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

FELL RD

Good

Over: GREEN RIVER TRIB

6 MI NE OF AMBOY, Lee, IL

Built 2016 Load: 32.4 t ADT: 25

HALLIGAN ROAD

Good

Over: MAIN DITCH

1.5 M S STERLING RD, Lee, IL

Built 1983 Load: 32.4 t ADT: 10

VAN ORIN RD (TR 12

Good

Over: TRIB. OF GREEN RIVER

0.1 MI N. MAYTOWN RD, Lee, IL

Built 1992 Load: 32.4 t ADT: 50

TWIST RD / TR 124

Good

Over: FRANKLIN CREEK

3 MI NW FRANKLIN GRV, Lee, IL

Built 1996 Load: 32.4 t ADT: 75

TR118B/ROBBINS RD

Good

Over: CHAMBERLAIN CREEK

3.5 MI W FRNKLN GROV, Lee, IL

Built 2015 Load: 32.4 t ADT: 50

SAUK RD

Good

Over: BRANCH OF ROCK RIVER

0.5 MI N OF IL RTE 2, Lee, IL

Built 1980 Load: 32.4 t ADT: 25

TIMBER CREEK RD

Good

Over: REID CREEK

5 MI W OF DIXON, Lee, IL

Built 2004 Load: 32.4 t ADT: 125

ELVA ROAD

Good

Over: STEWARD CREEK

0.9 MI E IL 251, Lee, IL

Built 1976 Load: 32.4 t ADT: 20

THORPE ROAD

Good

Over: TRIB OF GREEN RIVER

1.0 M S REYNOLDS RD, Lee, IL

Built 1985 Load: 32.4 t ADT: 25

CEDAR GROVE RD-TR2

Good

Over: BR. OF BUREAU CREEK

.2 MI. E. OF US 52, Lee, IL

Built 1990 Load: 32.4 t ADT: 375

KNOX RD (TR 202)

Good

Over: BUREAU CREEK

.4 MI NW HENKLE RD, Lee, IL

Built 1993 Load: 32.4 t ADT: 50

WOLF DR (TR 192)

Good

Over: BUREAU CREEK

1 MI N BUREAU CO LN, Lee, IL

Built 1993 Load: 32.4 t ADT: 10

TODD ROAD

Good

Over: TRIB. OF GREEN RIVER

0.25 MI. W. WOLF RD., Lee, IL

Built 1994 Load: 32.4 t ADT: 50

LAMOILLE RD

Good

Over: TRIB OF GREEN RIVER

0.2 MI S SUBLETTE RD, Lee, IL

Built 1996 Load: 32.4 t ADT: 350

CENTER RD

Good

Over: TRIB OF GREEN RIVER

0.7 MI N OF SUBLETTE, Lee, IL

Built 1996 Load: 32.4 t ADT: 25

BASELINE RD

Good

Over: BUREAU CREEK

0.1 MI W CENTER RD, Lee, IL

Built 2002 Load: 32.4 t ADT: 25

SLANT RD

Good

Over: BR OF BUREAU CRK

2.5 MI E OF SUBLETTE, Lee, IL

Built 2003 Load: 32.4 t ADT: 50

BUTLER HILL RD-TR1

Good

Over: STREAM

1.3 MI E BROOKLYN RD, Lee, IL

Built 1987 Load: 32.4 t ADT: 100

THORPE ROAD

Good

Over: TRIB OF GREEN RIVER

JUST S OF HERMAN RD, Lee, IL

Built 1988 Load: 32.4 t ADT: 25

MELUGINS GROVE ROA

Good

Over: TRIB OF GREEN RIVER

.1 MI S HERMAN ROAD, Lee, IL

Built 1989 Load: 32.4 t ADT: 10

TOWN HALL RD (TR23

Good

Over: BR OF GREEN RIVER

2 MI. N. OF US 30, Lee, IL

Built 1989 Load: 32.4 t ADT: 25

MELUGINS GROVE RD.

