State profile · Near median Poor share

Illinois bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Illinois, based on the FHWA National Bridge Inventory.

27,743
Public bridges
41.2%
Good condition
7.9%
Poor condition

Data updated May 2026

Total Bridges

27,743

Public highway bridges in Illinois

Good Condition

41.2%

11,426 bridges rated 7-9

-8.8pp vs 50% benchmark

Poor Condition

7.9%

2,186 bridges whose lowest applicable component is rated 0-4

0.9pp vs national avg 7.0%

Illinois vs national bridge condition

Illinois - Good condition share 41.2%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Illinois - Poor-condition share 26.3%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Illinois48.2%42.6%9.2%GoodFairPoor
Bridge inventory deck-condition mix - Illinois (FHWA NBI)

Counties (102)

Adams 325 Alexander 96 Bond 165 Boone 111 Brown 71 Bureau 382 Calhoun 81 Carroll 185 Cass 77 Champaign 743 Christian 323 Clark 232 Clay 171 Clinton 187 Coles 308 Cook 2185 Crawford 196 Cumberland 169 De Witt 197 DeKalb 264 Douglas 234 DuPage 380 Edgar 278 Edwards 79 Effingham 260 Fayette 356 Ford 300 Franklin 323 Fulton 210 Gallatin 82 Greene 166 Grundy 269 Hamilton 164 Hancock 291 Hardin 58 Henderson 144 Henry 331 Iroquois 565 Jackson 235 Jasper 180 Jefferson 270 Jersey 111 Jo Daviess 198 Johnson 120 Kane 354 Kankakee 352 Kendall 133 Knox 321 LaSalle 529 Lake 286 Lawrence 183 Lee 372 Livingston 578 Logan 296 Macon 368 Macoupin 248 Madison 543 Marion 301 Marshall 153 Mason 85 Massac 138 McDonough 210 McHenry 229 McLean 624 Menard 90 Mercer 162 Monroe 130 Montgomery 261 Morgan 241 Moultrie 171 Ogle 377 Peoria 365 Perry 139 Piatt 249 Pike 338 Pope 86 Pulaski 106 Putnam 50 Randolph 155 Richland 147 Rock Island 256 Saline 176 Sangamon 480 Schuyler 121 Scott 96 Shelby 330 St. Clair 502 Stark 89 Stephenson 332 Tazewell 361 Union 192 Vermilion 515 Wabash 88 Warren 202 Washington 232 Wayne 264 White 210 Whiteside 280 Will 674 Williamson 204 Winnebago 475 Woodford 222

Illinois vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Illinois on the same metric.

RI

Rhode Island

7.69% top marginal rate
Structure
Progressive
Burden @ $100K
$78

NE

Nebraska

7.73% top marginal rate
Structure
Progressive
Burden @ $100K
$15,571
Selected

IL

Illinois

7.88% top marginal rate
Structure
Progressive
Burden @ $100K
$27,743

MA

Massachusetts

7.96% top marginal rate
Structure
Progressive
Burden @ $100K
$5,314

MO

Missouri

8.53% top marginal rate
Structure
Progressive
Burden @ $100K
$24,654

Bridges Needing Most Attention in Illinois

Six lowest-condition bridges in Illinois, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

