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

US 45(FAS 1671)

Good

Over: CRABAPPLE CREEK

5 MI N MATTOON, Coles, IL

Built 1986 Load: 33.4 t ADT: 2,900

FAS 668(CH 16)

Good

Over: STREAM

.5 MI E FAIRGRANGE, Coles, IL

Built 1996 Load: 33.4 t ADT: 450

KEDZIE AVE

Good

Over: N LAG MARQUETTE PARK

3.5 M N US 12,20, Cook, IL

Built 1933 Load: 33.4 t ADT: 16,700

KEDZIE AVE

Good

Over: S LAG MARQUETTE PARK

3.2 M N US 12,20, Cook, IL

Built 1933 Load: 33.4 t ADT: 16,700

US14 NW HWY

Good

Over: WELLER CREEK

.25 E OF SEEGER RD, Cook, IL

Built 1968 Load: 33.4 t ADT: 10,900

SB IL394 RAMP

Good

Over: THORN CREEK

SB 394 TO WB 294/I80, Cook, IL

Built 2007 Load: 33.4 t ADT: 10,700

I-294 SB

Good

Over: FLAG CR NORTH

0.9 M S US 34 P10, Cook, IL

Built 1958 Load: 33.4 t ADT: 86,900

US 51 (NB)(FAP 322

Good

Over: LONG POINT CREEK

2 MI N OF WAPELLA, De Witt, IL

Built 1986 Load: 33.4 t ADT: 9,650

US 51(FAP 322)

Good

Over: STREAM

0.5 MI N OF WAPELLA, De Witt, IL

Built 1986 Load: 33.4 t ADT: 9,650

SUYDAM RD

Good

Over: INDIAN CREEK

7.0 MI S SHABBONA, DeKalb, IL

Built 2021 Load: 33.4 t ADT: 425

FAP 749(IL 133)

Good

Over: STREAM

W OF HINDSBORO, Douglas, IL

Built 1990 Load: 33.4 t ADT: 2,450

TR 84 A

Good

Over: STREAM

1 MI SW OF ARCOLA, Douglas, IL

Built 1900 Load: 33.4 t ADT: 50

IL 38

Good

Over: W BR DUPAGE RIVER

0.1 M E OF IL 59, DuPage, IL

Built 1933 Load: 33.4 t ADT: 18,700

CH-13 PUMPING STA

Good

Over: FIRST SALT CREEK

2MI W MONTROSE, Effingham, IL

Built 1984 Load: 33.4 t ADT: 275

FAS709(CH19)

Good

Over: LITTLE BISHOP CR

1 MI S ELLIOTTSTOWN, Effingham, IL

Built 1999 Load: 33.4 t ADT: 575

TR 157

Good

Over: BRANCH JORDAN CREEK

3.5M NE OF BENTON, Franklin, IL

Built 1941 Load: 33.4 t ADT: 25

TR 97FARMER RD

Good

Over: HOG RUN

.21 MI W-BENNIT RD, Grundy, IL

Built 1994 Load: 33.4 t ADT: 75

TR 111A MINE ROAD

Good

Over: JOHNNY RUN CREEK

.28 MI W DWIGHT ROAD, Grundy, IL

Built 1982 Load: 33.4 t ADT: 75

FAP-853 (ILL-14)

Good

Over: TEN MILE CREEK

6.4 MI E FRANK CO LN, Hamilton, IL

Built 1979 Load: 33.4 t ADT: 2,200

TR 164

Good

Over: CAMP CREEK

.5 M N COLUSA, Hancock, IL

Built 2009 Load: 33.4 t ADT: 125

IL 78

Good

Over: WILDCAT CREEK

1.3 MI S HOOPOLE RD, Henry, IL

Built 1981 Load: 33.4 t ADT: 1,300

FAS 323,CH 40

Good

Over: COON CR

2.19 MI W OF IL 1, Iroquois, IL

Built 1991 Load: 33.4 t ADT: 650

WOOD ROAD TR 278

Good

Over: CREEK

WEST LINE SECT18-9-1, Jackson, IL

Built 1983 Load: 33.4 t ADT: 250

TR 31

Good

Over: SIX MILE CREEK

1 MI E OF DOWELL, Jackson, IL

Built 1989 Load: 33.4 t ADT: 50

FAU-8715(OLD-15)

