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

CICERO AVE

Poor

Over: SANITARY SHIP CANAL

4000 S & 4800 W, Cook, IL

Built 1927 Load: 28.8 t ADT: 50,400

ROOSEVELT RD

Poor

Over: S BR CHICAGO RIVER

230 W. ROOSEVELT RD., Cook, IL

Built 1928 Load: 28.8 t ADT: 26,800

HARTMAN ROAD

Poor

Over: UNION DRAINAGE DITCH

2070N 1650E, DeKalb, IL

Built 1971 Load: 28.8 t ADT: 100

SHABBONA GROVE ROA

Poor

Over: INDIAN CREEK

680N 200E, DeKalb, IL

Built 1976 Load: 28.8 t ADT: 75

FAU5336 (LUCINDA A

Poor

Over: SO BR KISHWAUKEE RIV

0.7 E. Annie Glidden, DeKalb, IL

Built 1954 Load: 28.8 t ADT: 2,650

TR-136A

Poor

Over: INDIAN CREEK

2 MI N BROWNS, Edwards, IL

Built 1977 Load: 28.8 t ADT: 50

TR 77

Poor

Over: CLAYPOOL DITCH

0.50 MI.E. GORMAN RD, Grundy, IL

Built 2001 Load: 28.8 t ADT: 250

FAY'S LANE

Poor

Over: WELCH CREEK TRIB

.4M E OF DUGAN RD, Kane, IL

Built 1975 Load: 28.8 t ADT: 500

TR 123

Poor

Over: LITTLE INDIAN CREEK

N 41ST E 2110, LaSalle, IL

Built 1962 Load: 28.8 t ADT: 175

TR 535

Poor

Over: PRAIRIE CREEK

N 14TH E 1975, LaSalle, IL

Built 1974 Load: 28.8 t ADT: 275

DELAWARE ST/MS1290

Poor

Over: GOOSE CREEK

W OF CHICAGO ST, Livingston, IL

Built 1996 Load: 28.8 t ADT: 200

TR-56

Poor

Over: Lake Fork Creek Trib

1 W 1 MI S ELKHART, Logan, IL

Built 1958 Load: 28.8 t ADT: 100

ILL 17

Poor

Over: ILL RIVER

9.55 MI W OF ILL 89, Marshall, IL

Built 1939 Load: 28.8 t ADT: 7,000

TWP RD 104

Poor

Over: MASSAC CK

4.5 MI EAST RD KNOB, Massac, IL

Built 1977 Load: 28.8 t ADT: 25

BRUSH GROVE RD.

Poor

Over: DRAINAGE DITCH

3.5 S.W. ROCHELLE, Ogle, IL

Built 1962 Load: 28.8 t ADT: 275

BIG MOUND ROAD

Poor

Over: KILBUCK CREEK

2.5 M NW LINDENWOOD, Ogle, IL

Built 1981 Load: 28.8 t ADT: 500

HONEY CREEK ROAD

Poor

Over: KYTE CREEK

1.7 M E OF DAYSVILLE, Ogle, IL

Built 1983 Load: 28.8 t ADT: 150

FAS 603

Poor

Over: BAY CREEK

.75 MI W NEBO, Pike, IL

Built 1963 Load: 28.8 t ADT: 725

ILL 9

Poor

Over: DILLON CREEK

1 MI W OF TREMONT, Tazewell, IL

Built 1962 Load: 28.8 t ADT: 5,200

TAZEWELL RD - TR 3

Poor

Over: LITTLE MACKINAW RIVE

SE-4-T23NR2W, Tazewell, IL

Built 1946 Load: 28.8 t ADT: 10

CHRISTMAS TREE-TR1

Poor

Over: STREAM

SW-2-T23NR5W, Tazewell, IL

Built 1978 Load: 28.8 t ADT: 125

ROSS LN(FAU 7011)

Poor

Over: GRAPE CREEK

CITY OF TILTON, Vermilion, IL

Built 1976 Load: 28.8 t ADT: 2,100

FAS 496(CH 14)