Good

Over: BR. OF GREEN RIVER

JUST NORTH OF LEE RD, Lee, IL

Built 1991 Load: 32.4 t ADT: 10

RANDALL RD

Good

Over: BR. OF GREEN RIVER

2600E 1030N, Lee, IL

Built 2001 Load: 32.4 t ADT: 25

FISK RD

Good

Over: DRY RUN CREEK

1.3 MI N US 30, Lee, IL

Built 2005 Load: 32.4 t ADT: 35

MERIDIAN RD

Good

Over: TRIB GREEN RIVER

0.5 MI N OF US 30, Lee, IL

Built 2009 Load: 32.4 t ADT: 25

TOWN HALL RD

Good

Over: WILLOW CREEK

8.5 MI SE OF ASHTON, Lee, IL

Built 2013 Load: 32.4 t ADT: 25

JOHNSON ROAD

Good

Over: WILLOW CREEK

0.9 M S OF US RT 30, Lee, IL

Built 1985 Load: 32.4 t ADT: 50

GERMAN ROAD (TR 26

Good

Over: DRY RUN CREEK

1 MI. N. OF US 30, Lee, IL

Built 1989 Load: 32.4 t ADT: 50

WILLOW CREEK RD

Good

Over: DRY RUN CREEK

0.2 MI. W. DEKALB CO, Lee, IL

Built 1997 Load: 32.4 t ADT: 25

WOODLAWN RD

Good

Over: DRY RUN CR

1.5 MI SW OF LEE, Lee, IL

Built 2004 Load: 32.4 t ADT: 50

DREDGE RD

Good

Over: BIG INDIAN CREEK

0.2 MI W OF CO LN RD, Lee, IL

Built 1980 Load: 32.4 t ADT: 50

WELLAND RD-TR3

Good

Over: STREAM

.2 MI W WIXON PIT RD, Lee, IL

Built 1991 Load: 32.4 t ADT: 25

CYCLONE RD (TR 261

Good

Over: UNNAMED STREAM

2 MI S PAW PAW, Lee, IL

Built 1993 Load: 32.4 t ADT: 25

GATES RD

Good

Over: BR. OF INDIAN CREEK

3525E 0375N, Lee, IL

Built 2000 Load: 32.4 t ADT: 10

WELLAND RD

Good

Over: FOUR MI GROVE

5.5 MI SW OF PAW PAW, Lee, IL

Built 2014 Load: 32.4 t ADT: 275

EARLVILLE ROAD

Good

Over: UNNAMED CREEK

3 M S OF S PAW PAW, Lee, IL

Built 2002 Load: 32.4 t ADT: 175

RICHARDS ROAD

Good

Over: BR OF GREEN RIVER

.11 MI N OF SHAW RD, Lee, IL

Built 2003 Load: 32.4 t ADT: 50

WHITE OAKS LN

Good

Over: STREAM

AT CEMENT PLANT, Lee, IL

Built 1993 Load: 32.4 t ADT: 900

STERLING ROAD-TR 1

Good

Over: TRIB. MAIN DITCH

2.3 MI. E. OF ILL 26, Lee, IL

Built 1990 Load: 32.4 t ADT: 725

DRY GULCH ROAD

Good

Over: BR OF GREEN RIVER

1.6 MIN SUBLETTE RD, Lee, IL

Built 1988 Load: 32.4 t ADT: 225

MAIN STREET (AMBOY

Good

Over: BR OF GREEN RIVER

NEAR MAIN-LOCUST INT, Lee, IL

Built 2004 Load: 32.4 t ADT: 1,200

PEORIA AVENUE

Good

Over: ROCK RIVER

DIXON, Lee, IL

Built 2005 Load: 32.4 t ADT: 8,750

ILL 116

Good

Over: TURTLE CREEK

1.08 M E OF I-55, Livingston, IL

Built 1941 Load: 32.4 t ADT: 12,300

LADD ST.

Good

Over: VERMILION RIVER

IN PONTIAC SW SIDE, Livingston, IL

Built 1927 Load: 32.4 t ADT: 4,100

OLD 66 NB/FAS 298

Good

Over: STREAM

0.9 MI SW OF IL 47, Livingston, IL

Built 2001 Load: 32.4 t ADT: 1,350

TR 180

Good

Over: INDIAN CREEK

655 N, 2075 E, Livingston, IL

Built 1977 Load: 32.4 t ADT: 225

CO HWY 27 FAS 2056

Good

Over: VERMILION RIVER

1.5 MI W PONTIAC, Livingston, IL

Built 1985 Load: 32.4 t ADT: 500

CO HWY 13 FAS 354

Good

Over: MOREHOUSE CREEK

2 MI N GRAYMONT, Livingston, IL

Built 1983 Load: 32.4 t ADT: 350

FAU 1356

Good

Over: SMITH BRANCH

1750N,1750E, Livingston, IL

Built 1994 Load: 32.4 t ADT: 200

FAS 267 CH 35

Good

Over: DIAMOND CREEK

2.5 miles E of Dana, Livingston, IL

Built 2012 Load: 32.4 t ADT: 150

Showing 18,751-18,800 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.