FAS 1599

Poor

Over: DRAINAGE CANAL

2.2 MI E MEYER, Adams, IL

Built 1980 Load: 0.6 t ADT: 200

CH 15

Poor

Over: E FK MAZONRIVER

0.05 MI W CH 16, Grundy, IL

Built 1977 Load: 1.0 t ADT: 1,400

MOOSE RD - TR 240

Poor

Over: WILSON CREEK

NE-35-T3NR2E, Fulton, IL

Built 1935 Load: 1.3 t ADT: 10

TR 10-B

Poor

Over: KING CREEK

W EDGE OF MINERAL, Bureau, IL

Built 1899 Load: 1.6 t ADT: 10

TR-6

Poor

Over: DRAINAGE DITCH

3.5 MI NE DIETERICH, Effingham, IL

Built 1909 Load: 1.6 t ADT: 25

TR208K(TWIN BRIDGE

Poor

Over: BIG CREEK

NE EDGE MT ZION, Macon, IL

Built 1967 Load: 1.9 t ADT: 375

All Bridges in Illinois

TR-416

Good

Over: TRIB HARLOW CREEK

2 MI NE MT VERNON, Jefferson, IL

Built 1992 Load: 32.4 t ADT: 125

TR-416

Good

Over: HARLOW CREEK

1.5 MI NE MT VERNON, Jefferson, IL

Built 1992 Load: 32.4 t ADT: 125

TR-155A

Good

Over: PIERCE CREEK

6 MI NW MT VERNON, Jefferson, IL

Built 1992 Load: 32.4 t ADT: 50

FAS-830

Good

Over: AUXIER CREEK

2.7 MI N OPDYKE, Jefferson, IL

Built 1994 Load: 32.4 t ADT: 100

TR-381A

Good

Over: CREEK

0.5 MI E OPDYKE, Jefferson, IL

Built 1996 Load: 32.4 t ADT: 50

TR-531

Good

Over: TRIB GUN CREEK

1 MI E INA, Jefferson, IL

Built 1994 Load: 32.4 t ADT: 250

TR-224

Good

Over: TRIB HARPER CREEK

2 MI NW MT.VERNON, Jefferson, IL

Built 1996 Load: 32.4 t ADT: 375

TR-188

Good

Over: CREEK

2.5 MI NE WALTONVILL, Jefferson, IL

Built 1992 Load: 32.4 t ADT: 125

TR-430

Good

Over: TRIB SEVEN MILE CK

3 MI NW OPDYKE, Jefferson, IL

Built 1994 Load: 32.4 t ADT: 175

TR-542

Good

Over: TRIB AUXIER CREEK

2.5 MI S BLUFORD, Jefferson, IL

Built 2004 Load: 32.4 t ADT: 25

TR-461

Good

Over: TRIB LITTLE MUDDY RV

0.5 MI N SCHELLER, Jefferson, IL

Built 1994 Load: 32.4 t ADT: 100

TR 359

Good

Over: AUXIER CREEK

2.5 MI NW BELLE RIVE, Jefferson, IL

Built 1999 Load: 32.4 t ADT: 25

T.R 91

Good

Over: HORSE CREEK

2 MI NE HARMONY, Jefferson, IL

Built 2012 Load: 32.4 t ADT: 150

FAU-8729

Good

Over: STREAM

27TH ST MT VERNON, Jefferson, IL

Built 1988 Load: 32.4 t ADT: 2,350

FAU 8748

Good

Over: TRIB BIG MUDDY CREEK

N OF VETERANS DR, Jefferson, IL

Built 2012 Load: 32.4 t ADT: 5,300

LOOP RD

Good

Over: CASEY FORK & UP RR

1.5 MI N MT VERNON, Jefferson, IL

Built 2005 Load: 32.4 t ADT: 1,250

TR 553

Good

Over: CNIC RR

6.25 MI S BELLE RIVE, Jefferson, IL

Built 2007 Load: 32.4 t ADT: 25

E. STRAZA RD

Good

Over: C.N.I.C RAILROAD

4 MI S BELLE RIVE, Jefferson, IL

Built 2009 Load: 32.4 t ADT: 75

SHORT ST

Good

Over: CN/IC RR

BLUFORD, Jefferson, IL

Built 2008 Load: 32.4 t ADT: 700

E. Denker Rd.

Good

Over: CNIC RR

4 mi. N of Bluford, Jefferson, IL

Built 2012 Load: 32.4 t ADT: 25

FAS 745

Good

Over: MACOUPIN CR

7M NE OF JERSEYVILLE, Jersey, IL

Built 1979 Load: 32.4 t ADT: 75

TR 185

Good

Over: BRANCH OFPIASA CREEK

3M SW BRIGHTON, Jersey, IL

Built 1986 Load: 32.4 t ADT: 50

TR 199

Good

