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%.

Condition Distribution

Illinois48.2%42.6%9.2%GoodFairPoor
Bridge inventory deck-condition mix - Illinois (FHWA NBI)

Counties (102)

Adams 325 Alexander 96 Bond 165 Boone 111 Brown 71 Bureau 382 Calhoun 81 Carroll 185 Cass 77 Champaign 743 Christian 323 Clark 232 Clay 171 Clinton 187 Coles 308 Cook 2185 Crawford 196 Cumberland 169 De Witt 197 DeKalb 264 Douglas 234 DuPage 380 Edgar 278 Edwards 79 Effingham 260 Fayette 356 Ford 300 Franklin 323 Fulton 210 Gallatin 82 Greene 166 Grundy 269 Hamilton 164 Hancock 291 Hardin 58 Henderson 144 Henry 331 Iroquois 565 Jackson 235 Jasper 180 Jefferson 270 Jersey 111 Jo Daviess 198 Johnson 120 Kane 354 Kankakee 352 Kendall 133 Knox 321 LaSalle 529 Lake 286 Lawrence 183 Lee 372 Livingston 578 Logan 296 Macon 368 Macoupin 248 Madison 543 Marion 301 Marshall 153 Mason 85 Massac 138 McDonough 210 McHenry 229 McLean 624 Menard 90 Mercer 162 Monroe 130 Montgomery 261 Morgan 241 Moultrie 171 Ogle 377 Peoria 365 Perry 139 Piatt 249 Pike 338 Pope 86 Pulaski 106 Putnam 50 Randolph 155 Richland 147 Rock Island 256 Saline 176 Sangamon 480 Schuyler 121 Scott 96 Shelby 330 St. Clair 502 Stark 89 Stephenson 332 Tazewell 361 Union 192 Vermilion 515 Wabash 88 Warren 202 Washington 232 Wayne 264 White 210 Whiteside 280 Will 674 Williamson 204 Winnebago 475 Woodford 222

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.

