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

I-74 EB & RAMP 21.

Unknown

Over: LYNCH RD.

E OF DANVILLE, Vermilion, IL

Built 1961 ADT: 3,900

BOWMAN AVE(FAU 704

Unknown

Over: TEXAS AVE

E OF DANVILLE, Vermilion, IL

Built 1964 ADT: 250

IL.1/US 150(FAP 33

Unknown

Over: I-74 & CD16.23/16.33

S OF DANVILLE, Vermilion, IL

Built 1965 ADT: 27,200

IL 1 US 150 (FAP 3

Unknown

Over: 14TH ST(FAU 7010)

AT S EDGE DANVILLE, Vermilion, IL

Built 1966 ADT: 1,500

Union Pacific RR

Unknown

Over: IL 9(FAP 697)

3 MI E OF RANKIN, Vermilion, IL

Built 1963 ADT: 1,950

US 150(FAU 7052)

Unknown

Over: I-74

W OF DANVILLE, Vermilion, IL

Built 1960 ADT: 21,200

CNRL RR

Unknown

Over: US 150(FAP 729)

W EDGE DANVILLE, Vermilion, IL

Built 1950 ADT: 12,500

US 150(FAP 729)

Unknown

Over: N FORK VERMILION RIV

IN DANVILLE, Vermilion, IL

Built 1950 ADT: 50

CSX RR

Unknown

Over: US 136(FAP 729)

0.5 MI E OF DANVILLE, Vermilion, IL

Built 1934 ADT: 7,300

"A" AVE (MS 6480)

Unknown

Over: US 150(FAP 729)

IN DANVILLE, Vermilion, IL

Built 1950 ADT: 12,500

UP RR

Unknown

Over: US 136(FAP 709)

.75 MI W ILL 49, Vermilion, IL

Built 1935 ADT: 1,550

CSX RR

Unknown

Over: IL 9(FAP 711)

S CORP LIMITS ALVIN, Vermilion, IL

Built 1934 ADT: 1,350

FAS 331

Unknown

Over: I-74

0.5 MI N OF OAKWOOD, Vermilion, IL

Built 1960 ADT: 25,000

FAU 7043(PERRYSVIL

Unknown

Over: I-74&RMPS17.79/17.87

IN DANVILLE, Vermilion, IL

Built 1962 ADT: 3,400

Batestown (FAU 700

Unknown

Over: FAI 74

W OF DANVILLE, Vermilion, IL

Built 1962 ADT: 21,200

CH 11

Unknown

Over: I-74

N OF MUNCIE, Vermilion, IL

Built 1959 ADT: 25,200

TR 206

Unknown

Over: I-74

1.5 MI NE OF OAKWOOD, Vermilion, IL

Built 1960 ADT: 25,000

TR 250

Unknown

Over: I-74

S OF HILLERY, Vermilion, IL

Built 1962 ADT: 21,200

TR 251 B

Unknown

Over: I-74

1 MI W OF US 150, Vermilion, IL

Built 1960 ADT: 25,000

TR 300

Unknown

Over: I-74

W OF TILTON, Vermilion, IL

Built 1962 ADT: 21,200

FAU 7019(TR 354)

Unknown

Over: I-74

S OF DANVILLE, Vermilion, IL

Built 1962 ADT: 27,200

TR 8 A

Unknown

Over: I-74

1 MI W OF ILL 49, Vermilion, IL

Built 1959 ADT: 24,400

TR 102

Unknown

Over: I-74

2.1 MI NE OF MUNCIE, Vermilion, IL

Built 1959 ADT: 25,200

Norfolk Southern R

Unknown

Over: I-74&CD 16.23/16.33

IN TILTON, Vermilion, IL

Built 1964 ADT: 2,300

PEDESTRIAN BRIDGE

Unknown

Over: 74,CD16.23/.33,2RAMP

S OF DANVILLE, Vermilion, IL

Built 1964 ADT: 3,700

CH 28 (BREWER RD)

