1
, , , , , , , , , , P , , , P , , D D í í ) ) ) ) í í 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 Ñ Ñ JOINS PANEL 0455 JOINS PANEL 0470 JOINS PANEL 0530 JOINS PANEL 0445 ! ( ! ( ! ( ! ( T. 2 S. T. 3 S. R. 7 W. R. 6 W. T. 2 S. T. 3 S. R. 7 W. R. 6 W. Village of Lenzburg 170978 Village of New Athens 170632 ! ( VILLAGE OF LENZBURG ST. CLAIR COUNTY Village of Lenzburg 170978 ZONE A ZONE A ZONE A ZONE A ZONE A ! ( ! ( ZONE A ZONE A ZONE A ZONE A ZONE A ZONE A ZONE A ZONE A ! ( ZONE A ZONE A ZONE A ZONE X ZONE AE ! ( ZONE X ZONE X ZONE X ZONE X ! ( ! ( ZONE X ! ( ! ( ! ( ZONE X ZONE X ZONE X ZONE X ZONE X ZONE X ! ( ZONE X ZONE X ! ( ZONE X ZONE X ZONE X ILLINOIS CENTRAL RAILROAD DORMARU DR JUANITA LN PRISCILLA CT BROOKE LN SCENIC LAKE DR KEEL DR PEARL CT ! ( ( 13 BALDWIN RD / Doza Creek Doza Creek 6 27 6 67 6 27 SCHALLER RD VILLAGE OF LENZBURG ST. CLAIR COUNTY ZONE A ! ( ! ( ZONE A ! ( INDUSTRIAL RAILROAD INDUSTRIAL RAILROAD LINDAUER LANDING STRIP LIMIT OF DETAILED STUDY 408 409 409 408 412 410 412 415 416 416 412 412 PROFILE BASELINE PROFILE BASELINE Unnamed Rd ZONE AE A B B A B C D C Unnamed Tributary to Doza Creek Doza Creek ZONE AE FLOODING EFFECTS FROM DOZA CREEK 1% ANNUAL CHANCE FLOOD DISCHARGE CONTAINED IN CULVERT PROFILE BASELINE WINTER RD (EL 412) ! ( Unnamed Tributary to Doza Creek St. Clair County Unincorporated Areas 170616 St. Clair County Unincorporated Areas 170616 St. Clair County Unincorporated Areas 170616 St. Clair County Unincorporated Areas 170616 Village of Marissa 171058 ! ( VILLAGE OF MARISSA ST. CLAIR COUNTY ! ( ! ( ! ( ! ( ! ( 38º 15 00 89º 52 30 38º 15 00 89º 48 45 89º 52 30 38º 18 45 89º 48 45 38º 18 45 7 9 4 1 2 3 6 30 18 25 26 19 16 27 15 12 10 13 11 14 21 36 22 35 31 33 34 23 24 BALDWIN RD / SCHMOLL RD ( 13 WINTER RD SCHALLER RD HANFT RD GOLDEN RULE MINE RD BAER RD / E DUTCH HILL SCHOOL RD ( OLD 13 LENZBURG NORTH RD LOST DOG RD ROCK RD WATERLOO RD HILLSTOWN RD SCHNEIDER RD N RECREATION ACRES ST W DUTCH HILL SCHOOL RD KATIE LN FRIENDSHIP RD NUERNBERGER RD OLD BALDWIN RD TORRENS LN ERIKA LN S CHARLES ST VINEGAR HILL RD TINA LN HAAS LN ASHLEY LN LAKESHORE ST MARU LN JB1225 JB1226 77 4 000m E 77 5 000m E 77 6 000m E 77 7 000m E 77 8 000m E 42 39 000m N 42 40 000m N 42 41 000m N 42 42 000m N 42 43 000m N 42 44 000m N 42 45 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 465 OF 555 MAP NUMBER 17163C0465E PANEL 0465E MAP REVISED LENZBURG, VILLAGE OF MARISSA, VILLAGE OF NEW ATHENS VILLAGE OF ST. CLAIR COUNTY 0465 0465 0465 0465 170978 170158 170632 170616 E 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 .

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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

The floodway is the channel of a stream plus any adjacent floodplain areas that must be kept free ofencroachment 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 withaverage 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 BaseFlood Elevations, flood depths or flood velocities.

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NOTES TO USERS

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