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

IL 26/FAS 2370

Fair

Over: CLEAR CREEK (OVRFLW)

8.20 MI S OF IL 71, Putnam, IL

Built 2001 Load: 37.6 t ADT: 800

FAS 863

Fair

Over: MILL CREEK

863 OVER MILL CREEK, Randolph, IL

Built 1960 Load: 37.6 t ADT: 225

AIRPORT ROAD

Fair

Over: MILL CREEK

0.5 MI. E. US 67, Rock Island, IL

Built 2003 Load: 37.6 t ADT: 10,100

FAS 624A (CH 40)

Fair

Over: BRANCH HORSE CREEK

.19 mi W TR 424, Sangamon, IL

Built 1957 Load: 37.6 t ADT: 900

TR 231

Fair

Over: HORNEY BRANCH

3.0 W OF RUSHVILLE, Schuyler, IL

Built 1916 Load: 37.6 t ADT: 150

FAP 316-IL 26

Fair

Over: BRUSH CREEK

1.7 MI S ORANGEVILLE, Stephenson, IL

Built 1991 Load: 37.6 t ADT: 4,600

ILL 73

Fair

Over: CEDAR CREEK

S EDGE OF WINSLOW, Stephenson, IL

Built 1990 Load: 37.6 t ADT: 1,250

FAS 509(CH 23)

Fair

Over: FAYETTE CREEK

2 MI NE INDIANOLA, Vermilion, IL

Built 1975 Load: 37.6 t ADT: 900

FAI-64 EB

Fair

Over: SKILLET FORK

7 MI E ILL-242 INT, Wayne, IL

Built 1974 Load: 37.6 t ADT: 5,500

I 64 EB

Fair

Over: TRIB RANDOLPH DITCH

11.5 MI W ILL-1, White, IL

Built 1972 Load: 37.6 t ADT: 6,100

I 64 WB

Fair

Over: TRIB RANDOLPH DITCH

11.5 MI W ILL-1, White, IL

Built 1972 Load: 37.6 t ADT: 6,100

ROCKTON RD

Fair

Over: ROCKTN DAM MILL RACE

W. EDGE OF ROCKTON, Winnebago, IL

Built 1990 Load: 37.6 t ADT: 2,200

SWANSON RD

Fair

Over: UNNAMED STREAM

1.2 MI. E. IL 251, Winnebago, IL

Built 1977 Load: 37.6 t ADT: 3,450

CH 11

Fair

Over: LIERLE BRANCH

4.6 MI N OF LIBERTY, Adams, IL

Built 1983 Load: 37.9 t ADT: 675

TR 93

Fair

Over: PIGEON ROOST CREEK

1.5M NW OLIVE BRANCH, Alexander, IL

Built 1991 Load: 37.9 t ADT: 225

TR 98

Fair

Over: LAKE CREEK

5 MI S OLIVE BRANCH, Alexander, IL

Built 1996 Load: 37.9 t ADT: 25

FAS 1246/CH 24

Fair

Over: BIG BUREAU CREEK

1 MI NW TISKILWA, Bureau, IL

Built 1989 Load: 37.9 t ADT: 250

ILL 84

Fair

Over: DRAINAGE DITCH

2 MI N SAVANNA, Carroll, IL

Built 1929 Load: 37.9 t ADT: 1,500

ILL 73

Fair

Over: STRADDLE CREEK

0.2 MI N OF LANARK, Carroll, IL

Built 1989 Load: 37.9 t ADT: 3,350

US 45(FAP 800)

Fair

Over: DITCH

S EDGE THOMASBORO, Champaign, IL

Built 1955 Load: 37.9 t ADT: 8,500

FOX DR(MS 8558)

Fair

Over: DRAINAGE DITCH

0.15 MI N of Windsor, Champaign, IL

Built 1997 Load: 37.9 t ADT: 1,250

FAS 668(CH 2)

Fair

Over: DRY BRANCH

E OF BUSHTON, Coles, IL

Built 1933 Load: 37.9 t ADT: 300

IL 121 (FAP 320)

