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 367

Good

Over: LEFT FRK APPLE

2 M SE NORTONVILLE, Morgan, IL

Built 2003 Load: 32.4 t ADT: 25

TR 46

Good

Over: WILLOW BRANCH

4.5 MI W JACKSONVILL, Morgan, IL

Built 2005 Load: 32.4 t ADT: 25

TR 128

Good

Over: BIG SANDY CRK

2 MI SW JACKSONVILLE, Morgan, IL

Built 2005 Load: 32.4 t ADT: 700

TR 254

Good

Over: CREEK

3 MI E JACKSONVILLE, Morgan, IL

Built 2005 Load: 32.4 t ADT: 25

TR-324

Good

Over: INDIAN CR

1.5 S YATESVILLE, Morgan, IL

Built 2006 Load: 32.4 t ADT: 50

TR 232

Good

Over: TERRE CREEK

4 SE JCKSNVILLE, Morgan, IL

Built 2006 Load: 32.4 t ADT: 125

TR 134A

Good

Over: MAUVAISE TERRE CRK

.5 M N JACKSONVILLE, Morgan, IL

Built 2009 Load: 32.4 t ADT: 850

TR 198

Good

Over: MAUVAISE TERRE CREEK

2 M SE JACKSONVILLE, Morgan, IL

Built 2009 Load: 32.4 t ADT: 550

TR 330

Good

Over: LITTLE INDIAN CR

1.5 MI W PRENTISE, Morgan, IL

Built 2009 Load: 32.4 t ADT: 150

CH 28

Good

Over: HENRY CREEK

2 M W WOODSON, Morgan, IL

Built 2012 Load: 32.4 t ADT: 800

TR 82

Good

Over: INDIAN CREEK

1.2 mi N TR 83, Morgan, IL

Built 2015 Load: 32.4 t ADT: 25

TR 277

Good

Over: Woods Creek

0.59 mi E TR 366, Morgan, IL

Built 2016 Load: 32.4 t ADT: 125

TR-300

Good

Over: Mauvaise Terre Creek

0.10 Mi S TR 215A, Morgan, IL

Built 2018 Load: 32.4 t ADT: 10

CH 26

Good

Over: CREEK

5 MI N OF WAVERLY, Morgan, IL

Built 1981 Load: 32.4 t ADT: 150

TR 373

Good

Over: TRIBUTARY OF COAL CR

4 MI SW MURRAYVILLE, Morgan, IL

Built 1981 Load: 32.4 t ADT: 25

TR 38

Good

Over: CREEK

3 MI SW ARENZVILLE, Morgan, IL

Built 1980 Load: 32.4 t ADT: 50

TR 373

Good

Over: COAL CR TRIB

4.0 SW MURRYVILLE, Morgan, IL

Built 1984 Load: 32.4 t ADT: 25

TR 347

Good

Over: BRANCH OF APPLE CK

1.7 MI. S. OF WAVERL, Morgan, IL

Built 1986 Load: 32.4 t ADT: 50

TR 158A

Good

Over: HENRY CREEK

0.5 MI SW WOODSON, Morgan, IL

Built 1994 Load: 32.4 t ADT: 100

TR 278

Good

Over: MAUVAISE TERRE CR

0.3MI N PISGAH, Morgan, IL

Built 1996 Load: 32.4 t ADT: 50

TR 178

Good

Over: TRIB TO LICK CR

3 M SE MURRAYVILLE, Morgan, IL

Built 2011 Load: 32.4 t ADT: 50

SOUTH CHURCH STREE

Good

Over: TOWN BROOK

ON S CHURCH AT BROOK, Morgan, IL

Built 1987 Load: 32.4 t ADT: 2,550

WOODS LANE

Good

Over: TRIB MAUVAISETERRE

WOODS LANE @ CREEK, Morgan, IL

Built 1992 Load: 32.4 t ADT: 500

WEST CHAMBERS ST

Good

Over: TOWN BROOK

ON W CHAMBERS@BROOK, Morgan, IL

Built 2005 Load: 32.4 t ADT: 850

FAP 320(IL 121)

Good

Over: STREAM

E EDGE OF SULLIVAN, Moultrie, IL

Built 1995 Load: 32.4 t ADT: 5,750

IL 128 (FAP 770)

