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%.

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.

All Bridges in Illinois

I-88 WB

Good

Over: E BR DUPAGE RIVER

0.3M.W.IL-53, DuPage, IL

Built 1958 Load: 40.2 t ADT: 75,650

CH-5

Good

Over: WOLF CREEK

2 MI ESE HOLLAND, Effingham, IL

Built 1993 Load: 40.2 t ADT: 200

ILL 37

Good

Over: STREAM S W.FRANKFORT

SCL WEST FRANKFORT, Franklin, IL

Built 2012 Load: 40.2 t ADT: 7,450

US 24 / IL 9

Good

Over: COPPERAS CR

E.EDGE OF BANNER CL, Fulton, IL

Built 2022 Load: 40.2 t ADT: 7,750

TR 301

Good

Over: TRIB OF WINES

3.25 W. OF OLD KANE, Greene, IL

Built 1995 Load: 40.2 t ADT: 100

CH V16 (Dwight Rd.

Good

Over: Waupecan Creek

0.61 MIS CH-6, Grundy, IL

Built 2015 Load: 40.2 t ADT: 150

FILMAN RD TR-142

Good

Over: TR1B W. FK MAZON RIV

.42 MI S. GARDNER RD, Grundy, IL

Built 1989 Load: 40.2 t ADT: 50

IL 14

Good

Over: TRIB TO LAKEY CREEK

1.8 MI E OF IL 142, Hamilton, IL

Built 2016 Load: 40.2 t ADT: 2,400

IL 92

Good

Over: BIG SLOUGH DITCH

0.7 MI E GRANGE ROAD, Henry, IL

Built 1996 Load: 40.2 t ADT: 1,050

FAP-821 (IL-15)

Good

Over: STREAM

.5 MI W MARKAM CITY, Jefferson, IL

Built 1993 Load: 40.2 t ADT: 3,500

PUMP STA RD/CH 12

Good

Over: OTTER CREEK

0.9 MI W FAS 749, Jersey, IL

Built 1935 Load: 40.2 t ADT: 175

SOUTH WILLOW ROAD

Good

Over: MUDDY PLUM RIVER

5 MI SE STOCKTON, Jo Daviess, IL

Built 2008 Load: 40.2 t ADT: 125

CHICAGO RD

Good

Over: AUX SABLE CK

1.5 MI W OF GROVERD, Kendall, IL

Built 1995 Load: 40.2 t ADT: 350

IL 170

Good

Over: BNSF Railroad

4.7 M N of IL 17, LaSalle, IL

Built 2019 Load: 40.2 t ADT: 1,400

FAS 270 CH 19

Good

Over: First Creek

N 4250 E 315, LaSalle, IL

Built 2014 Load: 40.2 t ADT: 1,100

FAS 1806 (IL 250)

Good

Over: STREAM

0.7 MI W BRIDGEPORT, Lawrence, IL

Built 2017 Load: 40.2 t ADT: 2,050

FAP 332 (IL 1)

Good

Over: BIG SLOUGH

5 MI S LAWRENCEVILLE, Lawrence, IL

Built 2022 Load: 40.2 t ADT: 2,250

TR-188

Good

Over: BRUSHY FORK CREEK

1 MI SE BIRDS, Lawrence, IL

Built 1987 Load: 40.2 t ADT: 50

LINCOLN PKWY.

Good

Over: ICRR

N EDGE LINCOLN, Logan, IL

Built 1996 Load: 40.2 t ADT: 4,950

FAS 1536 (IL 48)

Good

Over: CREEK

2 MI SW OF CISCO, Macon, IL

Built 2000 Load: 40.2 t ADT: 750

IL 255 NB

Good

Over: UPRR

4 mi N of I-270, Madison, IL

Built 1995 Load: 40.2 t ADT: 28,300

TR 64 Norton Road

Good

Over: Turkey Creek

1.5 Mi E of Junction City, Marion, IL

Built 2021 Load: 40.2 t ADT: 200

UNIONVILLE ROAD

Good

Over: CRENSHAW CREEK

3.75 MI E US45, Massac, IL

Built 1956 Load: 40.2 t ADT: 1,150

OLD US 36

Good

Over: SPRING CREEK

2MI E ALEXANDER, Morgan, IL

Built 1997 Load: 40.2 t ADT: 1,000

TR 81B

Good

Over: Jonathan Creek

2 Mi. S. Cadwell, Moultrie, IL

Built 2019 Load: 40.2 t ADT: 150

TR 185A

Good

Over: WHITLEY CREEK

2.5 MI N OF GAYS, Moultrie, IL

Built 2023 Load: 40.2 t ADT: 50

FALCON ROAD

Good

Over: BEAUCOUP CREEK

1.0 MI W OF US 51, Perry, IL

Built 2019 Load: 40.2 t ADT: 50

FAS 940

Good

Over: BIG CREEK #2

1 MI W PERKS, Pulaski, IL

Built 1994 Load: 40.2 t ADT: 350

FAP 332-US 45 (SB)

