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-39/US 51

Fair

Over: STREAM

2.38 MI N OF ILL 17, Marshall, IL

Built 1991 Load: 48.6 t ADT: 16,500

US 67

Fair

Over: CAMP CREEK

3 MI N OF INDUSTRY, McDonough, IL

Built 1924 Load: 48.6 t ADT: 2,300

US 136

Fair

Over: MUD CREEK

2.09 M W OF US 51, McLean, IL

Built 2009 Load: 48.6 t ADT: 3,000

I-55 (SB)

Fair

Over: BURLINGTN NORTHRN RR

1.8M N IL 16 INT., Montgomery, IL

Built 1973 Load: 48.6 t ADT: 13,250

IL 72

Fair

Over: BLACK WALNUT CREEK

2 MI. E. OF BYRON, Ogle, IL

Built 1994 Load: 48.6 t ADT: 3,350

ILL 251

Fair

Over: KYTE CREEK/Bike Path

0.6 MI. N. OF IL 38, Ogle, IL

Built 1996 Load: 48.6 t ADT: 7,350

ILL 8

Fair

Over: BIG HOLLOW CREEK

.75 MI N POTTSTOWN, Peoria, IL

Built 2010 Load: 48.6 t ADT: 2,750

VETERANS/IL 4 (NB)

Fair

Over: SPRING CREEK

.27M S JEFFRSN/IL125, Sangamon, IL

Built 1984 Load: 48.6 t ADT: 22,100

TR 223

Fair

Over: STREAM

1.0 MI NW STRASBURG, Shelby, IL

Built 2013 Load: 48.6 t ADT: 75

I 255 NB RMP 1609

Fair

Over: CANTEEN CREEK

.50 S MADISON CO LIN, St. Clair, IL

Built 1983 Load: 48.6 t ADT: 1,850

WB I-74

Fair

Over: DIVERSION CHANNEL

7/8 MI W OF ILL 116, Tazewell, IL

Built 1959 Load: 48.6 t ADT: 28,500

US 150

Fair

Over: LITTLE FARM CREEK

3M E 150 & 8 E.PEO., Tazewell, IL

Built 1992 Load: 48.6 t ADT: 5,000

I-74 (EB)

Fair

Over: STONY CREEK

S OF DANVILLE, Vermilion, IL

Built 1964 Load: 48.6 t ADT: 9,150

I-74 (WB)

Fair

Over: STONY CREEK

S OF DANVILLE, Vermilion, IL

Built 1964 Load: 48.6 t ADT: 9,150

IL 9 (FAP 697)

Fair

Over: CREEK

.4 MI E OF IL 1, Vermilion, IL

Built 1967 Load: 48.6 t ADT: 4,700

FAU 7045(Bowman Av

Fair

Over: STREAM

BOWMAN/ N. POLAND RD, Vermilion, IL

Built 1939 Load: 48.6 t ADT: 4,450

IL 148-FAP 726

Fair

Over: LITTLE WOLF CREEK

3.3 MI N OF I-57, Williamson, IL

Built 1958 Load: 48.6 t ADT: 6,150

9TH STREET

Fair

Over: KEITH CREEK

0.5 M N OF BROADWAY, Winnebago, IL

Built 1984 Load: 48.6 t ADT: 2,100

I 39/US 51

Fair

Over: E BRANCH PANTHER CK

2.5 MI N OF US 24, Woodford, IL

Built 1992 Load: 48.6 t ADT: 16,200

I57 RAMP #13.41

Fair

Over: DITCH

SW OF CHAMPAIGN, Champaign, IL

Built 2006 Load: 48.9 t ADT: 1,150

IL 59 & HORSE PAT

Fair

Over: POPLAR CREEK

.01 M S IL 58, Cook, IL

Built 1977 Load: 48.9 t ADT: 37,200

FAP 776 (ILL-142)

Fair

Over: TEN MILE CREEK

2.3 MI S ILL 14, Hamilton, IL

Built 1997 Load: 48.9 t ADT: 2,550

ILL 96

Fair

Over: DUGOUT CREEK

.5 MI E OF LOMAX, Henderson, IL

Built 1938 Load: 48.9 t ADT: 1,000

FAI 80 EB

Fair

Over: MUD CREEK

0.7 MI W JCT ILL 78, Henry, IL

Built 1961 Load: 48.9 t ADT: 8,800

FAI-57 NB

Fair

Over: LANGAN CREEK

2.22 MI S FAS 1322, Iroquois, IL

Built 2014 Load: 48.9 t ADT: 9,550

US 150

Fair

Over: SPOON RIVER TRIB.

