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

TR 297 River Rd

Good

Over: Skillet Fork Creek

3 Mi SE of Iuka, Marion, IL

Built 2021 Load: 43.1 t ADT: 75

I-74 WB

Good

Over: LITTLE KICKAPOO CR

7.6 MI E OF US 51, McLean, IL

Built 1968 Load: 43.1 t ADT: 10,800

FAS 491 CH 15

Good

Over: BR MACKINAW RIVER

3.0 MI S COLFAX, McLean, IL

Built 1988 Load: 43.1 t ADT: 775

GLENN AVE.

Good

Over: BR SUGAR CREEK

0.75 MI NNE 51 & 150, McLean, IL

Built 2020 Load: 43.1 t ADT: 225

ILL 89

Good

Over: ALLFORKS CREEK SOUTH

1 MI N OF IL 71, Putnam, IL

Built 2012 Load: 43.1 t ADT: 4,100

PORT BYRON ROAD

Good

Over: CANOE CREEK

2 MI W OF I-88, Rock Island, IL

Built 1989 Load: 43.1 t ADT: 650

IL 125

Good

Over: TRIB PRAIRIE CREEK

2.3 MI W IL 97, Sangamon, IL

Built 2001 Load: 43.1 t ADT: 6,150

TR 134

Good

Over: Sugar Creek Trib

0.62 mi W IL 4, Sangamon, IL

Built 2019 Load: 43.1 t ADT: 75

WASHINGTONFAU-7977

Good

Over: SPRING CREEK

0.02MI WEST KOKEMILL, Sangamon, IL

Built 1984 Load: 43.1 t ADT: 5,100

WEST PRESTON ROAD

Good

Over: PRESTON CREEK

1.0 MI S OF US RT 20, Stephenson, IL

Built 2022 Load: 43.1 t ADT: 50

ILL RTE 127

Good

Over: MILL CREEK

0.5 MI N MILL CREEK, Union, IL

Built 1988 Load: 43.1 t ADT: 900

CH 3

Good

Over: MIDDLE BRANCH

1.5 MI S CHENEYVILLE, Vermilion, IL

Built 1941 Load: 43.1 t ADT: 250

ILL 141

Good

Over: TRIB CANE CREEK

4.75 MI E JCT ILL-1, White, IL

Built 2010 Load: 43.1 t ADT: 2,550

CHANNAHON MINOKA R

Good

Over: I&M CANAL

0.3 MI NW CHANNAHON, Will, IL

Built 1947 Load: 43.1 t ADT: 4,900

WB IL 13

Good

Over: BNSF RR

MARION, Williamson, IL

Built 2015 Load: 43.1 t ADT: 26,300

FAS 2904

Good

Over: LITTLE SALINE CREEK

2 MI NE PULLEYS MILL, Williamson, IL

Built 1983 Load: 43.1 t ADT: 3,850

US 20 BR

Good

Over: KEITH CREEK

.75 MI W ALPINE RD, Winnebago, IL

Built 1993 Load: 43.1 t ADT: 20,100

BURDEN ROAD

Good

Over: BR ROCK RIVER

0.2 MI N RT 173, Winnebago, IL

Built 1966 Load: 43.1 t ADT: 2,550

MAIN STREET

Good

Over: KINNIKINNICK CREEK

IN ROSCOE, Winnebago, IL

Built 2000 Load: 43.1 t ADT: 5,600

TR 419 (N 900th AV

Good

Over: BR of Tournear Creek

0.8 MI E FAS 594/CH4, Adams, IL

Built 2021 Load: 43.4 t ADT: 175

FAP 14-ILL 3-FH 9

Good

Over: SEXTON CREEK

GALE, Alexander, IL

Built 1990 Load: 43.4 t ADT: 3,600

IL 78

Good

Over: PANTHER CREEK OVRFLW

SW SIDE CHANLERVILLE, Cass, IL

Built 2012 Load: 43.4 t ADT: 1,450

FAS 799 (CH 3)

Good

Over: Little Wabash River

0.5 MI. E. Louisvill, Clay, IL

Built 2022 Load: 43.4 t ADT: 950

IL 133 (FAP 749)

Good

Over: EMBARRAS RIVER

1.5 MI W OAKLAND, Coles, IL

Built 2015 Load: 43.4 t ADT: 2,050

FAS 668(CH 16)

Good

Over: GREASY CREEK TRIB

1.3 MI E FAIRGRANGE, Coles, IL

Built 1996 Load: 43.4 t ADT: 450

FAP 325 (IL 16)

