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 280

Good

Over: FLAT BRANCH CREEK

3 MI SW SAILOR SPRGS, Clay, IL

Built 2014 Load: 32.4 t ADT: 50

CH 11

Good

Over: CONNERS BRANCH

3 MI W XENIA, Clay, IL

Built 2013 Load: 32.4 t ADT: 50

TR 385

Good

Over: Elm River

4 Miles SE Flora, Clay, IL

Built 2015 Load: 32.4 t ADT: 25

TR 368

Good

Over: Big Muddy Creek

2.5 Mi. NE Sailor Sp, Clay, IL

Built 2016 Load: 32.4 t ADT: 75

TR-40

Good

Over: Conners Branch

2.5 Mi. NW Xenia, Clay, IL

Built 2017 Load: 32.4 t ADT: 100

TR-209

Good

Over: Little Muddy Creek

0.5 Mi. W Sailor Spr, Clay, IL

Built 2017 Load: 32.4 t ADT: 50

TR 225

Good

Over: FLAT BRANCH CREEK

2.5 Mi W Sailor Spri, Clay, IL

Built 2012 Load: 32.4 t ADT: 50

TR 221

Good

Over: Trib to Buck Creek

3 Mi. SW Louisville, Clay, IL

Built 2014 Load: 32.4 t ADT: 175

TR 355

Good

Over: Bear Creek

3.5 SW Flora, Clay, IL

Built 2015 Load: 32.4 t ADT: 50

TR 149

Good

Over: ICG RR

3 MI SW IOLA, Clay, IL

Built 2003 Load: 32.4 t ADT: 25

TR 219

Good

Over: ICG RR

2 MI W OSKALOOSA, Clay, IL

Built 2005 Load: 32.4 t ADT: 25

TR 293

Good

Over: ICG RR

4 MI SW OSKALOOSA, Clay, IL

Built 2007 Load: 32.4 t ADT: 50

IL 161

Good

Over: KASKASKIA RIVER OVFL

5.4M EAST BARTELSO, Clinton, IL

Built 1994 Load: 32.4 t ADT: 2,250

ILL 161

Good

Over: KASKASKIA RIVER OVFL

5.6M EAST BARTELSO, Clinton, IL

Built 1994 Load: 32.4 t ADT: 2,250

IL 161

Good

Over: TRIB TO SHOAL CREEK

JUST W OF GERMANTOWN, Clinton, IL

Built 2005 Load: 32.4 t ADT: 4,800

IL 161

Good

Over: TRIB TO SHOAL CREEK

WCL OF GERMANTOWN, Clinton, IL

Built 2005 Load: 32.4 t ADT: 4,800

NEW US 50

Good

Over: DRAINAGE

1 MI E BECKEMEYER RD, Clinton, IL

Built 1986 Load: 32.4 t ADT: 5,150

TR 22/SPORTSMENS R

Good

Over: SUGAR CREEK

2.75 M N TRENTON, Clinton, IL

Built 1977 Load: 32.4 t ADT: 225

COLLEGE RD/TR 175

Good

Over: PRAIRIE CREEK

2 M NW CENTRALIA, Clinton, IL

Built 1977 Load: 32.4 t ADT: 500

WESCLIN RD/TR 167

Good

Over: SUGAR CREEK

2 M NW ALBERS, Clinton, IL

Built 1978 Load: 32.4 t ADT: 700

TR177/COURT ROAD

Good

Over: TRIBUTARY SUGAR CREK

1 MI. N.E. NEW BADEN, Clinton, IL

Built 1979 Load: 32.4 t ADT: 225

TR 223A/KASTEN ROA

Good

Over: DRAINAGE DITCH

1.5 SO OF BARTELSO, Clinton, IL

Built 1980 Load: 32.4 t ADT: 25

TR 33/GOODINGSFORD

Good

Over: SHOAL CREEK

ST ROSE TPSEC 23, Clinton, IL

Built 1981 Load: 32.4 t ADT: 400

TR 9/LOUSE CREEK R

Good

Over: LOUSE RUN CREEK

.01 M S FAYETTE CO, Clinton, IL

Built 1982 Load: 32.4 t ADT: 75

TR 211/AIRPORT ROA

Good

Over: SUGAR CREEK

SOF I64-INTERCHANGE, Clinton, IL

Built 1983 Load: 32.4 t ADT: 450

TR 167/WESCLIN ROA

Good

Over: LAKE BRANCH

SUGAR CR/LOOKINGGLAS, Clinton, IL

Built 1986 Load: 32.4 t ADT: 700

