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D D D D D D D D D D D D D D D 7 7 7 . . . 7 7 . . . . Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ JOINS PANEL 0205 JOINS PANEL 0070 JOINS PANEL 0230 JOINS PANEL 0220 THIS AREA SHOWN AT A SCALE OF 1 = 500 ON MAP NUMBER 17163C0206 St. Clair County Unincorporated Areas 170616 St. Clair County Unincorporated Areas 170616 St. Clair County Unincorporated Areas 170616 St. Clair County Unincorporated Areas 170616 St. Clair County Unincorporated Areas 170616 St. Clair County Unincorporated Areas 170616 City of O’Fallon 170633 City of O’Fallon 170633 City of O’Fallon 170633 City of O’Fallon 170633 Village of Shiloh 171043 Village of Shiloh 171043 City of O’Fallon 170633 City of O’Fallon 170633 ! ( ! ( ! ( ! ( ! ( ! ( ! ( ST. CLAIR COUNTY CITY OF O'FALLON CITY OF O'FALLON ST. CLAIR COUNTY ST. CLAIR COUNTY CITY OF O'FALLON VILLAGE OF SHILOH ST. CLAIR COUNTY VILLAGE OF SHILOH CITY OF O'FALLON CITY OF O'FALLON VILLAGE OF SHILOH 17 21 20 29 28 30 25 36 31 32 5 6 1 4 33 16 R. 8 W. R. 7 W. T. 2 N. T. 1 N. T. 2 N. T. 1 N. ZONE X ZONE X ZONE X ZONE X ZONE X ZONE X ZONE X ZONE X ZONE X ZONE A ZONE A ZONE A ZONE AE ZONE X ZONE X ZONE A ZONE A ZONE A ZONE X ZONE AE LIMIT OF DETAILED STUDY ! ( ! ( ! ( Richland Creek PROFILE BASELINE FLOODING EFFECTS FROM RICHLAND CREEK ! ( Engle Creek PROFILE BASELINE ! ( ! ( ! ( ZONE X ! ( ! ( ZONE X LIMIT OF DETAILED STUDY ! ( ZONE X ! ( ZONE A ! ( Rock Spring Branch Engle Creek Engle Creek ! ( ! ( N SEVEN HILLS RD KELLER LN HILLTOP DR CARDIFF CT GREYSTONE PL THORNBURY PL NOTTINGHILL DR VICTORIA LN OXFORD HILL RD COACHLIGHT RD WILDWOOD LN DEER CREEK RD SCHWARZ RD STONE CREEK DR N SMILEY ST GASTORF CT HIGHLAND ESTATES DR GLEN OAK DR CEDAR RIDGE DR RED FOX TRL HUNTINGDON RIDGE CT BRANDONWOOD DR DEER RUN DEMPCY LN AMBERLEAF CT LAUREL HEIGHTS CT TANGLEWOOD TRCE APPLEWHITE RD HUNTERS PT BLACKBERRY LN PLUM TREE CT LORIEN CT JAIME LN OLD VINCENNES TRL TIMBER OAK DR N SEVEN HILLS RD S SMILEY ST WEBER RD 1 50 WILLARD DR PEPPERIDGE DR E 3RD ST TURTLE CREEK CT TIMBER CREEK LN CRISNIK DR PEPPERWOOD CT TREELINE CT SHORELINE DR PRIVATE ESTATES DR N MAIN ST OAK RIDGE CT OAK HOLLOW CT OAK MEADOW DR COUNTRY OAKS LN LAKEPOINTE CENTRE DR HAWTHORNE PL CREEKSIDE CT COTTONWOOD CT WOODS WAY LAKEPOINTE ESTATE DR WINDHAM WAY KENSINGTON PL MANSION WAY EDGEWOOD DR DARTMOUTH DR ¦ 64 CROSS ST 1 50 W STATE ST E STATE ST E THIRD ST CAMBRIDGE BLVD 1 50 N GREEN MOUNT RD W WASHINGTON ST E WASHINGTON ST W FOURTH ST S WALNUT ST SPRUCE ST CHARLES ST W FIFTH ST ANNE AVE ALMA ST EDWARD ST N OAK ST N CHERRY ST S LINCOLN AVE W FIRST ST DOUGLAS AVE S LAWN AVE WESTWOOD DR HICKORY ST E SECOND ST ¦ 64 CSX CSX CSX AIR MOBILITY DR / FRANK SCOTT PKWY EAST PIERCE BLVD CENTRAL PARK DR TAMARACK LN N GREEN MOUNT RD LAKE LUCERNE DR CORLISS CT DUNBAR CT HIGH VALLEY LN FRANK SCOTT PKWY EAST GREEN MOUNT CROSSING DR FOUNTAIN LAKES DR GREENFIELD PL LAUREN LAKE DR GENEVA LAKE DR MERIDIAN LAKE DR CASCADE LAKE DR FLORA LAKE CT 535 533 531 528 ! ( , D , AU 526 ZONE X ! ( ! ( ! ( ZONE X 522 ! ( ! ( ! ( 543 R. 8 W. R. 7 W. ZONE A ! ( ZONE A ! ( ZONE A ( 158 Private Dr ZONE AE ! ( ZONE X ! ( 528 W THIRD ST OLD RAILROAD GRADE 38º 33 45 89º 56 15 38º 33 45 89º 52 30 89º 56 15 38º 37 30 89º 52 30 38º 37 30 524 525 523 527 530 542 543 524 , AS , AQ , AU , AR , AT JB1364 JB1365 JB1366 JB1442 JB1441 JB1443 JB1367 JB1440 JB1439 JB1369 76 7 000m E 76 8 000m E 76 9 000m E 42 77 000m N 42 78 000m N 42 79 000m N 77 0 000m E 77 1 000m E 42 73 000m N 42 74 000m N 42 76 000m N ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Floodway boundary Zone D boundary 0.2% annual chance floodplain boundary 1% annual chance floodplain boundary *Referenced to the North American Vertical Datum of 1988 D ! ! ! ! ! ! ! ! ! ! ! ! ! ! LEGEND SPECIAL FLOOD