Louisville

ClayCounty

PANEL0675

PANEL0700

PANEL0850

PANEL0875

PANEL0688

457.6

457.7

454.1

457.8

459.8 460.5

446.8

458.1

453.6

451.3

447.2

447.8

448.2

449.2

448.6

450.3

449.3

449.0

450.0

449.7

LTL W

ABAS

H R

CROOKED CKTRB

LTL WABASH R

LTL WABASH R

NOTES

SCALE

0675 0700

0850 0875

0865

06880669

CLAYCOUNTY

±Map Projection:State Plane Illinois East; FIPS 1201; North American Datum 1983 HARN;Transverse Mercator Projection; Vertical Datum: NAVD88

fe e t0 1,000 2,000500

m e te rs0 250 500125

PANEL LOCATOR

LEGEND

MAP CREATED ON:08/17/2016

The technical content of the map is the responsibility of the authors.

The user assumes all liability for the interpretation and use of the map.

LITTLE WABASH WATERSHED HUC-8FLOODPLAIN COMPARISON WORKMAP

PANEL 0669Panel Contains:COMMUNITY CIDCLAY COUNTY 170898LOUISVILLE 171387

Source of Effe ctive Da ta for th e countie s of: Cole s, Cum b e rla nd, Ga lla tin, Ma rion, Moultrie , Wh ite -FEMA Na tiona l Flood Haza rd Laye r (NFHL)Source of Effe ctive Da ta for th e countie s of: Cla y, Edwa rds, Effing h a m , Faye tte , Ja spe r, Rich la nd, Sh e lby, Wayne -FEMA Ma p Se rvice Ce nte r (MSC), sca nne d a nd g e ore fe re nce d pa pe r m a psVe rtica l da tum re fe re nce for a ll e le va tions from e ffe ctive NFHL a nd ne w study: -North Am e rica n Ve rtica l Da tum of 1988 (NAVD88)Ve rtica l da tum re fe re nce for a ll e le va tions from e ffe ctive g e ore fe re nce d pa pe r m a ps: -Na tiona l Ge ode tic Ve rtica l Da tum of 1929 (NGVD29)O rth oim a g e ry provide d b y Illinois De pa rtm e nt of Tra nsporta tion (IDO T), 2011Com m unity b ounda rie s a cquire d from th e US Ce nsus Bure au, 2015Topog ra ph ic da ta in th e form of Dig ita l Te rra in Mode ls (DTMs) from 2011 we re a cquire d from th e Illinois Sta te Ge olog ica l Surve y (ISGS) Ge ospa tia l Da ta Cle a ring h ouse for th e following :Cla y, Cole s, Cum b e rla nd, Edwa rds, Effing h a m , Faye tte , Ga lla tin, Ja spe r, Rich la nd, Sh e lb y, Wayne , a nd Wh ite Countie s.Topog ra ph ic da ta use d for th e Ma in Ste m Little Wa b a sh Rive r wa s th e Unite d Sta te s Ge olog ica l Surve y (USGS) 10-m e te r re solution Dig ita l Ele va iton Mode l (DEM).Th e ne w study da ta de line a te d on th is workm a p is th e re sult of la rg e sca le a utom a te d e ng ine e ring pe rform e d b y th e Illinois Sta te Wa te r Surve y on b e h a lf of th e Fe de ra l Em e rg e ncy Ma na g e m e nt Ag e ncy a s pa rt of EMW-2015-CA-00063-S01. Hydrolog y wa s de rive d from th e m ost re ce nt re g iona l re g re ssion e qua tions for Illinois (Soong , D.T., Ish ii, A.L., Sh a rpe , J.B., a nd Ave ry, C.F., 2004, Estim a ting flood-pe a k disch a rg e m a g nitude s a nd fre que ncie s for rura l stre a m s in Illinois: U.S. Ge olog ica l Surve y Scie ntific Inve stig a tions Re port 2004-5103, 147 p.) th roug h th e U.S. Ge olog ica l Surve y’s Stre a m sta ts Utility. Hydraulic m ode ling wa s pe rform e d in th e U.S. Arm y Corps of Eng ine e rs HEC-RAS Ve rsion 4.1 with cross se ction da ta de rive d from th e DEM/DTM da ta se ts liste d a b ove , a nd la nd use inform a tion de rive d from th e Na tiona l La nd Cove r Da ta b a se (NLCD) 2011 da ta se t for Ma nning ’s roug h ne ss va lue s. Th e re sults of th is la rg e sca le autom a te d e ng ine e ring h a ve not b e e n re vie we d or a pprove d by th e Fe de ra l Em e rg e ncy Ma na g e m e nt Ag e ncy nor th e Illinois De pa rtm e nt of Na tura l Re source s-O ffice of Wa te r Re source s a nd sh ould not b e use d for re g ula tory purpose s. Ple a se re fe r to th e ye t to b e pub lish e d fina l h ydrolog ic a nd h ydraulic re port to accom pa ny fina l m a pping products for a ny lim ita tions on th e use of th e pre se nte d da ta.

1 inch = 500 feet 1:6,000

WORKMAP

OTHERAREAS

OTHER AREAS OFFLOOD HAZARD

SPECIAL FLOODHAZARD AREAS

* PANEL NOT PRINTED, NO EFFECTIVE OR NEW STUDY FLOOD AREAS

OTHERFEATURES

EFFECTIVE DATA IS SYMBOLIZED USING THE LEGEND BELOW:

NEW STUDY DATA IS SYMBOLIZED USING THE LEGEND BELOW:

OTHER FEATURES NOT NECESSARILY ASSOCIATED WITH A STUDY:

GENERALSTRUCTURES

OTHERFEATURES

OTHERFEATURES

STUDYRESULT AREAS

DRAFT MAP EFF. DATEMAY 29, 1981NO MAP

Coordinated Hazard Assessmentand Mapping Program

Illinois State Water SurveyPrairie Research Institute

University of Illinois at Urbana-Champaign

AUTOMATED ENGINEERING / FIRST ORDER APPROXIMATION

DamLevee or EmbankmentJurisdiction BoundaryWatershed BoundaryPanel Boundary

Profile Baseline

Cross Sections with 1% Annual ChanceWater Surface Elevation

717.5

1% Annual Chance Flood Hazard Area

Limit of StudyProfile Baseline/Hydrographic FeatureBase Flood Elevation Line (BFE)512

Cross Sections with 1% Annual ChanceWater Surface Elevation (BFE)

718.7,A 717.5

Areas Determined to be Outside the0.2% Annual Chance Floodplain Zone X

0.2% Annual Chance Flood Hazard Zone X

Without Base Flood Elevation (BFE)Zone A! ! ! ! ! ! ! ! ! ! ! !

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CulvertBridge, Footbridge?

?

Regulatory FloodwayWith BFE or Depth Zone AE