Over: MILL CREEK

1.1 MILE NE ELSAH, Jersey, IL

Built 1988 Load: 32.4 t ADT: 75

TR 27

Good

Over: SUGAR CREEK

3.3 MI. N. FIELDON, Jersey, IL

Built 1990 Load: 32.4 t ADT: 50

TR 128

Good

Over: Briggs Branch Creek

1.2 Mi E of Elsah, Jersey, IL

Built 1990 Load: 32.4 t ADT: 125

TR 56

Good

Over: TRIB PHILS CREEK

5.6 MI E. JERYSVILLE, Jersey, IL

Built 1991 Load: 32.4 t ADT: 150

TR 119

Good

Over: OTTER CREEK

1.8 MI NE OTTERVILLE, Jersey, IL

Built 1993 Load: 32.4 t ADT: 100

TR 90

Good

Over: BRANCH OF COON CREEK

1.5MI SE OF ROSEDALE, Jersey, IL

Built 1989 Load: 32.4 t ADT: 50

OAK REST ROAD

Good

Over: PIASA CREEK

1.3 MI. S. ILL 16, Jersey, IL

Built 1994 Load: 32.4 t ADT: 175

TR 9

Good

Over: TRIB ELM BRANCH

1/2 MIS W. KEMPER, Jersey, IL

Built 1997 Load: 32.4 t ADT: 50

TR 51

Good

Over: DEARCY BR.

0.8 M N. JERSEYVILLE, Jersey, IL

Built 1994 Load: 32.4 t ADT: 50

CH 26

Good

Over: TRIB OTTER CREEK

0.3 M W. ILL RT 109, Jersey, IL

Built 1995 Load: 32.4 t ADT: 650

GRANGE HALL RD/CH4

Good

Over: PIASA CREEK

3.9MI S ILL 16, Jersey, IL

Built 1996 Load: 32.4 t ADT: 550

TR 105

Good

Over: BRANCH PIASA CK

2 MI. SOUTH IL 16, Jersey, IL

Built 1996 Load: 32.4 t ADT: 375

TR 98

Good

Over: S. FORK OTTER CREEK

1.5 M W OTTERVILLE, Jersey, IL

Built 2000 Load: 32.4 t ADT: 100

TR 105

Good

Over: PIASA CREEK

3.2MI NW OF BRIGHTON, Jersey, IL

Built 1998 Load: 32.4 t ADT: 200

COUNTY LINE RD

Good

Over: CREEK

2MI SO. OF BRIGHTON, Jersey, IL

Built 1999 Load: 32.4 t ADT: 50

TR 5

Good

Over: ELM BRANCH

2 MILES W. KEMPER, Jersey, IL

Built 1999 Load: 32.4 t ADT: 50

TR 77

Good

Over: STREAM

.7 MI NE OF NUTWOOD, Jersey, IL

Built 2000 Load: 32.4 t ADT: 75

TR 69

Good

Over: PHILS CREEK

1.5MI N IL RT. 16, Jersey, IL

Built 2003 Load: 32.4 t ADT: 50

PUMP STATION ROAD

Good

Over: TRIB TO OTTER CREEK

3 M NW OF OTTERVILLE, Jersey, IL

Built 1999 Load: 32.4 t ADT: 175

CH21/OWL BRANCH RD

Good

Over: OWL BRANCH

.1 MI W FAS 745, Jersey, IL

Built 2003 Load: 32.4 t ADT: 200

TR 147

Good

Over: STREAM

1.8 MI W DELHI, Jersey, IL

Built 2004 Load: 32.4 t ADT: 50

TR 142

Good

Over: TRIB LITTLE PIASA CK

0.1MI W OF IL 109, Jersey, IL

Built 2007 Load: 32.4 t ADT: 25

TR 43

Good

Over: DRAINAGE DITCH

2 M NW NUTWOOD, Jersey, IL

Built 2006 Load: 32.4 t ADT: 10

TR 137

Good

Over: PIASA CREEK

0.8MI W BRIGHTON, Jersey, IL

Built 2007 Load: 32.4 t ADT: 175

TR 140

Good

Over: BR LITTLE PIASA CR

0.2MI E IL 109, Jersey, IL

Built 2007 Load: 32.4 t ADT: 175

TR 48

Good

Over: OWL BRANCH CREEK

3MI NE JERSEYVILLE, Jersey, IL

Built 2007 Load: 32.4 t ADT: 25

TR 108

Good

Over: TRIB SOUTH OTTER CR

2MI NW OTTERVILLE, Jersey, IL

Built 2007 Load: 32.4 t ADT: 75

TR 50

Good

Over: TRIB PHILS CK

3.5 MI N/W FIDELITY, Jersey, IL

Built 2009 Load: 32.4 t ADT: 75

Showing 18,101-18,150 of 27,743 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.