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

MEADOW BROOK RD

Good

Over: SPRING CREEK

SPRINGFIELD, Sangamon, IL

Built 2010 Load: 32.4 t ADT: 1,300

PING ROAD

Good

Over: BRUSH CR OVERFLOW

.5 N DIVERNON, Sangamon, IL

Built 2005 Load: 32.4 t ADT: 100

BRUNS LANE

Good

Over: SPRING CREEK

BRUNS LANE, Sangamon, IL

Built 2008 Load: 32.4 t ADT: 3,300

CHATHAM ROAD

Good

Over: JACKSONVILLE BR

.25 mi N of Wabash, Sangamon, IL

Built 2014 Load: 32.4 t ADT: 15,200

TR-1028D (N Ring R

Good

Over: Jacksonville Branch

Washington Pk Splwy, Sangamon, IL

Built 2017 Load: 32.4 t ADT: 450

TR-1028A (S Ring R

Good

Over: Jacksonville Branch

Wash Pk Lagoon S end, Sangamon, IL

Built 2017 Load: 32.4 t ADT: 450

KINZIE ST{MS 1100}

Good

Over: CLAY-CREEK

RIVERTON,ILLINOIS, Sangamon, IL

Built 1997 Load: 32.4 t ADT: 650

FAU 7977

Good

Over: SPRING CREEK

W. WASHINGTON ST., Sangamon, IL

Built 1990 Load: 32.4 t ADT: 3,600

PARK RD

Good

Over: CREEK

IN PARK, Sangamon, IL

Built 2002 Load: 32.4 t ADT: 125

PARK ST

Good

Over: CREEK

0.24 PARK ST, Sangamon, IL

Built 2002 Load: 32.4 t ADT: 1,100

PTARMIGAN DR

Good

Over: CREEK

CHATHAM, Sangamon, IL

Built 2002 Load: 32.4 t ADT: 1,300

AMOS AV

Good

Over: DRAINAGE DITCH

0.5 M N 125/97, Sangamon, IL

Built 2007 Load: 32.4 t ADT: 1,050

E LAKE DR / FAU 79

Good

Over: SUGAR CREEK

.5M E STEV DR@L SPFD, Sangamon, IL

Built 1992 Load: 32.4 t ADT: 10,000

STANFORD AVE

Good

Over: NS RR & UP RR

STANFORD AVE, Sangamon, IL

Built 1999 Load: 32.4 t ADT: 22,300

IL 101 (FAP 713)

Good

Over: LEWIS CREEK

2.1M W IL99/BROOKLYN, Schuyler, IL

Built 2004 Load: 32.4 t ADT: 400

FAS 583

Good

Over: LA MOINE RIVER

4 M E CAMDEN, Schuyler, IL

Built 2008 Load: 32.4 t ADT: 1,000

FAS 454

Good

Over: DUTCHMANS CREEK

NCL BROWNING, Schuyler, IL

Built 2010 Load: 32.4 t ADT: 400

CH 2

Good

Over: SUGAR CREEK

.76 mi S TR 234, Schuyler, IL

Built 2013 Load: 32.4 t ADT: 250

FAS 582

Good

Over: DRAINAGE DITCH

3MI SO SUGAR GROVE, Schuyler, IL

Built 1991 Load: 32.4 t ADT: 175

TR 275

Good

Over: EAST FORK CRANE CRK

3.5 MI SE RUSHVILLE, Schuyler, IL

Built 2002 Load: 32.4 t ADT: 50

TR 66

Good

Over: FLOWER CREEK

.1 M E BIRMINGHAM, Schuyler, IL

Built 2009 Load: 32.4 t ADT: 25

TR 362

Good

Over: DUTCHMANS CRK

2MI NE BROWNING, Schuyler, IL

Built 1993 Load: 32.4 t ADT: 25

TR 350

Good

Over: TRIB HARRIS BR

3 M N BROWNING, Schuyler, IL

Built 2008 Load: 32.4 t ADT: 25

FAS 2584

Good

Over: SOUTH BR SUGAR CR.

