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

BAUER ROAD

Good

Over: TRIB TO CRAWFORD CRK

0.32 MI N OF FAS 889, Gallatin, IL

Built 2005 Load: 32.4 t ADT: 10

THACKERS HOLLOW RO

Good

Over: POUNDS HOLLOW TRIB

SE OF LEAMINGTON, Gallatin, IL

Built 2007 Load: 32.4 t ADT: 25

ST. JOSEPH RD

Good

Over: STREAM

0.5 MI EAST RTE 1, Gallatin, IL

Built 2009 Load: 32.4 t ADT: 75

COTTONWOOD ROAD

Good

Over: WHITE OAK CREEK

SALINE-GALLATIN CL, Gallatin, IL

Built 2011 Load: 32.4 t ADT: 50

MILES CARNAHAN RD

Good

Over: COCKEREL BRANCH

0.8 MI W FAS 902, Gallatin, IL

Built 2010 Load: 32.4 t ADT: 50

HEAD LANE

Good

Over: UNNAMED TRIB TO OHIO

0.4 M S IL RT 13, Gallatin, IL

Built 2012 Load: 32.4 t ADT: 50

HOGAN CEMETERY RD

Good

Over: UNNAMED STREAM

1.2 MI SOUTH FAS 892, Gallatin, IL

Built 2011 Load: 32.4 t ADT: 75

RINGGOLD RD/CH15

Good

Over: UNNAMED TRIBTO OHIO

3.5MI S SHAWNEETOWN, Gallatin, IL

Built 2011 Load: 32.4 t ADT: 325

CAMPGROUND ROAD

Good

Over: CRAWFORD CREEK

.5M N RWAY/NWHAVENRD, Gallatin, IL

Built 2013 Load: 32.4 t ADT: 10

TR-162 (Rigsby Rd)

