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

COUNTY HWY 23

Fair

Over: LICK CREEK

1.5 SE OF CURRAN, Sangamon, IL

Built 1963 Load: 40.5 t ADT: 750

FAI 72 EB

Fair

Over: WALNUT CREEK

1.2 M W CO LINE, Scott, IL

Built 1976 Load: 40.5 t ADT: 4,400

FAI 72 WB

Fair

Over: WALNUT CREEK

1.2 M W CO LINE, Scott, IL

Built 1976 Load: 40.5 t ADT: 4,400

PEARL CITY RD.

Fair

Over: YELLOW CR. BR.

PEARL CITY, Stephenson, IL

Built 1940 Load: 40.5 t ADT: 2,650

ILL 9

Fair

Over: PRAIRIE CREEK

E OF I-155, Tazewell, IL

Built 1928 Load: 40.5 t ADT: 2,700

US 150 (FAS 1512)

Fair

Over: MIDDLEFORK VERM RIV

2.6 MI W OF DANVILLE, Vermilion, IL

Built 1928 Load: 40.5 t ADT: 3,600

FAP 827(ILL-15)

Fair

Over: WABASH RIVER

MT CARMEL, Wabash, IL

Built 2010 Load: 40.5 t ADT: 6,800

SB US 67

Fair

Over: CEDAR CREEK

4 MI N OF ROSEVILLE, Warren, IL

Built 1995 Load: 40.5 t ADT: 4,000

OLD US 67

Fair

Over: TRIB TOWN BRANCH CR

0.5 MI N OF ILL 116, Warren, IL

Built 2002 Load: 40.5 t ADT: 800

TR 74

Fair

Over: WILLIAMS CR

1.25 MI S ILL 15, Washington, IL

Built 1925 Load: 40.5 t ADT: 25

US 6

Fair

Over: I & M CANAL

1.6 M W OF I-55, Will, IL

Built 1940 Load: 40.5 t ADT: 17,100

US 45

Fair

Over: HICKORY CREEK

2.2 M S OF I-80, Will, IL

Built 1991 Load: 40.5 t ADT: 33,700

OLD CHICAGO RD

Fair

Over: FORKED CREEK

1 M N OF IL 102, Will, IL

Built 1995 Load: 40.5 t ADT: 1,550

COURT ST.(MAN.MON.

Fair

Over: I.C.R.R.

0.1M.E.OF IL-50, Will, IL

Built 1990 Load: 40.5 t ADT: 4,550

FAU-8500 (CentPtWa

Fair

Over: Cedar Creek

.5 M W of Millsdale, Will, IL

Built 2009 Load: 40.5 t ADT: 8,350

FAU-8500 (CntPtWay

Fair

Over: Cedar Creek

0.3 M N of Millsdale, Will, IL

Built 2009 Load: 40.5 t ADT: 9,200

FAI-355

Fair

Over: N Fraction Run Crk

0.7M N of Bruce Rd, Will, IL

Built 2008 Load: 40.5 t ADT: 62,700

TR 140

Fair

Over: HURRICANE CREEK

0.5 MILE N OF COLP, Williamson, IL

Built 1981 Load: 40.5 t ADT: 150

FAS 1600 (CH 7)

Fair

Over: ROCK CREEK

1.4 MI S URSA, Adams, IL

Built 1984 Load: 40.8 t ADT: 650

I-180 NB

Fair

Over: BUREAU CREEK

1.2 MI S JCT ILL26, Bureau, IL

Built 1968 Load: 40.8 t ADT: 2,075

I-57(NB)

Fair

Over: Norfolk Southern Railway

SW OF TOLONO, Champaign, IL

Built 1963 Load: 40.8 t ADT: 11,550

FAS 2703(KIN-LOU)

Fair

Over: SUTTON CREEK

2.9 MI E MARION C L, Clay, IL

Built 1938 Load: 40.8 t ADT: 500

IL 394

Fair

Over: NORTH CREEK

2.4 M S I-80, Cook, IL

Built 1954 Load: 40.8 t ADT: 89,200

IL 59

Fair

Over: WETLANDS

0.3 M N OF IL 19, Cook, IL

Built 1997 Load: 40.8 t ADT: 36,200

MADISON ST

Fair

Over: S BR CHICAGO RIV

373 W MADISON, Cook, IL

Built 1922 Load: 40.8 t ADT: 12,100

FAS-1710 (US-40)