3.8 MI W JCT 180/150, Knox, IL

Built 2003 Load: 48.9 t ADT: 1,100

I-72 (EB)

Fair

Over: SPRING CREEK

1.25 MI E FORSYTH, Macon, IL

Built 1975 Load: 48.9 t ADT: 6,150

I-72 (WB)

Fair

Over: SPRING CREEK

1.25 MI E FORSYTH, Macon, IL

Built 1975 Load: 48.9 t ADT: 6,150

FAP 730 US 51

Fair

Over: PEDESTRIAN WALKWAY

1.93 MI SO OF I-55, McLean, IL

Built 1983 Load: 48.9 t ADT: 23,500

IL 16

Fair

Over: BRUSH CREEK

1.35M W IL16/127 JCT, Montgomery, IL

Built 1968 Load: 48.9 t ADT: 6,650

FAI 55 and FR's

Fair

Over: SHOP CREEK TRIB

.76 Mi N IL 108, Montgomery, IL

Built 1942 Load: 48.9 t ADT: 26,800

ILL 128(FAP 770)

Fair

Over: WILBORN CREEK

1.25 MI S BETHANY RD, Moultrie, IL

Built 1980 Load: 48.9 t ADT: 2,300

ILL 72

Fair

Over: STILLMAN CREEK

.13 MI E MERIDIAN RD, Ogle, IL

Built 1930 Load: 48.9 t ADT: 3,850

IL 106

Fair

Over: PIGEON CREEK

3.6M W IL96/HULL, Pike, IL

Built 1965 Load: 48.9 t ADT: 1,350

IL 26/FAS 2370

Fair

Over: CLEAR CREEK

7.95 MI S OF IL 71, Putnam, IL

Built 2001 Load: 48.9 t ADT: 800

CH 16

Fair

Over: POND CREEK

0.1 MI E STONEFORT, Saline, IL

Built 1983 Load: 48.9 t ADT: 250

CH 33 (FAS 656)

Fair

Over: LITTLE WABASH RIVER

2 MI W OF NEOGA, Shelby, IL

Built 2013 Load: 48.9 t ADT: 1,250

IL 117

Fair

Over: WALNUT CR

1.26 MI S OF US 24, Woodford, IL

Built 2005 Load: 48.9 t ADT: 8,700

IL 133 (FAP 749)

Fair

Over: LITTLE EMBARRAS R

2.0 MI E OF OAKLAND, Coles, IL

Built 2007 Load: 49.2 t ADT: 2,000

IL 171 NB TO I-55

Fair

Over: SAN & SHIP CANAL

1 M N ARCHER AVE, Cook, IL

Built 1981 Load: 49.2 t ADT: 14,500

I-90 SKYWAY

Fair

Over: GROUND SE COMM AVE

0.06 M SE COMM AV, Cook, IL

Built 1958 Load: 49.2 t ADT: 28,700

FAP-328 (US-45)

Fair

Over: BISHOP CREEK

5 MI S ILL-37 JCT, Effingham, IL

Built 1977 Load: 49.2 t ADT: 3,150

ILL 14

Fair

Over: BIG MUDDY RIVER

1.8 MI E BUCKNER, Franklin, IL

Built 1923 Load: 49.2 t ADT: 6,750

FAI 80 NB

Fair

Over: MINERAL CREEK

0.7 MI N JCT US 6, Henry, IL

Built 1965 Load: 49.2 t ADT: 10,800

US 6

Fair

Over: SPRING CREEK

3.8 MI. E. OF IL 82, Henry, IL

Built 2001 Load: 49.2 t ADT: 2,400

I-55 NB

Fair

Over: KICKAPOO CREEK

.5 N IL10 NW LINCOLN, Logan, IL

Built 1973 Load: 49.2 t ADT: 15,150

IL 9

Fair

Over: SHAW CREEK

0.75 MI E OF ILL 41, McDonough, IL

Built 2010 Load: 49.2 t ADT: 800

FAI 72 EB

Fair

Over: MAUVAISE TERRE CR

0.8MI SW I72/BUS I72, Morgan, IL

Built 1975 Load: 49.2 t ADT: 4,975

FAI 72 WB

Fair

Over: MAUVAISE TERRE CR

0.8MI SW I72/BUS I72, Morgan, IL

Built 1975 Load: 49.2 t ADT: 4,975

WOOSUNG RD

Fair

Over: SEVENMILE BRANCH

4.0 MI NW DIXON, Ogle, IL

Built 2010 Load: 49.2 t ADT: 100

Showing 13,201-13,250 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.