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

MOATE ROAD

Fair

Over: DRAINAGE DITCH

0.3 MI. N. FRITZ RD., Winnebago, IL

Built 1999 Load: 39.5 t ADT: 25

HARRISON AVE

Fair

Over: ROCK RIVER

0.2 MI E OF ILL RT 2, Winnebago, IL

Built 1975 Load: 39.5 t ADT: 10,200

CHESTNUT ST

Fair

Over: ROCK RIVER

0.1 MI E OF MAIN ST, Winnebago, IL

Built 1962 Load: 39.5 t ADT: 8,200

FAS 359 CH 4

Fair

Over: W BR PANTHER CREEK

0.5 MI E ROANOKE, Woodford, IL

Built 1987 Load: 39.5 t ADT: 650

CH 51

Fair

Over: FALL CREEK

1.0 NE FALL CREEK, Adams, IL

Built 1948 Load: 39.9 t ADT: 500

US BR 20

Fair

Over: KISHWAUKEE RIVER

E EDGE OF BELVIDERE, Boone, IL

Built 1986 Load: 39.9 t ADT: 11,100

US 52 & IL 64

Fair

Over: PLUM RIVER

0.6MI. E. OF IL 84, Carroll, IL

Built 1999 Load: 39.9 t ADT: 3,450

EILER ROAD - TR 21

Fair

Over: MIDDLE CREEK

2.5 MI NNW NEWMANSV, Cass, IL

Built 1980 Load: 39.9 t ADT: 25

TR-130

Fair

Over: LITTLE INDIAN CREEK

2.5 MI SW PHILADELPH, Cass, IL

Built 1983 Load: 39.9 t ADT: 50

CRESCENT DR/ PED B

Fair

Over: PHINNEY BRANCH

.7MI SE KIRBY/DUNCAN, Champaign, IL

Built 2004 Load: 39.9 t ADT: 450

TR 273

Fair

Over: COTTONWOOD CREEK

4 MI W MILLERSVILLE, Christian, IL

Built 1996 Load: 39.9 t ADT: 50

OLD US 40

Fair

Over: KETTERING BRANCH

.23 MI W MARTINSVILL, Clark, IL

Built 1986 Load: 39.9 t ADT: 1,300

FAU 7643

Fair

Over: CASSEL CREEK

2.0 MI S CHARLESTON, Coles, IL

Built 1937 Load: 39.9 t ADT: 2,350

US 12,20,45 MANNHE

Fair

Over: RR - UP PROVISO YD

0.3 M S US 20, Cook, IL

Built 1954 Load: 39.9 t ADT: 43,600

JOLIET RD

Fair

Over: RR - CSXT & IHB

0.2 M NE 55TH ST, Cook, IL

Built 1932 Load: 39.9 t ADT: 9,600

139TH ST

Fair

Over: RR - CSX & IHB

0.5 M W WESTERN AVE, Cook, IL

Built 1960 Load: 39.9 t ADT: 5,050

IL 171 SB ELEVATED

Fair

Over: STA 53&15 TO 63&18

0.5 M SE JOLIET RD, Cook, IL

Built 1964 Load: 39.9 t ADT: 40,100

IL 394 SB

Fair

Over: RR - CN

.2 MI S. I-80, Cook, IL

Built 2006 Load: 39.9 t ADT: 89,200

ISABELLA ST

Fair

Over: N SHORE CHANNEL

1 M E GREEN BAY P6, Cook, IL

Built 1908 Load: 39.9 t ADT: 1,300

I-294 NB

Fair

Over: DES PLAINES RIV

0.6 M S ILL 62 P11, Cook, IL

Built 1958 Load: 39.9 t ADT: 82,250

I-74 (EB)

Fair

Over: SALT CREEK

E FARMER CITY, De Witt, IL

Built 1970 Load: 39.9 t ADT: 10,750

FAS 1751(US-40)

