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

ILL 26

Fair

Over: BUFFALO CREEK

JCT ILL 26 & US 52, Ogle, IL

Built 1982 Load: 43.1 t ADT: 1,350

ILL 26/US 52

Fair

Over: BN RAILROAD

1.0 MI S JCT US 52, Ogle, IL

Built 2012 Load: 43.1 t ADT: 1,900

CO HWY 3

Fair

Over: REESE CRK OVERFLOW

1 MI E OF US 51, Perry, IL

Built 1987 Load: 43.1 t ADT: 400

I-72

Fair

Over: STREAM

.5 MI W OF CISCO, Piatt, IL

Built 1976 Load: 43.1 t ADT: 11,400

TR 140

Fair

Over: POST CK TRIB

3 MI E GRAND CHAIN, Pulaski, IL

Built 1986 Load: 43.1 t ADT: 10

FAP-599 (IL-92)

Fair

Over: Coal Creek

1.5 MI W ANDALUSIA, Rock Island, IL

Built 1940 Load: 43.1 t ADT: 2,650

IL 29 (NB)

Fair

Over: SUGAR CREEK

.7M SE I-55 INTCHG, Sangamon, IL

Built 1928 Load: 43.1 t ADT: 16,700

IL 97 / JEFFERSON

Fair

Over: SPRING CREEK

.08M E IL4/VET. PKWY, Sangamon, IL

Built 1982 Load: 43.1 t ADT: 13,600

IL 29 (WALNUT ST R

Fair

Over: SANGAMON RIVER

2.6M N IL 4/VETERANS, Sangamon, IL

Built 1997 Load: 43.1 t ADT: 6,950

ILL RT 75

Fair

Over: ROCK RUN CREEK

1.3 MI E ROCK CITY, Stephenson, IL

Built 2011 Load: 43.1 t ADT: 3,300

FAP 655-VFW Road

Fair

Over: drainage ditch

1.5 Mi. E. of Ill 29, Tazewell, IL

Built 2014 Load: 43.1 t ADT: 5,300

FAS 1511

Fair

Over: N FORK VERMILION RIV

2 MI N OF DANVILLE, Vermilion, IL

Built 1998 Load: 43.1 t ADT: 1,750

NB US 67

Fair

Over: CEDAR CREEK

4 MI N OF ROSEVILLE, Warren, IL

Built 1995 Load: 43.1 t ADT: 4,000

CH 22

Fair

Over: NORTH CREEK

2 MI WEST HUEGELY, Washington, IL

Built 1916 Load: 43.1 t ADT: 525

US RT 30

Fair

Over: ELKHORN CREEK

.58 MI W OF COMO RD, Whiteside, IL

Built 1940 Load: 43.1 t ADT: 5,300

IL 84

Fair

Over: CATTAIL CREEK

0.9 MI S JCT US 30, Whiteside, IL

Built 2008 Load: 43.1 t ADT: 3,950

US 45

Fair

Over: N BR PRAIRIE CR

4.7 M S OF US 30, Will, IL

Built 1978 Load: 43.1 t ADT: 5,900

IL 50 (GOVERNORS)

Fair

Over: ROCK CREEK (N XING)

0.3 M S PAULING RD, Will, IL

Built 1995 Load: 43.1 t ADT: 5,700

FAS 943

Fair

Over: JIM BRANCH

0.1 MI E DISWOOD, Alexander, IL

Built 1993 Load: 43.4 t ADT: 1,100

TISKILWA SPUR

Fair

Over: BUREAU CREEK

0.3 MI N TISKILWA, Bureau, IL

Built 1933 Load: 43.4 t ADT: 1,100

US 6/34 FAS 1248

Fair

Over: BIG BUREAU CREEK

1.8 M W Main St Princeton, Bureau, IL

Built 1991 Load: 43.4 t ADT: 3,250

FAS 188A/CH 8

Fair

Over: POND CREEK

S EDGE OF WYANET, Bureau, IL

Built 1931 Load: 43.4 t ADT: 1,000

ARGO FAY ROAD

Fair

Over: UNNAMED STREAM

2.5 MI. E. THOMSON, Carroll, IL

Built 1994 Load: 43.4 t ADT: 1,950

DUNCAN RD(FAU 7155

Fair

Over: PHINNEY BRANCH

S. of StonyBrook Dr., Champaign, IL

Built 1969 Load: 43.4 t ADT: 7,500

OLD US 50

Fair

Over: BEAVER CREEK

1.2MI W BECKEMEYER, Clinton, IL

Built 1988 Load: 43.4 t ADT: 5,900

26TH ST

Fair

Over: DES PLAINES RIVER

1.3 M W IL 43, Cook, IL

Built 1929 Load: 43.4 t ADT: 13,000

I-294 SB

Fair

Over: DES PLAINES RIV

0.6 M S ILL 62 P11, Cook, IL

Built 1958 Load: 43.4 t ADT: 82,250

FAP-781 (ILL-33)