.25 MI SOUTH OF RAY, Schuyler, IL

Built 1995 Load: 32.4 t ADT: 50

CH 14

Good

Over: WALNUT CREEK

2.5 M NW WINCHESTER, Scott, IL

Built 2012 Load: 32.4 t ADT: 100

CH 4

Good

Over: LITTLE SANDY CREEK

1.5 MI N MANCHESTER, Scott, IL

Built 1999 Load: 32.4 t ADT: 100

TR 168

Good

Over: SANDY CREEK

4.5 MI N MANCHESTER, Scott, IL

Built 1991 Load: 32.4 t ADT: 25

TR 152

Good

Over: LITTLE SANDY CK

2 MI NW MANCHESTER, Scott, IL

Built 1983 Load: 32.4 t ADT: 50

TR 126A

Good

Over: LITTLE SANDY CREEK

1.5MI NE ALSEY, Scott, IL

Built 1993 Load: 32.4 t ADT: 75

TR 136

Good

Over: LITTLE SANDY CR

2 M NE ALSEY, Scott, IL

Built 2010 Load: 32.4 t ADT: 25

TR 125

Good

Over: LITTLE SANDY CR

2 M ENE ALSEY, Scott, IL

Built 2010 Load: 32.4 t ADT: 25

TR 86

Good

Over: Little Sandy Branch

1.44 mi S FAS 608, Scott, IL

Built 2016 Load: 32.4 t ADT: 25

TR 86

Good

Over: LITTLE SANDY CK BH

1.5 MI SE GLASGOW, Scott, IL

Built 1984 Load: 32.4 t ADT: 25

TR96

Good

Over: S PLUM CREEK

2 MI SE EXETER, Scott, IL

Built 1997 Load: 32.4 t ADT: 50

TR 108

Good

Over: S PLUM CREEK

3 MI SE EXETER, Scott, IL

Built 1997 Load: 32.4 t ADT: 25

TR 94

Good

Over: WALNUT CK

2 MI NNW WINCHESTER, Scott, IL

Built 1984 Load: 32.4 t ADT: 50

TR 128

Good

Over: BIG BRANCH

2 MI NE WINCHESTER, Scott, IL

Built 1996 Load: 32.4 t ADT: 50

TR 126

Good

Over: SANDY CREEK TRIB

3 MI ESE WINCHESTER, Scott, IL

Built 1987 Load: 32.4 t ADT: 50

TR 140

Good

Over: SANDY CREEK TRIB

3 M E OF WINCHESTER, Scott, IL

Built 1983 Load: 32.4 t ADT: 75

TR 42

Good

Over: PLUM CREEK

1 MI N BLOOMFIELD, Scott, IL

Built 1994 Load: 32.4 t ADT: 50

TR 62A

Good

Over: PLUM CREEK

2 MI NE BLOOMFIELD, Scott, IL

Built 1997 Load: 32.4 t ADT: 50

TR 55B

Good

Over: PLUM CREEK

.5MI N BLOOMFIELD, Scott, IL

Built 1990 Load: 32.4 t ADT: 25

TR 63

Good

Over: WALNUT CREEK

2.5MI NW WINCHESTER, Scott, IL

Built 1992 Load: 32.4 t ADT: 50

CH 14

Good

Over: NETTLES CREEK

2 MI W WINCHESTER, Scott, IL

Built 2003 Load: 32.4 t ADT: 150

TR 23

Good

Over: MAUVAISE TERRE CK

1.5 MI NE MERRITT, Scott, IL

Built 1982 Load: 32.4 t ADT: 50

TR 114

Good

Over: MAUVAISE TERRE CK

1.5 MI WEST MERRITT, Scott, IL

Built 1983 Load: 32.4 t ADT: 75

TR 46

Good

Over: COON RUN CREEK

0.96 mi S Morgan Co., Scott, IL

Built 2014 Load: 32.4 t ADT: 25

TR 10

Good

Over: MAUVAISE TERRE CREEK

1.5 MI S NAPLES, Scott, IL

Built 2002 Load: 32.4 t ADT: 50

TR-60

Good

Over: Mauvaise Terre Ck

1.30 mi S FAS 606, Scott, IL

Built 2018 Load: 32.4 t ADT: 50

TR 92

Good

Over: PLUM CREEK

1.0 MI S EXETER, Scott, IL

Built 1988 Load: 32.4 t ADT: 50

Showing 20,651-20,700 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.