Fair

Over: HURRICANE CREEK

2.3 MI E BOND CO LN, Fayette, IL

Built 1943 Load: 39.9 t ADT: 1,400

ILL 78 & 97

Fair

Over: SPOON RIVER OVERFLOW

1.5 MI N JCT US 136, Fulton, IL

Built 1989 Load: 39.9 t ADT: 3,000

CAMP RD - TR 126

Fair

Over: TATER CREEK

SW-31-T5NR2E, Fulton, IL

Built 1989 Load: 39.9 t ADT: 50

TR 52

Fair

Over: ROBINSON CREEK

2.0 MI E NAUVOO, Hancock, IL

Built 1984 Load: 39.9 t ADT: 50

ILL 34

Fair

Over: HICKS BRANCH

3.2 MI S OF HEROD, Hardin, IL

Built 1924 Load: 39.9 t ADT: 1,200

FAS 1324/OLD US 45

Fair

Over: LANGAN CREEK

2.3 MI S OF CHEBANSE, Iroquois, IL

Built 1987 Load: 39.9 t ADT: 1,900

ILL 17 WB

Fair

Over: DRAIN DT

3.5 M E OF KANKAKEE, Kankakee, IL

Built 1964 Load: 39.9 t ADT: 11,900

ILL 17 EB

Fair

Over: DRAIN DT

3.5 M E OF KANKAKEE, Kankakee, IL

Built 1964 Load: 39.9 t ADT: 11,900

CH 35

Fair

Over: MINNIE CR

3.5 MI S KANKAKEE, Kankakee, IL

Built 1905 Load: 39.9 t ADT: 150

TR 142

Fair

Over: N BRANCH ROCK CREEK

3MI NW MANTENO, Kankakee, IL

Built 1969 Load: 39.9 t ADT: 250

FAU 6189/RIVER RD

Fair

Over: GAR CREEK

.1 MI E RTE 45/52, Kankakee, IL

Built 2001 Load: 39.9 t ADT: 2,650

PLATTVILLE RD

Fair

Over: AUX SABLE CREEK

0.7 MI E OF RTE 47, Kendall, IL

Built 1995 Load: 39.9 t ADT: 300

I-94 NB

Fair

Over: DES PLAINES RIVER

I94 .7M N ILL 120, Lake, IL

Built 1958 Load: 39.9 t ADT: 47,800

TR 322A

Fair

Over: OTTER CREEK

E 19TH N 1500, LaSalle, IL

Built 1934 Load: 39.9 t ADT: 275

IL 251

Fair

Over: WILLOW CREEK

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

Built 2000 Load: 39.9 t ADT: 1,100

FAP 716 (IL 48)

Fair

Over: SPRING CREEK

N OF MCKINLEY AVE, Macon, IL

Built 2007 Load: 39.9 t ADT: 14,800

CH 73

Fair

Over: PADDOCK CREEK

4.5 MI E MEADOWBROOK, Madison, IL

Built 1987 Load: 39.9 t ADT: 1,950

TR 121

Fair

Over: SEVEN MILE CREEK

0.25 MI W OF CH 8, Massac, IL

Built 1990 Load: 39.9 t ADT: 50

TR 0092

Fair

Over: MACOUPIN CK

1.2 MI NE FARMERSVLE, Montgomery, IL

Built 1973 Load: 39.9 t ADT: 50

ILL 38

Fair

Over: KYTE CREEK

.4 MI E OF ILL 251, Ogle, IL

Built 1983 Load: 39.9 t ADT: 8,150

TR 284

Fair

Over: S FORK MCKEE CREEK

1.2 MI NE N SALEM, Pike, IL

Built 1959 Load: 39.9 t ADT: 250

FAS 941

Fair

Over: INDIAN CAMP CREEK

ULLIN, Pulaski, IL

Built 1996 Load: 39.9 t ADT: 1,200

VETERANS/IL 4 (SB)

Fair

Over: SPRING CREEK

.27M S JEFFRSN/IL125, Sangamon, IL

Built 1984 Load: 39.9 t ADT: 22,100

ILL 93

Fair

Over: E FORK SPOON RIVER

2.5 MI W OF BRADFORD, Stark, IL

Built 1993 Load: 39.9 t ADT: 950

TR 33D

Fair

Over: DEER CREEK

SE.COR-6-T25NR2W, Tazewell, IL

Built 1975 Load: 39.9 t ADT: 200

TR 133A

Fair

Over: PRAIRIE CREEK

E.CTR-29-T24NR3W, Tazewell, IL

Built 1975 Load: 39.9 t ADT: 75

TR 15

Fair

Over: WHISKEY CREEK

2 mi S of Rankin, Vermilion, IL

Built 2020 Load: 39.9 t ADT: 50

FAP-823 (ILL-15)

Fair

Over: POND CREEK

1.5 MI E FAIRFIELD, Wayne, IL

Built 1984 Load: 39.9 t ADT: 3,900

GARDEN PLAIN ROAD

Fair

Over: CATTAILCREEK

5.2 MI. SW. US 30, Whiteside, IL

Built 1990 Load: 39.9 t ADT: 725

Showing 12,001-12,050 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.