Unknown

Over: I-74

SE OF DANVILLE, Vermilion, IL

Built 1962 ADT: 18,300

TR 34 B

Unknown

Over: I-74

N OF FITHIAN, Vermilion, IL

Built 1959 ADT: 25,200

KBS RR

Unknown

Over: CH 34(VOORHEES)

IN DANVILLE, Vermilion, IL

Built 1963 ADT: 3,300

FAU 7045(BOWMAN AV

Unknown

Over: I-74 & RAMP 18.32

S OF DANVILLE, Vermilion, IL

Built 1993 ADT: 650

IL 49 (FAP 840)

Unknown

Over: I-74

NW OF FITHIAN, Vermilion, IL

Built 2008 ADT: 25,200

FAU 7009(CH 7)

Unknown

Over: I-74&CD16.23/16.33

IN TILTON, Vermilion, IL

Built 2022 ADT: 2,500

KBS RR

Unknown

Over: POLAND RD(FAS 501)

3.0 MI NE DANVILLE, Vermilion, IL

Built 1900 ADT: 475

N&S & KDS RR

Unknown

Over: FAU 6998

E DANVILLE WINTER AV, Vermilion, IL

Built 1900 ADT: 3,700

CSX & N&S RR

Unknown

Over: FAIRCHILD(FAU 7002)

IN DANVILLE, Vermilion, IL

Built 1915 ADT: 5,250

N&S RR

Unknown

Over: FAIRCHILD(FAU 7002)

IN DANVILLE, Vermilion, IL

Built 1915 ADT: 5,250

CNRL RR

Unknown

Over: FAIRCHILD(FAU 7002)

AT DANVILLE HIGH S, Vermilion, IL

Built 1905 ADT: 5,250

PEDESTRIAN BRIDGE

Unknown

Over: US 150(FAP 729)

0.75 MI W OF IL 1, Vermilion, IL

Built 1973 ADT: 12,500

"G" ST(FAU 7026)

Unknown

Over: 8TH ST(MS 4070A)

SW SIDE OF TILTON, Vermilion, IL

Built 1980 ADT: 50

CNRL RR

Unknown

Over: SEMINARY (FAU 7004)

DANVILLE, Vermilion, IL

Built 1900 ADT: 3,450

FAU 7010(14TH ST)

Unknown

Over: MS# 8122 (NO NAME)

14TH OVER MAYFIELD, Vermilion, IL

Built 2007 ADT: 25

CSX RR

Unknown

Over: WINTER AVENUE

2.2 MI SW AIRPORT, Vermilion, IL

Built 2009 ADT: 1,000

UP RR

Unknown

Over: TR 5 C

3.5 MI E OF RANKIN, Vermilion, IL

Built 1900 ADT: 75

KBSR RR

Unknown

Over: TR 181 A

.5 MI NE VERM AIRPOR, Vermilion, IL

Built 1900 ADT: 50

CSX RR

Unknown

Over: FAS 501(POLAND RD)

N EDGE OF DANVILLE, Vermilion, IL

Built 1925 ADT: 1,250

CNRL RR

Unknown

Over: TR 269 C

S END KICKAPOO, Vermilion, IL

Built 1900 ADT: 50

CNRL RR

Unknown

Over: FAU 7012(SPELTER AV)

.5 MI N WESTVILLE, Vermilion, IL

Built 1905 ADT: 675

CNRL RR

Unknown

Over: ENGLISH ST(MS 1850)

SE COR SPRHILL CEM, Vermilion, IL

Built 1900 ADT: 225

CAMERON RD

Unknown

Over: US 34

2.25M N OF CAMERON, Warren, IL

Built 1979 ADT: 8,950

TR 232 (165th St)

Unknown

Over: US 34 & Cedar Creek

2.5M SW OF GALESBURG, Warren, IL

Built 1979 ADT: 8,950

US 34

Unknown

Over: US 67

SW EDGE OF MONMOUTH, Warren, IL

Built 1992 ADT: 4,500

Showing 3,651-3,700 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.