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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. TOWN OF WILLIAMSBURG 080028 484000m E JOINS PANEL 0643 487000m E 105011 '15.00" 38022'30.00" 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. 4247000m N Coastal Base Flood Elevations shown on this map apply only landward of 0.0' North American Vertical Datum of 1988 (NAVD 88). Users of this FI RM 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 the elevations shown on this FIRM. 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 13. The horizontal datum was NAD83, GRS1980 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. 4246000m N 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.gov/ or contact the National Geodetic Survey at the following address: NGS Information Services NOAA, N/NGS12 National Geodetic Survey SSMC-3, #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/. 4245000m N Base map information shown on this FIRM was provided in digital format by Fremont County Regional GIS Authority. This map reflects more detailed and up-to-date stream channel configurations 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. 4244000m N 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/. If you have questions about this map or questions conceming the National Flood Insurance Program in general, please call1-877-FEMA MAP(1-877-336-2627) or visit the FEMA website at http://www.fema.gov/. 4243000m N LO LO ex> o ...I W Z <( a.. C/) z 5 ..., 4242000m N 4241000m N 23 24 FREMOr\lT CUUNTY TOWN OF ROCKV ALE + ZONE X >-w 1-...1 Z~ ::>~ 00 00 I-a: Zu. 00 ~z ~~ U.I~ TOWN OF ROCKV ALE 080221 26 + LO LO ex> o ...I W Z <( a.. C/) z 5 ..., 4 000m JOINS PANEL 0644 88 E THIS AREA SHOWN AT A SCALE OF 111 = 500' ON MAP NUMBER 08043C0857 T. 19 S. T. 20 S. T. 19 S. T. 20 S. + + c~e-v.. 1\O~ $01).1; 6 1 FREMONT COUNTY UNINCORPORATED AREAS 080067 + + + I + I + I 12 7 ZONE X 14 + + + 13 ~~ 00'> .....<0 a: a: & 38018'45.00" 105011'15.00" JOINS PANEL 0870 JOINS PANEL 0870 4 Second Alkali Creek + ZONE X + I 17 ". LEGEND SPECIAL FLOOD HAZARD AREAS (SFHAs) SUBJECT TO INUNDATION BY THE 1% ANNUAL CHANCE FLOOD 105007'30.00" 38022'30.00" The 1% annual chance flood (l00-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 Rood Hazard Area is the area subject to flooding by the 1% annual chance flood. Areas of Special Rood Hazard indude Zones A, Af, AH, AO, AR, A99, V and VE. The Base Rood Elevation is the water-surface elevation of the 1% annual chance flood. ZONE A No Base Flood Elevations determined. ZONE AE Base Rood Elevations determined. ZONE AH Rood depths of 1 to 3 feet (usually areas of ponding); Base Rood Elevations determined. ZONE AO Rood 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 Rood 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 A99 Area to be protected from 1% annual chance flood by a Federal flood protection system under construction; no Base Rood Elevations determined. ZONE V Coastal flood zone with velocity hazard (wave action); no Base Rood Elevations determined. ZONE VE Coastal flood zone with velocity hazard (wave action); Base Rood 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 inaeases in flood heights. OTHER FLOOD AREAS ZONE X 0 0 m 0 ..J CJ W Z <( a.. ZONE X en ZONE D ~ 0 ..., ~ ~ 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. OTHER AREAS Areas determined to be outside the 0.2% annual chance floodplain. Areas in which flood hazards are undetermined, but possible. 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. Roodplain boundary Roodway boundary Zone D boundary CBRS and OPA boundary Boundary dividing Special Rood Hazard Areas of different Base Flood Elevations, flood depths or flood velocities. ................. ,.. ~ 513,.. Base Flood Elevation line and value; elevation in feet* (EL 987) Base Rood Elevation value where uniform within zone; elevation in feet* * Referenced to the North American Vertical Datum of 1988 (NAVO 88) @ @ @---------@ Ooss section line Transect line 97"0730",32"22'30- Geographic coordinates referenced to the North American Datum of 1983 (NAD 83) l00Q-meter Universal Transverse Mercator grid ticks, zone 13 5000-foot grid ticks: Alabama State Plane coordinate system, east zone (APSZONE 0101), Transverse Mercator 4275000mN 6??oo00 M DX551 0 X Bench mark (see explanation in Notes to Users section of this FIRM panel) . M1.5 River Mile MAP REPOSITORIES Refer to Map Repositories list on Map Index EFFECTIVE DATE OF COUNTYWIDE FLOOD INSURANCE RATE MAP September 19, 2007 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 Rood 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. . MAP SCALE 111 = 1000' 500 0 1000 I H H I I ~ET I METERS 600 f-----l ~ ~ 300 0 I 300 o o m o ...I W Z <( a.. en z o ..., Federal Emergency Management Agency PANEL 0860E I FIRM FLOOD INSURANCE RATE MAP FREMONT COUNTY, COLOR.J\DO AND INCORPORATED AREAS PANEL 860 OF 925 (SEE MAP INDEX FOR FIRM PANEL LAYOUT) CONTAINS: COMMUNITY NUMBER PANEL SUFFIX FREMONT COUNTY ROCKVALE, TOWN OF WILLIAMSBURG, TOWN OF 0860 0860 0860 E E E 080067 080221 080028 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 08043C0860E EFFECTIVE DATE SEPTEMBER 19, 2007