Good

Over: CREEK

5.5 MI S DALTON CITY, Moultrie, IL

Built 2007 Load: 32.4 t ADT: 1,950

IL 128 (FAP 770)

Good

Over: WILBORN CREEK

6.5 MI S DALTON CITY, Moultrie, IL

Built 2007 Load: 32.4 t ADT: 2,300

IL 128 (FAP 770)

Good

Over: CREEK

4.3 MI N FINDLAY RD, Moultrie, IL

Built 2007 Load: 32.4 t ADT: 2,300

FAS 641(CH 3)

Good

Over: COON CREEK

.4 MI S ALLENVILLE, Moultrie, IL

Built 1985 Load: 32.4 t ADT: 200

FAS 554

Good

Over: DRAINAGE DITCH

IN DALTON CITY, Moultrie, IL

Built 1995 Load: 32.4 t ADT: 325

CH 9

Good

Over: STRINGTOWN BRANCH

2.3 MI S LAKE CITY, Moultrie, IL

Built 2012 Load: 32.4 t ADT: 50

FAS 554 (CH 9)

Good

Over: Marrow Bone Creek

3.4 Mi. W Lake City, Moultrie, IL

Built 2016 Load: 32.4 t ADT: 125

TR 38

Good

Over: STRINGTOWN BRANCH

1.0 MI W ULLRICH, Moultrie, IL

Built 1981 Load: 32.4 t ADT: 50

TR 13

Good

Over: TRIB STRINGTOWN BR

1 MI SW LAKE CITY, Moultrie, IL

Built 2001 Load: 32.4 t ADT: 50

TR 19

Good

Over: STRINGTOWN BRANCH

1.5 MI SW LAKE CITY, Moultrie, IL

Built 1999 Load: 32.4 t ADT: 25

TR 20

Good

Over: STRINGTOWN BRANCH

3 MI NE DALTON CITY, Moultrie, IL

Built 2001 Load: 32.4 t ADT: 150

TR 164

Good

Over: KASKASKIA RIVER

2 MI E ALLENVILLE, Moultrie, IL

Built 1993 Load: 32.4 t ADT: 100

TR 140

Good

Over: TWO MILE BRANCH

1.3 MI NE SULLIVAN, Moultrie, IL

Built 1992 Load: 32.4 t ADT: 300

TR 146

Good

Over: STREAM

2.5 MI NE SULLIVAN, Moultrie, IL

Built 1994 Load: 32.4 t ADT: 50

TR 101

Good

Over: STREAM

2.5 MI NE SULLIVAN, Moultrie, IL

Built 1994 Load: 32.4 t ADT: 35

TR 97

Good

Over: JONATHAN CREEK

4 MI NE OF SULLIVAN, Moultrie, IL

Built 1999 Load: 32.4 t ADT: 25

TR 101

Good

Over: JONATHAN CREEK

3 MI. NE SULLIVAN, Moultrie, IL

Built 2007 Load: 32.4 t ADT: 35

TR 99 A

Good

Over: TWO MILE BRANCH

1.1 MI N SULLIVAN, Moultrie, IL

Built 2011 Load: 32.4 t ADT: 100

TR 5

Good

Over: W OKAW RIVER

3.0 MI N LOVINGTON, Moultrie, IL

Built 1981 Load: 32.4 t ADT: 20

TR 49

Good

Over: JONATHAN BRANCH

1.8 MI S LOVINGTON, Moultrie, IL

Built 1993 Load: 32.4 t ADT: 100

TR 110

Good

Over: W OKAW RIVER TRIB

2 MI SE LOVINGTON, Moultrie, IL

Built 1994 Load: 32.4 t ADT: 125

TR 37

Good

Over: W OKAW RIVER TRIB

3.2 MI SW LOVINGTON, Moultrie, IL

Built 1993 Load: 32.4 t ADT: 350

TR 33

Good

Over: W OKAW RIVER

1.9 MI SW LOVINGTON, Moultrie, IL

Built 2001 Load: 32.4 t ADT: 100

TR 61

Good

Over: W OKAW RIVER TRIB

4 MI SW OF LOVINGTON, Moultrie, IL

Built 1996 Load: 32.4 t ADT: 25

TR 52

Good

Over: W OKAW RIVER TRIB

4 MI SW OF LOVINGTON, Moultrie, IL

Built 1996 Load: 32.4 t ADT: 100

Showing 19,851-19,900 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.