Good

Over: SEVEN MILE CREEK

1 MI E MT VERNON, Jefferson, IL

Built 1986 Load: 33.4 t ADT: 2,850

CH-5

Good

Over: GUN CREEK

2 MI E SPRING GARDEN, Jefferson, IL

Built 1998 Load: 33.4 t ADT: 650

ILL 16

Good

Over: PHILS CREEK

7.0 M W JCT ILL 111, Jersey, IL

Built 1978 Load: 33.4 t ADT: 3,100

US ROUTE 30

Good

Over: UP RR

1.2 MI E I-88, Lee, IL

Built 1939 Load: 33.4 t ADT: 2,950

IL 251

Good

Over: DRAINAGE DITCH

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

Built 1995 Load: 33.4 t ADT: 1,100

FAS-1356 (CH-24)

Good

Over: Vermilion River

0.5 MI E OF MCDOWELL, Livingston, IL

Built 1967 Load: 33.4 t ADT: 250

CH-16 (FAS-355)

Good

Over: MOON CREEK

2 MI NORTH ANCONA, Livingston, IL

Built 1985 Load: 33.4 t ADT: 850

TR 41A

Good

Over: PRAIRIE CREEK

205E, 2800N, Livingston, IL

Built 2004 Load: 33.4 t ADT: 150

TR-70

Good

Over: DEER CREEK

0.25 MI E PATOKA, Marion, IL

Built 1978 Load: 33.4 t ADT: 25

TR-214

Good

Over: NORTH FORK CREEK

5.5 MI E VERNON, Marion, IL

Built 1982 Load: 33.4 t ADT: 150

CH-19

Good

Over: SOUTH CREEK

0.5 MI NE CARTTER, Marion, IL

Built 1993 Load: 33.4 t ADT: 325

IL 173

Good

Over: MOKELLER CREEK

0.08 M W OF US 14, McHenry, IL

Built 1993 Load: 33.4 t ADT: 5,500

LAKE STREET

Good

Over: MOT HOLLOW CREEK

LAKE ST.-OAKFORD, Menard, IL

Built 1990 Load: 33.4 t ADT: 100

TR 158

Good

Over: GROVE CREEK

1 MI S SWEETWATER, Menard, IL

Built 1991 Load: 33.4 t ADT: 75

FAS 614

Good

Over: INDIAN CREEK

3MI S PRENTICE, Morgan, IL

Built 1991 Load: 33.4 t ADT: 1,250

FREEPORT RD

Good

Over: BR. OF BUFFALO CREEK

4 MI. SW. OF POLO, Ogle, IL

Built 1996 Load: 33.4 t ADT: 1,750

FAP 558 (IL 100)

Good

Over: Little Blue Creek

0.8 mi S Detroit, Pike, IL

Built 2015 Load: 33.4 t ADT: 1,300

FAP 321 (US 54)

Good

Over: Miss Rvr/BNSF RR

Louisiana, Mo, Pike, IL

Built 2019 Load: 33.4 t ADT: 3,100

COUNTY HIGHWAY 44

Good

Over: COPPERAS CREEK

1.48 MI S ILL RTE 92, Rock Island, IL

Built 1985 Load: 33.4 t ADT: 325

I 74 EB

Good

Over: MISSISSIPPI RIVER

IN BETTENDORF, Rock Island, IL

Built 2021 Load: 33.4 t ADT: 39,050

OLD US 36

Good

Over: N FK CLEAR CREEK

.8M E DAWSON RD., Sangamon, IL

Built 1998 Load: 33.4 t ADT: 1,100

ILL 177

Good

Over: ASH CREEK

0.7 MI E ILL 158, St. Clair, IL

Built 1991 Load: 33.4 t ADT: 7,150

ILL 177

Good

Over: E Trib Reinhardt SL

1.8M E JCT IL 4, St. Clair, IL

Built 1994 Load: 33.4 t ADT: 2,450

IL 159

Good

Over: Trib to Richland Crk

3.2 MI N SMITHON, St. Clair, IL

Built 2001 Load: 33.4 t ADT: 8,100

FAU 9175

Good

Over: ROCK SPRING BRANCH

0.5M N US 50, St. Clair, IL

Built 1972 Load: 33.4 t ADT: 11,400

STATE STREET RD

Good

Over: CREEK

BELV S 1.5M IL 15, St. Clair, IL

Built 1999 Load: 33.4 t ADT: 1,700

Showing 22,001-22,050 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.