TR 3/KEYESPORT ROA

Good

Over: SHOAL CR

EAST OF JAMESTOWN, Clinton, IL

Built 1986 Load: 32.4 t ADT: 300

TR 96/TWIN LEVEE R

Good

Over: SANTA FE DITCH

2.5MI S BARTELSO, Clinton, IL

Built 1988 Load: 32.4 t ADT: 25

GIBBES RD/TR 59

Good

Over: GIBBES CREEK

2MI SE BOULDER, Clinton, IL

Built 1989 Load: 32.4 t ADT: 10

TR 124/VAREL ROAD

Good

Over: BEAVER CREEK BRANCH

VAREL RD, Clinton, IL

Built 1990 Load: 32.4 t ADT: 50

HIGH LINE RD/TR 15

Good

Over: SHOAL CREEK

1.25 S OF BREESE, Clinton, IL

Built 1990 Load: 32.4 t ADT: 325

TR 255

Good

Over: SEWER CREEK

1 MI WEST OF WAMAC, Clinton, IL

Built 1991 Load: 32.4 t ADT: 225

TR 31 (IBERG RD)

Good

Over: SPANKER BRANCH

640E IBERG RD, Clinton, IL

Built 1994 Load: 32.4 t ADT: 200

TR 163/JUNCTION RD

Good

Over: PRAIRIE CREEK

2880E JUNCTION RD, Clinton, IL

Built 1995 Load: 32.4 t ADT: 25

TR 101 OLD STATE R

Good

Over: BRANCH OF SUGAR CRK

455E OLD STATE RD, Clinton, IL

Built 1996 Load: 32.4 t ADT: 350

TR 179A OLD CARYLE

Good

Over: BECKER BRANCH

2 MILES N. BARTELSO, Clinton, IL

Built 1999 Load: 32.4 t ADT: 50

TR 153/HIGHLINE RD

Good

Over: TRIB TO SUGAR CREEK

1.5MI SE FO TRENTON, Clinton, IL

Built 2000 Load: 32.4 t ADT: 200

TR 190/SCHNITZMEYE

Good

Over: PRAIRIE BRANCH

2 MI NE HOFFMAN, Clinton, IL

Built 2000 Load: 32.4 t ADT: 25

TR 165/FELTON RD

Good

Over: PRAIRIE CK BRANCH

1MI W SHATTUC RD, Clinton, IL

Built 2000 Load: 32.4 t ADT: 25

BOND RD TR 1

Good

Over: TRIB. LOCUST FORK CK

1 MI NW JAMESTOWN, Clinton, IL

Built 2002 Load: 32.4 t ADT: 200

FRICKER RD

Good

Over: SPANKER BRANCH

2MI NW ST. ROSE, Clinton, IL

Built 2006 Load: 32.4 t ADT: 150

MILL ROAD

Good

Over: TRIB TO SUGAR CREEK

.5 MI SO.OF TRENTON, Clinton, IL

Built 2007 Load: 32.4 t ADT: 650

JOLLIFF BRIDGE RD

Good

Over: TRIB CROOKED CRK

.5M N OF CENTRALIA, Clinton, IL

Built 2008 Load: 32.4 t ADT: 800

TR 137 SAND RIDGE

Good

Over: LOST CK

3.4 M E OF HUEY, Clinton, IL

Built 2009 Load: 32.4 t ADT: 250

TR 101/OLD STATE R

Good

Over: LAKE BRANCH

2 MI NW BREESE, Clinton, IL

Built 2009 Load: 32.4 t ADT: 350

TR 165 Felton Road

Good

Over: Prairie Creek

3 Mi. S. of US 50, Clinton, IL

Built 2015 Load: 32.4 t ADT: 150

TR 109 Old State R

Good

Over: Shoal Creek

2 Mi N of Breese, Clinton, IL

Built 2018 Load: 32.4 t ADT: 750

BROOKSIDE AV/FAU86

Good

Over: SEWER CREEK

BROOKSIDE AVE, Clinton, IL

Built 1977 Load: 32.4 t ADT: 2,400

TR 126/FLAT BRANCH

Good

Over: FLAT BRANCH CREEK

2 MI SW MARYDALE, Clinton, IL

Built 1978 Load: 32.4 t ADT: 200

TR 175/CRILEY ROAD

Good

Over: CRILEY BRANCH

1.8 MI. N. CENTRALIA, Clinton, IL

Built 1982 Load: 32.4 t ADT: 200

Showing 15,951-16,000 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.