Poor

Over: TRIB MIDDLE BRANCH

1.8 MI E ROSSVILLE, Vermilion, IL

Built 1984 Load: 28.8 t ADT: 400

SPRING VALLEY RD

Poor

Over: LITTLE ROCK CREEK

6 MI NORTH MORRISON, Whiteside, IL

Built 1938 Load: 28.8 t ADT: 100

CHASE ROAD

Poor

Over: CATTAIL CREEK

1 MI SE FULTON, Whiteside, IL

Built 1979 Load: 28.8 t ADT: 1,200

SAUNDERS RD

Poor

Over: UNNAMED CREEK

3.5 MI E OF PECATONI, Winnebago, IL

Built 1957 Load: 28.8 t ADT: 800

TR 77

Poor

Over: DONICA CREEK

6 MI SE OF OAKLAND, Coles, IL

Built 2000 Load: 29.2 t ADT: 25

TOUHY AVE

Poor

Over: N BR CHICAGO RIVER

0.6 M E IL 43, Cook, IL

Built 1925 Load: 29.2 t ADT: 24,400

18TH ST

Poor

Over: RR TRACKS

1800S.& 300W.TO 200W, Cook, IL

Built 1967 Load: 29.2 t ADT: 5,650

SB 41 TO RANDOLPH

Poor

Over: LAND

500E & 150N., Cook, IL

Built 1986 Load: 29.2 t ADT: 1,200

TR-310

Poor

Over: CREEK

3.5 MI SE PALESTINE, Crawford, IL

Built 1909 Load: 29.2 t ADT: 75

MS-1090 (Webster S

Poor

Over: Ten Mile Creek

CLINTON-WEBSTER ST., De Witt, IL

Built 1970 Load: 29.2 t ADT: 150

TR-357

Poor

Over: TRIB HICKORY CREEK

3 MI SE ST ELMO, Fayette, IL

Built 1925 Load: 29.2 t ADT: 50

TR-61 SOUTHMOR RD

Poor

Over: WAUPECAN CREEK

0.10 MI W SCOUT RD, Grundy, IL

Built 1980 Load: 29.2 t ADT: 125

TR 120 OLD MAZON R

Poor

Over: JOHNNY RUN CREEK

.5 MI S REED RD, Grundy, IL

Built 1982 Load: 29.2 t ADT: 50

CO. HWY. 12

Poor

Over: PETIT CREEK

7 MI S OF WARSAW, Hancock, IL

Built 1979 Load: 29.2 t ADT: 350

TR 126

Poor

Over: LITTLE MUD CR

3 MI N CISSNA PK, Iroquois, IL

Built 1970 Load: 29.2 t ADT: 50

TR 442

Poor

Over: TRIB TO IROQUOIS RV

2.5 MI SE OF IROQUOI, Iroquois, IL

Built 1952 Load: 29.2 t ADT: 75

FAP-849 (ILL-142)

Poor

Over: DODDS CREEK

1.5 MI NW OPDYKE, Jefferson, IL

Built 1928 Load: 29.2 t ADT: 3,650

NEW YORK STREET

Poor

Over: FOX RIVER

STOLP ISLAND, Kane, IL

Built 1931 Load: 29.2 t ADT: 9,850

CH 12

Poor

Over: HORSE CR

3 MI N HERSCHER, Kankakee, IL

Built 1979 Load: 29.2 t ADT: 1,850

TR 322

Poor

Over: COUEL CREEK

E 19TH N 2275, LaSalle, IL

Built 1973 Load: 29.2 t ADT: 50

BOLLMAN RD

Poor

Over: THREE MILE BRANCH

0.9 MI S ROCK ISLAND, Lee, IL

Built 1901 Load: 29.2 t ADT: 25

CH 30(FAU 7403)

Poor

Over: SAND CREEK TRIB

1.5 MI E OF ELWIN, Macon, IL

Built 1986 Load: 29.2 t ADT: 4,550

TR 130

Poor

Over: LICK CRK

3.5 MI SE HETTICK, Macoupin, IL

Built 1960 Load: 29.2 t ADT: 50

ROOT ROAD

Poor

Over: RUSH CREEK

0.1 MI N OF CH 30, McHenry, IL

Built 1900 Load: 29.2 t ADT: 100

FAU 8173 College A

Poor

Over: MAUVAISE TERRE CR

.25 MI E JOHNSON, Morgan, IL

Built 1975 Load: 29.2 t ADT: 1,900

S MAIN ST

Poor

Over: TOWN BROOK

S MAIN ST AT BROOK, Morgan, IL

Built 1985 Load: 29.2 t ADT: 8,000

TR 62(N. MAIN ST)

Poor

Over: LONG GROVE CREEK

.5 MI N OF MOWEAQUA, Shelby, IL

Built 1953 Load: 29.2 t ADT: 1,350

WINKEL RD - CH 10

Poor

Over: MAIN DRAINAGE DITCH

SE COR-15-T22NR5W, Tazewell, IL

Built 1955 Load: 29.2 t ADT: 100

Showing 26,901-26,950 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.