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-80 EB

Fair

Over: ADAMS CREEK

1.8 MI W IL 89, Bureau, IL

Built 2011 Load: 47.6 t ADT: 11,450

I-80 WB

Fair

Over: ADAMS CREEK

1.8 MI W IL 89, Bureau, IL

Built 2010 Load: 47.6 t ADT: 11,450

ILL 161

Fair

Over: LOST CREEK

1.7 E ILL 127, Clinton, IL

Built 1937 Load: 47.6 t ADT: 4,100

US 14 (MINER ST)

Fair

Over: DES PLAINES RIVER

0.7 M W I-294, Cook, IL

Built 1925 Load: 47.6 t ADT: 16,100

GREEN BAY RD

Fair

Over: N SHORE CHANNEL

0.2 M N SIMPSON, Cook, IL

Built 1936 Load: 47.6 t ADT: 10,150

US 30 (LINCOLN HWY

Fair

Over: THIRD CREEK

2 M W IL 394, Cook, IL

Built 1982 Load: 47.6 t ADT: 18,200

US 30 (LINCOLN HWY

Fair

Over: BUTTERFIELD CREEK

0.6 M E OF IL 50, Cook, IL

Built 1983 Load: 47.6 t ADT: 37,300

US 30 (LINCOLN HWY

Fair

Over: BUTTERFIELD CREEK

0.1 M W CRAWFORD AVE, Cook, IL

Built 1985 Load: 47.6 t ADT: 37,300

I-294 NB

Fair

Over: C&NW RR

0.6 M N ILL 58 P11, Cook, IL

Built 1958 Load: 47.6 t ADT: 71,350

I-294 SB

Fair

Over: C&NW RR

0.6 M N ILL 58 P11, Cook, IL

Built 1958 Load: 47.6 t ADT: 71,350

FAP 116 (IL 130)

Fair

Over: RANGE CREEK

.8 MI N JASPER CO LI, Cumberland, IL

Built 2016 Load: 47.6 t ADT: 1,900

FAP-774 (ILL-33)

Fair

Over: MORRIS CREEK

4.3 MI E BEECHER CTY, Effingham, IL

Built 1939 Load: 47.6 t ADT: 3,400

IL 96

Fair

Over: WEAVER CREEK

.75 MI W OF LOMAX, Henderson, IL

Built 1992 Load: 47.6 t ADT: 1,500

FAI 74 & 280 EB

Fair

Over: MOSQUITO CREEK

3.8 MI W JCT FAI 80, Henry, IL

Built 1961 Load: 47.6 t ADT: 7,500

FAI 80 WB

Fair

Over: MUD CREEK

0.7 MI W JCT ILL 78, Henry, IL

Built 1961 Load: 47.6 t ADT: 8,800

ATKINSON ROAD

Fair

Over: GREEN RIVER

3.5 MI. N. ATKINSON, Henry, IL

Built 2001 Load: 47.6 t ADT: 600

IL RTE 13

Fair

Over: LITTLE CRAB ORCHARD

0.19MI E NEW ERA RD, Jackson, IL

Built 2007 Load: 47.6 t ADT: 21,600

WILMOT RD

Fair

Over: W FK N BR CHGO RIVER

.3 M E 94 1.8 M S 22, Lake, IL

Built 1963 Load: 47.6 t ADT: 2,600

FAP 332 (IL 1)

Fair

Over: BRUSHY FORK CREEK

.25 N PINKSTAFF RD, Lawrence, IL

Built 2003 Load: 47.6 t ADT: 3,600

US 52 & IL 2 & IL

Fair

Over: ROCK RIVER

DIXON, Lee, IL

Built 2002 Load: 47.6 t ADT: 22,100

I 39&US 51

Fair

Over: WILLOW CREEK

0.6 MI N. CHICAGO RD, Lee, IL

Built 1983 Load: 47.6 t ADT: 18,700

I-88 EB

Fair

Over: STEWARD CR

AT OGLE CO LN, Lee, IL

Built 1974 Load: 47.6 t ADT: 8,050

ILL 121(FAP 320)

Fair

Over: STEVENS CREEK

NW EDGE OF DECATUR, Macon, IL

Built 1984 Load: 47.6 t ADT: 7,950

ILL 143

Fair

Over: MOONEY CREEK

0.5 M E JCT 157, Madison, IL

Built 1940 Load: 47.6 t ADT: 4,450

US 136 (EB)

Fair

Over: E FORK La MOINE RIVR

1.4 MI W JCT 61 136, McDonough, IL

Built 2008 Load: 47.6 t ADT: 3,400

US 136 (WB)