Good

Over: Trib Saline River

2MI S BOWLESVILLE, Gallatin, IL

Built 2016 Load: 32.4 t ADT: 75

FAS 902-FH 36

Good

Over: DRAINAGE DITCH

2 MI.SO.OF EQUALITY, Gallatin, IL

Built 1979 Load: 32.4 t ADT: 400

US 67

Good

Over: DRAINAGE

AT SCOTT COUNTY LINE, Greene, IL

Built 2004 Load: 32.4 t ADT: 3,450

US 67

Good

Over: DRAINAGE

2 MI N OF ROODHOUSE, Greene, IL

Built 2004 Load: 32.4 t ADT: 3,450

US 67

Good

Over: S TRIB MACOUPIN CRK

.9 MI S MACOUPIN CR, Greene, IL

Built 1965 Load: 32.4 t ADT: 4,750

FAS 731 CH 2

Good

Over: APPLE CREEK

.5 MI E OF IL 267, Greene, IL

Built 2007 Load: 32.4 t ADT: 450

TR-27

Good

Over: TRIMLEY CREEK

2 MI NW WILMINGTON, Greene, IL

Built 1980 Load: 32.4 t ADT: 25

FAS 740-CH 6

Good

Over: MACOUPIN CREEK

5.5MI S 108 FAS740, Greene, IL

Built 1981 Load: 32.4 t ADT: 350

TR-167

Good

Over: CROOKED CREEK

1.5 MI SW WALKERVILL, Greene, IL

Built 1984 Load: 32.4 t ADT: 50

TR 101

Good

Over: SEMINARY CREEK

1.2 MI W WHITEHALL, Greene, IL

Built 1983 Load: 32.4 t ADT: 300

TR-173

Good

Over: WHITAKER CREEK

5 MI NE CARROLLTON, Greene, IL

Built 1984 Load: 32.4 t ADT: 50

FAS 744 CH 4

Good

Over: WHITAKER CREEK

2 MI E 67 FAS 744, Greene, IL

Built 1985 Load: 32.4 t ADT: 350

TR 217

Good

Over: STREAM

2 MI. S. GREENFIELD, Greene, IL

Built 1988 Load: 32.4 t ADT: 150

TR193

Good

Over: S. FORK WHITAKER CK

1625N-1280E, Greene, IL

Built 1989 Load: 32.4 t ADT: 50

TR 78

Good

Over: MACOUPIN CREEK

8 MI SE OF ELDRED, Greene, IL

Built 1988 Load: 32.4 t ADT: 25

TR 217

Good

Over: STREAM

2.8 MI SW GREENFIELD, Greene, IL

Built 1992 Load: 32.4 t ADT: 75

TR 266

Good

Over: MARKS CREEK

3.6 MI N ATHENSVILLE, Greene, IL

Built 1990 Load: 32.4 t ADT: 50

TR 221

Good

Over: DRAINAGE DITCH

4 MI SW HAYPRESS, Greene, IL

Built 1990 Load: 32.4 t ADT: 25

TR 74

Good

Over: HURRICANE CREEK

4.3 MI W. CARROLLTON, Greene, IL

Built 1992 Load: 32.4 t ADT: 50

TR 160

Good

Over: SAND CREEK

SW SEC 30 T1ON R11W, Greene, IL

Built 1993 Load: 32.4 t ADT: 125

TR 278

Good

Over: TRIB. TO TAYLOR CR.

3 MI W. GREENFIELD, Greene, IL

Built 1995 Load: 32.4 t ADT: 50

TR 226

Good

Over: BEAR CREEK

1 1/4 MI N. WRIGHTS, Greene, IL

Built 1997 Load: 32.4 t ADT: 50

CH-30

Good

Over: DRY BRANCH

1.6 MI. E. OF WOODY, Greene, IL

Built 1994 Load: 32.4 t ADT: 375

CH-9

Good

Over: Apple Creek

3 MI W. OF RT. 267, Greene, IL

Built 1999 Load: 32.4 t ADT: 150

TR 203

Good

Over: UNNAMED CREEK

1/2MI EAST ELDRED RD, Greene, IL

Built 1999 Load: 32.4 t ADT: 25

TR 70

Good

Over: TRIB APPLE CREEK

1.5MI N. IL 108, Greene, IL

Built 1999 Load: 32.4 t ADT: 75

TR 110

Good

Over: UNNAMED CREEK

5.2 MI SW CARROLLTON, Greene, IL

Built 1996 Load: 32.4 t ADT: 50

TR 282

Good

Over: TAYLOR CREEK

2.7MI SW ROCKBRIDGE, Greene, IL

Built 2002 Load: 32.4 t ADT: 25

TR-7

Good

Over: Trib Little Apple

2.5MI EAST OF RT 267, Greene, IL

Built 1999 Load: 32.4 t ADT: 25

FAS 732 CH 22

Good

Over: WOLF RUN CREEK

2150N;1350E, Greene, IL

Built 2000 Load: 32.4 t ADT: 250

TR 269

Good

Over: TAYLOR CREEK

5.5MI SW ROCKBRIDGE, Greene, IL

Built 2002 Load: 32.4 t ADT: 75

TR 196

Good

Over: BEAR CREEK

5.2 MI SE CARROLTON, Greene, IL

Built 2002 Load: 32.4 t ADT: 50

TR 267

Good

Over: LINK'S BRANCH

950N;1330E, Greene, IL

Built 2002 Load: 32.4 t ADT: 50

TR 180

Good

Over: WOLF RUN CREEK

2300N;1475E, Greene, IL

Built 2003 Load: 32.4 t ADT: 50

TR 243

Good

Over: BR OF BEARCREEK

1175N:1725E, Greene, IL

Built 2004 Load: 32.4 t ADT: 25

TR 256A

Good

Over: SOUTH LICK CREEK

2250N;2000E, Greene, IL

Built 2003 Load: 32.4 t ADT: 75

TR 183

Good

Over: RUBICON CREEK

1 MI N GREENFIELD, Greene, IL

Built 2005 Load: 32.4 t ADT: 150

FAS 731

Good

Over: BIRCH CREEK

2550N;1650E, Greene, IL

Built 2006 Load: 32.4 t ADT: 550

TR 201

Good

Over: TAYLOR CREEK

2.5 E GREENFIELD, Greene, IL

Built 2007 Load: 32.4 t ADT: 225

TR 301

Good

Over: BOYER CREEK

5 MI W. OF OLD KANE, Greene, IL

Built 2007 Load: 32.4 t ADT: 50

TR 257

Good

Over: STREAM

2.4MI SW ELDRED, Greene, IL

Built 2007 Load: 32.4 t ADT: 25

Showing 17,251-17,300 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.