Good

Over: Little Wabash C

2 M. West of Mattoon, Coles, IL

Built 2018 Load: 43.4 t ADT: 3,350

CRAWFORD AVE

Good

Over: CAL UNION DITCH TRIB

0.8 M N 183RD ST, Cook, IL

Built 1993 Load: 43.4 t ADT: 14,000

FAP 332 (IL1)

Good

Over: SUGAR CREEK

1 MI N LAWRENCE CO L, Crawford, IL

Built 2022 Load: 43.4 t ADT: 3,600

US 51 (SB)(FAP 322

Good

Over: TEN MILE CREEK

0.4 M S OF BUS US 51, De Witt, IL

Built 1985 Load: 43.4 t ADT: 7,450

IL 64 FAP 307

Good

Over: E/S BR KISHWAUKEE RV

1 MI E JCT IL 23(N), DeKalb, IL

Built 2012 Load: 43.4 t ADT: 7,700

TR 187 A

Good

Over: DRAINAGE DITCH

1.5 MI SW HINDSBORO, Douglas, IL

Built 2006 Load: 43.4 t ADT: 50

TR 218

Good

Over: Brushy Creek

2.7 mi SE of Murdock, Douglas, IL

Built 2023 Load: 43.4 t ADT: 25

FAP-322 (US-51)

Good

Over: ASH CREEK

3.8 MI S SHELBY C L, Fayette, IL

Built 1988 Load: 43.4 t ADT: 2,800

HILLVIEW ELDRED Rd

Good

Over: TRIMLEY CREEK

2 M N HILLVIEW, Greene, IL

Built 1957 Load: 43.4 t ADT: 350

IL 267

Good

Over: LICK CREEK North

0.78 M S MORGAN CO L, Greene, IL

Built 1992 Load: 43.4 t ADT: 2,250

PRICE ST

Good

Over: I & M Canal

Wm. G. Stratton SP, Grundy, IL

Built 2020 Load: 43.4 t ADT: 300

EDMONSON LANDING

Good

Over: HANEY CREEK

5MI NE CAVE N ROCK, Hardin, IL

Built 2019 Load: 43.4 t ADT: 100

TR 191

Good

Over: STREAM

SE-5-T8NR4W, Henderson, IL

Built 1910 Load: 43.4 t ADT: 25

US 6

Good

Over: SHABBONA SPECL DITCH

2 MI. E. ATKINSON, Henry, IL

Built 1993 Load: 43.4 t ADT: 1,500

IL 116

Good

Over: LANGAN CREEK

3.97M E FORD C LN, Iroquois, IL

Built 1992 Load: 43.4 t ADT: 850

FAP-95 (ILL-33)

Good

Over: BRANCH LAWS CREEK

2 MI SE WHEELER, Jasper, IL

Built 1983 Load: 43.4 t ADT: 5,700

CH 5

Good

Over: STREAM

.75 E ILL 109, Jersey, IL

Built 1925 Load: 43.4 t ADT: 450

FAS 929

Good

Over: MCCORKLE CREEK

.25 MI S IL 146, Johnson, IL

Built 2004 Load: 43.4 t ADT: 750

IL 25 EB STEARNS

Good

Over: E BR BREWSTER CREEK

0.3 M E Gilbert St, Kane, IL

Built 2014 Load: 43.4 t ADT: 5,350

CH 11

Good

Over: SPOON RIVER

NE-1-T10NR3E, Knox, IL

Built 2016 Load: 43.4 t ADT: 75

US 6

Good

Over: MILLIKEN CR

1.73 MI E OF ILL 71, LaSalle, IL

Built 2016 Load: 43.4 t ADT: 4,050

ILL 251

Good

Over: STEWARD CREEK

2.5 MI. NW. STEWARD, Lee, IL

Built 2000 Load: 43.4 t ADT: 1,600

US 52

Good

Over: STREAM

1 MI. S. OF I-88, Lee, IL

Built 1990 Load: 43.4 t ADT: 2,900

LEE CENTER RD-FAS1

Good

Over: BR. OF GREEN RIVER

.2 MI W STERLING RD, Lee, IL

Built 1991 Load: 43.4 t ADT: 750

ILL 47

Good

Over: INDIAN CREEK

8.91 M S OF US 24, Livingston, IL

Built 1993 Load: 43.4 t ADT: 2,450

Showing 24,001-24,050 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.