HAZARD AREAS (SFHAs) SUBJECT TO INUNDATION BY THE 1% ANNUAL CHANCE 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 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 No Base Flood Elevations determined. ZONE AE Base Flood Elevations determined. ZONE AH Flood depths of 1 to 3 feet (usually areas of ponding); Base Flood Elevations determined. ZONE AO 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 Areas 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 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. OTHER AREAS ZONE X Areas determined to be outside the 0.2% annual chance floodplain. ZONE D 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. 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* 513 (EL 987) Base Flood Elevation value where uniform within zone; elevation in feet* Cross section line Transect line 45° 02 08 , 93° 02 12 Geographic coordinates referenced to the North American Datum of 1983 (NAD 83) Western Hemisphere 49 89 000m N 1000-meter Universal Transverse Mercator grid values, zone 15 DX5510 Bench mark (see explanation in Notes to Users section of this FIRM panel) M1.5 River Mile A A 23 23 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. COMMUNITY NUMBER PANEL SUFFIX CONTAINS: Federal Emergency Management Agency (SEE MAP INDEX FOR FIRM PANEL LAYOUT) FLOOD INSURANCE RATE MAP FIRM NATIONAL FLOOD INSURANCE PROGRAM NFIP PRELIMINARY PANEL 210 OF 555 MAP NUMBER 17163C0210E PANEL 0210E MAP REVISED O'FALLON, CITY OF SHILOH, VILLAGE OF ST. CLAIR COUNTY 0210 0210 0210 170633 171043 170616 E E E ST. CLAIR COUNTY, ILLINOIS AND INCORPORATED AREAS MAP SCALE 1" = 1000’ MAP SCALE 1" = 1000’ FEET 500 0 2000 1000 METERS 300 300 0 600 MAP REPOSITORY Refer to listing of Map Repositories on Map Index EFFECTIVE DATE OF COUNTYWIDE FLOOD INSURANCE RATE MAP November 5, 2003 EFFECTIVE DATE(S) OF REVISION(S) TO THIS PANEL (Date of Revision) - to add Special Flood Hazard Areas and roads and road names; to change Base Flood Elevations, Special Flood Hazard Areas and floodway; to update corporate limits; to incorporate previously issued Letters of Map Revision; and to add Special Flood Hazard Areas previously shown on Madison County, Illinois Flood Insurance Rate Map dated April 15, 1982. 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. 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. 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. Coastal BFEs shown on this map apply only landward of 0.0' North American Vertical Datum (NAVD 88). 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 community. 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 Floodway Data table shown on this FIRM. In the State of Illinois, any portion of a stream or watercourse that lies within the floodway fringe of a studied (AE) stream may have a state regulated floodway. The FIRM may not depict these state regulated floodways. Floodways restricted by anthropogenic features such as bridges and culverts are drawn to reflect natural conditions and may not agree with the model computed widths listed in the Floodway Data table in the Flood Insurance Study report. 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 15. 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. 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: Spatial Reference System Division National Geodetic Survey, NOAA Silver Spring Metro Center 1315 East-West Highway Silver Spring, Maryland 20910 (301) 713-3191 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 derived from Sanborn Map Company, Inc. Digital Orthophotos produced for St. Clair County, at a scale of 1:1,200 from photography dated 2005 or later. 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://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://www.fema.gov/business/nfip .
1

