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

SO. BURTON RD-TR10

Good

Over: WOLF CREEK

1 MI SW OF ELIZABETH, Jo Daviess, IL

Built 1989 Load: 32.4 t ADT: 25

S. BRUNNER RD-TR24

Good

Over: MUDDY PLUM RIVER

7 MI. S. OF STOCKTON, Jo Daviess, IL

Built 1990 Load: 32.4 t ADT: 50

MILL CREEK RD./TR1

Good

Over: MILL CREEK TRIB.

1 MI SE SCALES MOUND, Jo Daviess, IL

Built 1993 Load: 32.4 t ADT: 50

MILL CREEK RD./TR1

Good

Over: MILL CREEK TRIB.

1.5 MI SE SCALES MND, Jo Daviess, IL

Built 1993 Load: 32.4 t ADT: 50

CRAZY HOLLOW RD

Good

Over: APPLE RIVER

1.5 MI. S. HANOVER, Jo Daviess, IL

Built 1993 Load: 32.4 t ADT: 50

SCOUT CAMP RD(FAS7

Good

Over: APPLE RIVER

6 MI S APPLE RIVER, Jo Daviess, IL

Built 1992 Load: 32.4 t ADT: 150

STAGECOACH TRAIL-C

Good

Over: KENTUCKY CREEK

W. EDGE APPLE RIVER, Jo Daviess, IL

Built 1995 Load: 32.4 t ADT: 850

S. DERINDA ROAD

Good

Over: RUSH CREEK

5 MI SE ELIZABETH, Jo Daviess, IL

Built 1995 Load: 32.4 t ADT: 350

E. MASWBACH ROAD

Good

Over: CAMP CREEK

9 MI. SE. HANOVER, Jo Daviess, IL

Built 1999 Load: 32.4 t ADT: 225

E. HANOVER ROAD

Good

Over: LITTLE RUSH CREEK

.8 MI W DERINDA RD, Jo Daviess, IL

Built 1999 Load: 32.4 t ADT: 100

TR 193-A

Good

Over: LITTLE RUSH CREEK

4 MI SE OF ELIZABETH, Jo Daviess, IL

Built 1998 Load: 32.4 t ADT: 50

MAMMOSER RD (TR 27

Good

Over: TRB S FK APPLE RIVER

1.5 MI SW OF NORA, Jo Daviess, IL

Built 2000 Load: 32.4 t ADT: 25

HICKS ROAD

Good

Over: WOLF CREEK

.25 MI. W. OF IL78, Jo Daviess, IL

Built 1999 Load: 32.4 t ADT: 50

COGAN LANE (TR 88)

Good

Over: TRIB SMALL POX CREEK

6 MI E OF GALENA, Jo Daviess, IL

Built 2000 Load: 32.4 t ADT: 100

KUPPERSMITH RD

Good

Over: TRIB OF MUD RUN

4.4MI NW STOCKTON, Jo Daviess, IL

Built 2004 Load: 32.4 t ADT: 75

GREENVALE ROAD

Good

Over: MUD RUN CREEK

3 M. N OF STOCKTON, Jo Daviess, IL

Built 2007 Load: 32.4 t ADT: 50

S.PLEASANT HILL RD

Good

Over: TRIB TO WOLF CREEK

1 MI S OF ELIZABETH, Jo Daviess, IL

Built 2002 Load: 32.4 t ADT: 225

N. VETA GRANDE RD

Good

Over: CN RR

.5 MI NW SCALES MD., Jo Daviess, IL

Built 2011 Load: 32.4 t ADT: 100

TOWNSHIP RD NO 258

Good

Over: MUDDY PLUM RIV

7 MI SO STOCKTON, Jo Daviess, IL

Built 2005 Load: 32.4 t ADT: 50

RAWLINS RD

Good

Over: BR. SMALLPOX CR

7.3 MI E GALENA, Jo Daviess, IL

Built 2005 Load: 32.4 t ADT: 900

RTE 5 WEST

Good

Over: TRIB MENOMINEE RVR

1MI NW OF MENOMINEE, Jo Daviess, IL

Built 2006 Load: 32.4 t ADT: 700

TOWNSHIP ROAD NO.