Good

Over: STREAM

1.5 MI SW ELDORADO, Saline, IL

Built 2002 Load: 40.2 t ADT: 9,550

FAS 1621

Good

Over: LICK CREEK

2.5 N CHATHAM, Sangamon, IL

Built 1973 Load: 40.2 t ADT: 3,700

HILLVIEW ROAD

Good

Over: LITTLE SANDY CREEK

5.5MI S IL106/OLD 36, Scott, IL

Built 1999 Load: 40.2 t ADT: 450

TR 97A

Good

Over: Sand Creek

2.2 Mi. N of Windsor, Shelby, IL

Built 2019 Load: 40.2 t ADT: 50

TR 220

Good

Over: Stream

2.1 Mi. NW Findlay, Shelby, IL

Built 2012 Load: 40.2 t ADT: 10

N HULBERT RD

Good

Over: MUDDY CREEK

5.0 MI SW ORANGEVILL, Stephenson, IL

Built 2021 Load: 40.2 t ADT: 200

FLANSBURG RD

Good

Over: BR OF PECATONICA RV

4.3 MI E LENA, Stephenson, IL

Built 2018 Load: 40.2 t ADT: 150

ILL 3

Good

Over: BIG MUDDY RIVER

AT JACKSON CO LINE, Union, IL

Built 1958 Load: 40.2 t ADT: 1,100

NASH ROAD

Good

Over: TRIB TO BIG CREEK

5 MI SE OF ANNA, Union, IL

Built 2020 Load: 40.2 t ADT: 10

TR 160

Good

Over: PICAYUNE CR

NE-13-T9NR2W, Warren, IL

Built 1982 Load: 40.2 t ADT: 25

SBI 13B (UNMARKED)

Good

Over: BR.L.CRAB ORCHARD CR

.09 mi w Saraville R, Williamson, IL

Built 2012 Load: 40.2 t ADT: 1,600

TR 9

Good

Over: STREAM

4 MI NE OF CORINTH, Williamson, IL

Built 1991 Load: 40.2 t ADT: 100

BLACKHAWK RD

Good

Over: KISHWAUKEE RIVER

S. OF ROCKFORD, Winnebago, IL

Built 1996 Load: 40.2 t ADT: 3,450

ROCKTON ROAD

Good

Over: DRY RUN CREEK

0.3 MI E OF CH68, Winnebago, IL

Built 1976 Load: 40.2 t ADT: 750

FAIRVIEW BL

Good

Over: KEITH CREEK,NORTH BR

0.06 MI N STATE, Winnebago, IL

Built 1955 Load: 40.2 t ADT: 8,050

IL 96

Good

Over: WHITE OAK CREEK

1.6M S CH 41 IN LIMA, Adams, IL

Built 1994 Load: 40.5 t ADT: 2,300

US 24

Good

Over: ROCK CREEK

1.2 MI W FOWLER, Adams, IL

Built 1994 Load: 40.5 t ADT: 4,000

FAS 591 CH-5

Good

Over: TOURNEAR CREEK

2 M SE BURTON, Adams, IL

Built 2009 Load: 40.5 t ADT: 400

FAS 942

Good

Over: CACHE RIVER

ALEX/PULASKI CO LI, Alexander, IL

Built 2004 Load: 40.5 t ADT: 850

FAU 7123(IL 10)

Good

Over: KASKASKIA RIVER

1 MI E BONDVILLE, Champaign, IL

Built 1992 Load: 40.5 t ADT: 3,200

FAP 332(IL 1)

Good

Over: SNYDER CREEK

4 MI N OF WEST UNION, Clark, IL

Built 1992 Load: 40.5 t ADT: 2,400

FAS 1707(US 40)

Good

Over: KETTERING BRANCH

N EDGE MARTINSVILLE, Clark, IL

Built 1995 Load: 40.5 t ADT: 2,000

Showing 23,451-23,500 of 27,743 bridges

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.

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.