Fair

Over: BIG CREEK

NE CL STOY, Crawford, IL

Built 1997 Load: 43.4 t ADT: 5,400

US 51 (NB)(FAP 322

Fair

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 10 (FAP 721)

Fair

Over: SALT CREEK

4 MI E OF CLINTON, De Witt, IL

Built 2008 Load: 43.4 t ADT: 1,450

FAS 1751(US-40)

Fair

Over: HURRICANE CK BRANCH

2.4 MI E BOND CO LN, Fayette, IL

Built 1943 Load: 43.4 t ADT: 1,400

TR 41 BRENTON

Fair

Over: STREAM

1560E 2100N, Ford, IL

Built 1972 Load: 43.4 t ADT: 25

ILL 97

Fair

Over: TRIB BIG CREEK

3.5 MI S OF CUBA, Fulton, IL

Built 1928 Load: 43.4 t ADT: 1,450

ILL 97

Fair

Over: LOST GROVE CREEK

3.2 MI S OF FAIRVIEW, Fulton, IL

Built 1990 Load: 43.4 t ADT: 1,300

REED ROAD TR-107B

Fair

Over: MAZON RIVER

.33 MI W GORMAN RD, Grundy, IL

Built 1981 Load: 43.4 t ADT: 275

ILL 94

Fair

Over: FALL CREEK

4.3 MI N JCT 94&164, Henderson, IL

Built 1991 Load: 43.4 t ADT: 275

IL 78

Fair

Over: SPECIAL DITCH

0.3 MI. N. HOOPPOLE, Henry, IL

Built 1993 Load: 43.4 t ADT: 1,200

TR 283A

Fair

Over: LOUIS CREEK

2N BUCKLEY OFF US45E, Iroquois, IL

Built 1983 Load: 43.4 t ADT: 25

FAS-826

Fair

Over: SNOW CREEK

3 MI N WOODLAWN, Jefferson, IL

Built 1976 Load: 43.4 t ADT: 2,000

FAS-826

Fair

Over: BIG MUDDY RIVER

3.5 MI N WOODLAWN, Jefferson, IL

Built 1976 Load: 43.4 t ADT: 2,000

GALENA BLVD

Fair

Over: BLACKBERRY CREEK

1.25 M E OF IL 56, Kane, IL

Built 1995 Load: 43.4 t ADT: 14,400

I-55 NB

Fair

Over: ICRR & KICKAPOO OVFL

2.1 M E I-55/155INT, Logan, IL

Built 1974 Load: 43.4 t ADT: 10,750

I-55 SB

Fair

Over: ICRR & KICKAPOO OVFL

2.1 M E I-55/155INT, Logan, IL

Built 1974 Load: 43.4 t ADT: 10,750

IL 3

Fair

Over: NSRR

0.6MI N OF IL 143, Madison, IL

Built 1947 Load: 43.4 t ADT: 9,950

US 51 (FAP 322)

Fair

Over: South TURKEY CREEK

N CENTRAL CITY, Marion, IL

Built 1982 Load: 43.4 t ADT: 4,050

ILL 117

Fair

Over: NORTH CROW CREEK

2.5 MI S OF ILL 17, Marshall, IL

Built 1981 Load: 43.4 t ADT: 800

US 67

Fair

Over: TROUBLESOME CREEK

1.7 MI S OF US 136, McDonough, IL

Built 1923 Load: 43.4 t ADT: 2,400

FAS-481 (CH-32)

Fair

Over: Br Sugar Creek

1.5 MI NW SHIRLEY, McLean, IL

Built 1990 Load: 43.4 t ADT: 900

FAS 472 CH 12

Fair

Over: SIX MILE CREEK

2.0 MI W HUDSON, McLean, IL

Built 1983 Load: 43.4 t ADT: 775

IL 2

Fair

Over: DRAINAGE DITCH

2 MI N GRAND DETOUR, Ogle, IL

Built 1984 Load: 43.4 t ADT: 3,350

Showing 12,601-12,650 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.