Good

Over: IRISH HOLLOW CREEK

4 MI W OF ELIZABETH, Jo Daviess, IL

Built 2007 Load: 32.4 t ADT: 75

E STAGECOACH ROAD

Good

Over: W FORK APPLE RIVER

3 MI SW APPLE RIVER, Jo Daviess, IL

Built 2011 Load: 32.4 t ADT: 575

Scout Camp Road

Good

Over: Apple River

1.5MI S of Apple Riv, Jo Daviess, IL

Built 2012 Load: 32.4 t ADT: 225

E. TWIN BRIDGES RD

Good

Over: CLEAR CREEK

1.5MI SW WARREN, Jo Daviess, IL

Built 2008 Load: 32.4 t ADT: 75

E TWIN BRIDGES ROA

Good

Over: CLEAR CREEK

1.5 M SW WARREN, Jo Daviess, IL

Built 2008 Load: 32.4 t ADT: 75

S SCOUT CAMP ROAD

Good

Over: BRANCH OF APPLE RIVE

5 MILES NE ELIZABETH, Jo Daviess, IL

Built 2012 Load: 32.4 t ADT: 150

EAST BETHEL ROAD

Good

Over: LITTLE RUSH CREEK

3 M EAST ELIZABETH, Jo Daviess, IL

Built 2012 Load: 32.4 t ADT: 250

State Line Road

Good

Over: West Fork Apple River

2.5 M NE SCALES MD, Jo Daviess, IL

Built 2011 Load: 32.4 t ADT: 50

LONG HOLLOW RD

Good

Over: FURNACE CREEK

5.5MI NW ELIZABETH, Jo Daviess, IL

Built 2016 Load: 32.4 t ADT: 450

E CAHILL ROAD

Good

Over: N FORK PLUM RIVER

5 MI SW STOCKTON, Jo Daviess, IL

Built 2012 Load: 32.4 t ADT: 50

S BETHEL RD

Good

Over: PLUM RIVER

7 MI S OF STOCKTON, Jo Daviess, IL

Built 2014 Load: 32.4 t ADT: 100

BRODRECHT RD

Good

Over: BR FURNACE CREEK

5.7 MI NW ELIZABETH, Jo Daviess, IL

Built 2016 Load: 32.4 t ADT: 500

FAS-67 E Stagecoac

Good

Over: BR CLEAR CREEK

1.75 MI E APPLE RIVE, Jo Daviess, IL

Built 2018 Load: 32.4 t ADT: 850

TR 77 (E. Rush Tow

Good

Over: MUD RUN CRK

5 MI SW OF NORA, Jo Daviess, IL

Built 2019 Load: 32.4 t ADT: 25

TR 35

Good

Over: LITTLE SALINE R.

NW1/4 SEC15 T11S,R4E, Johnson, IL

Built 1978 Load: 32.4 t ADT: 75

TR 142

Good

Over: TRIB TO JOHNSON CR

NE1/4 SEC 5 T13S,R4E, Johnson, IL

Built 1980 Load: 32.4 t ADT: 200

TR 153

Good

Over: DUTCHMAN CREEK

SW1/4 SEC 6 T13S R3E, Johnson, IL

Built 1981 Load: 32.4 t ADT: 200

TR 13

Good

Over: LITTLE SALINE CREEK

SE1/4 SEC 9 T11S,R2E, Johnson, IL

Built 1982 Load: 32.4 t ADT: 50

TR 131

Good

Over: MAX CREEK

NW1/4 SEC28 T12S,R4E, Johnson, IL

Built 1982 Load: 32.4 t ADT: 75

TR 182

Good

Over: LITTLE SALINE RIVER

E 1/2 SEC22 T11S,R4E, Johnson, IL

Built 1981 Load: 32.4 t ADT: 50

TR138

Good

Over: JOHNSON CREEK

NW1/4 SEC 7 T13S,R4E, Johnson, IL

Built 1982 Load: 32.4 t ADT: 100

TR 186

Good

Over: BAY CREEK

NW1/4 SEC26 T12S.R4E, Johnson, IL

Built 1983 Load: 32.4 t ADT: 50

FAS 931

Good

Over: JOHNSON CREEK

NW1/4 SEC16 T13S,R4E, Johnson, IL

Built 1983 Load: 32.4 t ADT: 375

FAS 931

Good

Over: MILL CREEK

SW1/4 SEC16 T13S,R4E, Johnson, IL

Built 1983 Load: 32.4 t ADT: 325

TR 131

Good

Over: MAX CREEK TRIBUTARY

NE1/4 SEC31 T12S,R4E, Johnson, IL

Built 1984 Load: 32.4 t ADT: 75

TR 77

Good

Over: LITTLE CACHE CR TRIB

NE1/4 SEC34 T11S,R3E, Johnson, IL

Built 1984 Load: 32.4 t ADT: 50

TR 70

Good

Over: TRIB TO DUTCHMAN CR

SW1/4 SEC13 T12S,R2E, Johnson, IL

Built 1984 Load: 32.4 t ADT: 100

TR 24

Good

Over: TRIB TO BEAR BRANCH

SW1/4 SEC17 T13S,R2E, Johnson, IL

Built 1984 Load: 32.4 t ADT: 50

TR 15

Good

Over: CLIFTY CREEK

NW1/4 SEC11 T11S,R2E, Johnson, IL

Built 1985 Load: 32.4 t ADT: 1,150

Showing 18,201-18,250 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.