Unincorporated Areas - Illinois Floodmaps · dd d d d d d d d d d d d d 7 7 7... 7 7.... ÑÑ Ñ ÑÑ Ñ ÑÑ Ñ ÑÑÑÑ ÑÑ ÑÑÑÑ ÑÑ ÑÑÑÑ ÑÑ ÑÑÑÑ ÑÑ ˘ ˇ ˆˇ

Jul 19, 2018

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Page 1: Unincorporated Areas - Illinois Floodmaps · dd d d d d d d d d d d d d 7 7 7... 7 7.... ÑÑ Ñ ÑÑ Ñ ÑÑ Ñ ÑÑÑÑ ÑÑ ÑÑÑÑ ÑÑ ÑÑÑÑ ÑÑ ÑÑÑÑ ÑÑ ˘ ˇ ˆˇ

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LEGEND

SPECIAL FLOOD HAZARD AREAS (SFHAs) SUBJECT TOINUNDATION BY THE 1% ANNUAL CHANCE FLOOD

The 1% annual chance flood (100-year flood), also known as the base flood, is the flood that hasa 1% chance of being equaled or exceeded in any given year. The Special Flood Hazard Area isthe area subject to flooding by the 1% annual chance flood. Areas of Special Flood Hazardinclude 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 No Base Flood Elevations determined.

ZONE AE Base Flood Elevations determined.

ZONE AH Flood depths of 1 to 3 feet (usually areas of ponding); Base Flood Elevationsdetermined.

ZONE AO 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 Areas formerly protected from the 1% annual chanceflood by a flood control system that was subsequently decertified. ZoneAR 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 floodprotection system under construction; no Base Flood Elevations determined.

ZONE V Coastal flood zone with velocity hazard (wave action); no Base Flood Elevationsdetermined.

ZONE VE Coastal flood zone with velocity hazard (wave action); Base Flood Elevationsdetermined.

FLOODWAY AREAS IN ZONE AE

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OTHER FLOOD AREAS

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mile; and areas protected by levees from 1% annual chance flood.

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ZONE X Areas determined to be outside the 0.2% annual chance floodplain.

ZONE D Areas in which flood hazards are undetermined, but possible.

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