Fair

Over: WHITLEY CREEK

1.5 MI SE COLES, Coles, IL

Built 1978 Load: 37.9 t ADT: 4,100

I- 57

Fair

Over: BUTTERFIELD CREEK

0.04 M N of V Common, Cook, IL

Built 1967 Load: 37.9 t ADT: 79,300

IL 171 NB ELEVATED

Fair

Over: STA 53&15 TO 63&18

0.5 M SE JOLIET RD, Cook, IL

Built 1964 Load: 37.9 t ADT: 40,100

PULASKI RD SB

Fair

Over: RR - BRC

0.2 M S 71ST ST, Cook, IL

Built 1988 Load: 37.9 t ADT: 31,000

RIDGELAND AVE

Fair

Over: BUTTERFIELD CREEK

0.25 M N US 30 P21, Cook, IL

Built 1957 Load: 37.9 t ADT: 6,750

S LAKE SHORE DRIVE

Fair

Over: JACKSON PK LAGOON IN

5900 S & 1900 E, Cook, IL

Built 1891 Load: 37.9 t ADT: 36,700

IL 72 FAP 553

Fair

Over: LEE SLOUGH

1.5 MI W KINGSTON, DeKalb, IL

Built 1987 Load: 37.9 t ADT: 2,300

IL 72 FAP 553

Fair

Over: DRAINAGE DITCH

3 MI NW OF KIRKLAND, DeKalb, IL

Built 1990 Load: 37.9 t ADT: 2,150

US 34

Fair

Over: W BR DUPAGE RIVER

5.3 M W OF IL 53, DuPage, IL

Built 1933 Load: 37.9 t ADT: 27,500

US 150(FAP 91)

Fair

Over: SUGAR CREEK

1.0 MI E OF PARIS, Edgar, IL

Built 1966 Load: 37.9 t ADT: 3,250

FAI-70 EB

Fair

Over: HURRICANE CK OVFL 2

2.7 MI E BOND CO LN, Fayette, IL

Built 1965 Load: 37.9 t ADT: 12,900

FAI-70 WB

Fair

Over: HURRICANE CK OVFL 2

2.7 MI E BOND CO LN, Fayette, IL

Built 1965 Load: 37.9 t ADT: 12,900

FAP-752 (US-40)

Fair

Over: CAMP CREEK OVERFLOW

1.4 MI E US-51, Fayette, IL

Built 1988 Load: 37.9 t ADT: 3,950

ILL 9

Fair

Over: DRAINAGE DITCH

.91 M E OF ELLIOT RD, Ford, IL

Built 1987 Load: 37.9 t ADT: 1,700

US 24

Fair

Over: N F VERMILION

0.47 MI E ILL 115, Ford, IL

Built 1987 Load: 37.9 t ADT: 2,200

ILL 9

Fair

Over: PUTT CREEK

4 MI W OF CANTON, Fulton, IL

Built 1987 Load: 37.9 t ADT: 2,250

Hillview Eldred Rd

Fair

Over: HURRICANE CREEK

0.2 M S JCT 108, Greene, IL

Built 1946 Load: 37.9 t ADT: 625

GORMAN RD CH 10

Fair

Over: MAZON RIVER

0.04 MI N TR 109B, Grundy, IL

Built 1987 Load: 37.9 t ADT: 300

FAP-776 (ILL-142)

Fair

Over: BR LAKEY CREEK

3.7 MI S ILL-14, Hamilton, IL

Built 1984 Load: 37.9 t ADT: 2,400

ILL 1/FAP 332A

Fair

Over: SUGAR CREEK

2.73 M S OF US 24, Iroquois, IL

Built 1992 Load: 37.9 t ADT: 2,300

TR-77

Fair

Over: CROOKED CREEK

1.2 MI WSW YALE, Jasper, IL

Built 1909 Load: 37.9 t ADT: 25

FAP-849 (ILL-142)

Fair

Over: CASEY FORK

.9 MI S MT VERNON, Jefferson, IL

Built 1930 Load: 37.9 t ADT: 4,900

I 64 WB

Fair

Over: CASEY FORK OVERFLOW

.6 MI E ILL-37 INT, Jefferson, IL

Built 1972 Load: 37.9 t ADT: 6,350

I 64 EB

Fair

Over: CASEY FORK OVERFLOW

.6 MI E ILL-37 INT, Jefferson, IL

Built 1972 Load: 37.9 t ADT: 6,350

FAS-789 (CH-3)

Fair

Over: PUNCHEON CREEK

2 MI S HARMONY, Jefferson, IL

Built 1984 Load: 37.9 t ADT: 1,000

FAS-819 (CH-16)

Fair

Over: HORSE CREEK

2.5 MI N HARMONY, Jefferson, IL

Built 1994 Load: 37.9 t ADT: 500

ILL 114

Fair

Over: PIKE CREEK

1.7 M E OF ILL 1&17, Kankakee, IL

Built 2004 Load: 37.9 t ADT: 2,800

US 52

Fair

Over: LISBON CREEK

1.09 MI W ILL 47, Kendall, IL

Built 1936 Load: 37.9 t ADT: 1,150

Showing 11,501-11,550 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.