Fair

Over: E FORK LA MOINE RIVR

1.4 MI W JCT 61 136, McDonough, IL

Built 2008 Load: 47.6 t ADT: 3,400

I-55 SB

Fair

Over: MACKINAW RIVER

2 MI SW OF LEXINGTON, McLean, IL

Built 1973 Load: 47.6 t ADT: 11,900

I-55 NB

Fair

Over: MACKINAW RIVER

2 MI SW OF LEXINGTON, McLean, IL

Built 1973 Load: 47.6 t ADT: 11,900

I-74

Fair

Over: DRY RUN CR

0.3MI W OF NEBRASKA, Peoria, IL

Built 1965 Load: 47.6 t ADT: 21,900

MOLINE RD (OLD IL2

Fair

Over: ZUMA CREEK

5.5 MI SW HILLSDALE, Rock Island, IL

Built 1923 Load: 47.6 t ADT: 675

FAI 74 NB

Fair

Over: ROCK RIVER, SIDE RDS

S EDGE MOLINE, Rock Island, IL

Built 2002 Load: 47.6 t ADT: 15,750

I-88

Fair

Over: DRAINAGE DITCH

5. MI SW HILLSDALE, Rock Island, IL

Built 1976 Load: 47.6 t ADT: 13,500

TR 15 (9N)

Fair

Over: FANCY CREEK

1.5 SW WILLIAMSVILLE, Sangamon, IL

Built 1900 Load: 47.6 t ADT: 175

FAI 72 WB

Fair

Over: DRAINAGE DITCH

2.6MI W IL 100 INT, Scott, IL

Built 1986 Load: 47.6 t ADT: 4,950

IL 126

Fair

Over: LILY CACHE CREEK

2 M E OF IL 59, Will, IL

Built 1983 Load: 47.6 t ADT: 14,300

BELT LINE RD

Fair

Over: IL RR

0.8 MI W OF ILL 251, Winnebago, IL

Built 2010 Load: 47.6 t ADT: 1,650

IL 2 NB

Fair

Over: MUD CREEK

0.4 MI S OLD RIVR RD, Winnebago, IL

Built 2012 Load: 47.6 t ADT: 11,800

COMLY ROAD

Fair

Over: COOLIDGE CREEK

0.1 MI W KEITH ROAD, Winnebago, IL

Built 1970 Load: 47.6 t ADT: 200

HONONEGAH RD

Fair

Over: DRY CREEK

1.3 MI. W. OF IL 251, Winnebago, IL

Built 1991 Load: 47.6 t ADT: 11,400

ILL 336 NB

Fair

Over: ROCK CREEK

2MI N I172/24 INT, Adams, IL

Built 1994 Load: 48.0 t ADT: 5,800

I-57

Fair

Over: STREAM

MP 196.4, Coles, IL

Built 1968 Load: 48.0 t ADT: 22,700

IL 1 (HALSTED ST

Fair

Over: BUTTERFIELD CREEK

2.5 M N US 30, Cook, IL

Built 1974 Load: 48.0 t ADT: 17,900

FAS-1696 TRIMBLE R

Fair

Over: TRIB SUGAR CREEK

1.5 MI SW TRIMBLE, Crawford, IL

Built 1992 Load: 48.0 t ADT: 2,800

US 24

Fair

Over: BNSF RR (063690C)

1 MI E OF SCHUYLER C, Fulton, IL

Built 1954 Load: 48.0 t ADT: 1,350

NETTLE CR ROAD CH-

Fair

Over: WEST FORK NETTLE CR

0.1 MI N OF TR 13, Grundy, IL

Built 1964 Load: 48.0 t ADT: 100

IL 1/FAP 332A

Fair

Over: SUGAR CREEK TRIB

3.18 M N OF CH 10, Iroquois, IL

Built 1994 Load: 48.0 t ADT: 2,200

IL 180

Fair

Over: CADWELL CR

2 MI N WILLIAMSFIELD, Knox, IL

Built 2000 Load: 48.0 t ADT: 400

US 150

Fair

Over: HENDERSON CREEK

6.3 MI N OF US 34, Knox, IL

Built 2012 Load: 48.0 t ADT: 2,950

FAS 1195 IL 180

Fair

Over: BR BRANDYWINE CR

4.5 MI N OF US 150, Knox, IL

Built 2009 Load: 48.0 t ADT: 400

I-74 EB

Fair

Over: LITTLE KICKAPOO CR

7.6 MI E OF US 51, McLean, IL

Built 1968 Load: 48.0 t ADT: 10,800

Showing 13,101-13,150 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.