Fair

Over: LITTLE WABASH RIVER

2 MI W EFFINGHAM, Effingham, IL

Built 1977 Load: 40.8 t ADT: 5,950

TR-139

Fair

Over: DIETERICH CREEK

1 MI N DIETERICH, Effingham, IL

Built 1909 Load: 40.8 t ADT: 50

TR 71 B WALL

Fair

Over: STREAM

1780E,1000N, Ford, IL

Built 1963 Load: 40.8 t ADT: 25

ILL 14

Fair

Over: STREAM E OF BENTON

6.6 MI E BENTON, Franklin, IL

Built 2004 Load: 40.8 t ADT: 1,500

TR 45

Fair

Over: HURRICANE CK

1.7 MI SE WILMINGTON, Greene, IL

Built 1978 Load: 40.8 t ADT: 50

MINOOKA RD TR 3

Fair

Over: TRIB W FR NETTLE CR

0.57MI E. ROODS RD, Grundy, IL

Built 1991 Load: 40.8 t ADT: 175

ILL 149

Fair

Over: SIX MILE CREEK

0.25 MI.W. HURST, Jackson, IL

Built 1934 Load: 40.8 t ADT: 2,700

IL 25 (BROADWAY)

Fair

Over: INDIAN CREEK

3 M S OF IL 56, Kane, IL

Built 1956 Load: 40.8 t ADT: 18,900

I 57 SB

Fair

Over: Minnie Creek

4.3 M N Chebanse Int, Kankakee, IL

Built 1993 Load: 40.8 t ADT: 9,700

ILL 71

Fair

Over: ROADS CR

.5MI SW NEWARK, Kendall, IL

Built 1997 Load: 40.8 t ADT: 5,100

SHERIDAN RD

Fair

Over: DRAINAGE DITCH

0.44 N OF LAKE COOK, Lake, IL

Built 1925 Load: 40.8 t ADT: 2,000

BARCLAY BLVD.

Fair

Over: APTAKISIC CREEK

0.2M.S.APTAKISIC RD., Lake, IL

Built 1987 Load: 40.8 t ADT: 2,150

ILL 351 FAP 619

Fair

Over: LONE STAR CEMENT RR

2.55 MI S OF US 6, LaSalle, IL

Built 1995 Load: 40.8 t ADT: 3,400

FAI-55 SB

Fair

Over: BR W FORK MAZON R.

3 MI SW OF DWIGHT, Livingston, IL

Built 1972 Load: 40.8 t ADT: 10,450

FAI-55 NB

Fair

Over: BR W FORK MAZON R.

3 MI SW OF DWIGHT, Livingston, IL

Built 1972 Load: 40.8 t ADT: 10,450

TR 95

Fair

Over: DIAMOND CREEK

35 E, 2200 N, Livingston, IL

Built 1965 Load: 40.8 t ADT: 75

IL 3 SB

Fair

Over: WOODRIVER CREEK

W CITY LIMIT E ALTON, Madison, IL

Built 1992 Load: 40.8 t ADT: 21,100

LEE ROAD/ TR 397

Fair

Over: TRIB TO SUGAR CREEK

4.7 MILES S HIGHLAND, Madison, IL

Built 1985 Load: 40.8 t ADT: 225

US 51 SB (FAP 322)

Fair

Over: CROOKED CREEK

N OF CENTRAL CITY, Marion, IL

Built 1982 Load: 40.8 t ADT: 4,050

JACKSON ROAD

Fair

Over: COON CREEK

0.2 MI W BURMA RD, McHenry, IL

Built 1980 Load: 40.8 t ADT: 125

US 67

Fair

Over: EDWARDS RIVER

2 MI N OF VIOLA, Mercer, IL

Built 1998 Load: 40.8 t ADT: 5,300

ILL 64

Fair

Over: KILBUCK CR. TRIB

1.5 MI W DEKALB CO, Ogle, IL

Built 2005 Load: 40.8 t ADT: 4,300

TR 223

Fair

Over: THE SNY

3.0 MI SW HULL, Pike, IL

Built 1958 Load: 40.8 t ADT: 75

TR 205

Fair

Over: BLUE CREEK

5MI NE PITTSFIELD, Pike, IL

Built 1996 Load: 40.8 t ADT: 25

FAS 597

Fair

Over: Bull Run Creek

1.87 mi E FAS 596, Pike, IL

Built 2016 Load: 40.8 t ADT: 250

Showing 12,201-12,250 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.