevations determined. 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. OTHER FLOOD AREAS ZONE X Areas of 0.2% annual chance 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. 4139000mN OTHER AREAS ZONE X ZONE D Areas determined to be outside the 0.2% annual chance floodplain. Areas in which flood hazards are undetermined, but possible. ~~~'\1 COASTAL BARRIER RESOURCES SYSTEM (CBRS) AREAS OTHERWISE PROTECTED AREAS (OPAs) CBRS areas and OPAs are normally located within or adjacent to Special Flood Hazard Areas. Floodplain boundary ............ Floodway boundary Zone D Boundary CBRS and OPA boundary Boundary dividing Special Flood Hazard Areas of different Base Flood Elevations, flood depths or flood velocities. Base Flood Elevation line and value; elevation in feet* Base Flood Elevation value where uniform within zone; elevation in feet* * Referenced to the North American Vertical Datum of 1988 (NAVD 88) ~ 513 -- (EL 987) @---0 Cross section line Trahsect line 9r 01' 30.00" 320 22' 30.00" Geographic coordinates referenced to the North American Datum of 1983 (NAD 83) <.0 I.{) co o .....l UJ Z ct (/) z o J 427SooomN 1000-meter Universal Transverse Mercator grid ticks, zone 12 6000000 FT 5000-foot ticks: Colorado State Plane coordinate system, south zone (FIPSZONE 0503), Lambert Conformal Conic projection DX5510 X Bench mark (see explanation in Notes to Users section of this FIRM panel) M1.5 River Mile . 4138000mN MAP REPOSITORIES Refer to Map Repositories list on Map Index EFFECTIVE DATE OF COUNTYWIDE FLOOD INSURANCE RATE MAP SEPTEMBER 26, 2008 EFFECTIVE DATE(S) OF REVISION(S) TO THIS PANEL 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 MAP SCALE 1" = 500' 500 1000 FEET o METERS 300 150 o 150 413loomN ~ I (SEE MAP INDEX FOR FIRM PANEL LAYOUT) CONTAINS: COMMUNITY MONTEZUMA COUNTY NUMBER 080285 PANEL 0852 SUFFIX C 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. 3r 20' 38.40" Management