FAS 1599

Poor

Over: DRAINAGE CANAL

2.2 MI E MEYER, Adams, IL

Built 1980 Load: 0.6 t ADT: 200

CH 15

Poor

Over: E FK MAZONRIVER

0.05 MI W CH 16, Grundy, IL

Built 1977 Load: 1.0 t ADT: 1,400

MOOSE RD - TR 240

Poor

Over: WILSON CREEK

NE-35-T3NR2E, Fulton, IL

Built 1935 Load: 1.3 t ADT: 10

TR 10-B

Poor

Over: KING CREEK

W EDGE OF MINERAL, Bureau, IL

Built 1899 Load: 1.6 t ADT: 10

TR-6

Poor

Over: DRAINAGE DITCH

3.5 MI NE DIETERICH, Effingham, IL

Built 1909 Load: 1.6 t ADT: 25

TR208K(TWIN BRIDGE

Poor

Over: BIG CREEK

NE EDGE MT ZION, Macon, IL

Built 1967 Load: 1.9 t ADT: 375

All Bridges in Illinois

TR 157

Good

Over: JORDAN CREEK

1100N 1675E, Franklin, IL

Built 1994 Load: 32.4 t ADT: 25

TR 7

Good

Over: TRIB TO GUN CREEK

1625E 1750N, Franklin, IL

Built 1994 Load: 32.4 t ADT: 25

TR 84A

Good

Over: TRIB TO ANDY CREEK

950N 575E, Franklin, IL

Built 1994 Load: 32.4 t ADT: 650

CH 12

Good

Over: ICRR

2125E1475N, Franklin, IL

Built 1995 Load: 32.4 t ADT: 500

TR 22

Good

Over: TRIB TO PRAIRIE CR

300E375N, Franklin, IL

Built 1995 Load: 32.4 t ADT: 100

TR 403

Good

Over: POND CREEK

100N 1100E, Franklin, IL

Built 1995 Load: 32.4 t ADT: 1,000

TR 39

Good

Over: LITTLE INDIAN CREEK

FOREST ROAD, Franklin, IL

Built 1995 Load: 32.4 t ADT: 10

TR 250

Good

Over: DRUMMOND BRANCH

2 MI NE OF BENTON, Franklin, IL

Built 1995 Load: 32.4 t ADT: 325

TR 309

Good

Over: TRIB EWING CREEK

FOUR MILE LANE, Franklin, IL

Built 1995 Load: 32.4 t ADT: 125

TR 309

Good

Over: TRIB EWING CREEK

1.5 MI SO OF LOGAN, Franklin, IL

Built 1995 Load: 32.4 t ADT: 125

TR 205-SATCH RD

Good

Over: ANDY CREEK

875N-675E, Franklin, IL

Built 1996 Load: 32.4 t ADT: 50

FAS 874-LOGAN ROAD

Good

Over: EWING CREEK

325N-1650E, Franklin, IL

Built 1996 Load: 32.4 t ADT: 550

TR 288-BASELINE RD

Good

Over: EWING CREEK

2 MI SE OF LOGAN, Franklin, IL

Built 1997 Load: 32.4 t ADT: 250

TR1-N COUNTY LINE

Good

Over: WHITE OAK CREEK

1800N-0328E, Franklin, IL

Built 1996 Load: 32.4 t ADT: 25

TR263-THREEBRANCH

Good

Over: TRIB TO BIG MUDDY RV

0.75 MI SW C'PHER, Franklin, IL

Built 1996 Load: 32.4 t ADT: 25

TR 244-BEAN ROAD

Good

Over: HAMILTON BRANCH

1 MI W OF EWING, Franklin, IL

Built 1996 Load: 32.4 t ADT: 150

TR 364-SHEEP FARM

Good

Over: ILLINOIS CENTRAL RR

5 MI E OF EWING, Franklin, IL

Built 1997 Load: 32.4 t ADT: 25

BAVES RD-TR 139

Good

Over: TRIB-MID FK BIGMUDDY

1200N 1870E, Franklin, IL

Built 1997 Load: 32.4 t ADT: 25

TR70-APPLEORCHARD

Good

Over: TRIB TO ANDY CREEK

S OF COELLO, Franklin, IL

Built 1997 Load: 32.4 t ADT: 200

TR 110-SESSER LK R

Good

Over: TRIB TO REND LAKE

955N 500-SE SESSER, Franklin, IL

Built 1997 Load: 32.4 t ADT: 275

TR 255

Good

Over: TRIB TO BESSIE CREEK

725N 1770E, Franklin, IL

Built 1997 Load: 32.4 t ADT: 200

TR 304

Good

Over: GRANNY CREEK

1520N 1900E, Franklin, IL

Built 1997 Load: 32.4 t ADT: 75

TR 244-BEAN ROAD

Good

Over: TRIB TO HAMILTON BR

1.5 MI W OF EWING, Franklin, IL

Built 1999 Load: 32.4 t ADT: 150

TR 38-WEST CENTER

Good

Over: TRIB TO KING CREEK

NE OF COELLA, Franklin, IL

Built 1999 Load: 32.4 t ADT: 75

TR 327-MOORE ROAD

Good

Over: TRIB TO EWING CREEK

DEERING, Franklin, IL

Built 1998 Load: 32.4 t ADT: 50

TR 154B-JACKANICZ

Good

Over: TRIB TO GREEN RIVER

S OF ORIENT, Franklin, IL

Built 1999 Load: 32.4 t ADT: 100

TR 178-E BETHEL RD

Good

Over: TRIB TO BIG MUDDY RV

2 MI S WEST CITY, Franklin, IL

Built 1999 Load: 32.4 t ADT: 200

FAS 1972

Good

Over: SANDUSKY CREEK

0.75 M W FAS 1874, Franklin, IL

Built 1998 Load: 32.4 t ADT: 550

TR195A- KNOB PRAIR

Good

Over: ICG RR

1 MI NW OF AKIN, Franklin, IL

Built 1999 Load: 32.4 t ADT: 50

TR 288-BASELINE RD

Good

Over: LITTLE BESSIE CR

BENTON/EASTRN TWP LI, Franklin, IL

Built 1999 Load: 32.4 t ADT: 100

TR 303 - CRANE RD

Good

Over: TRIB TO PRAIRIE CR

1 MI NW ZEIGLER, Franklin, IL

Built 1999 Load: 32.4 t ADT: 25

TR 312-BOOTHBY RD

Good

Over: CNIC RR

1.5 MI W FAS 868, Franklin, IL

Built 2001 Load: 32.4 t ADT: 25

TR 109

Good

Over: TRIB TO BIG MUDDY RV

GRAMMER ROAD, Franklin, IL

Built 2001 Load: 32.4 t ADT: 50

TR 242A

Good

Over: TRIB TO LAKE MOSES

VAN HORN ROAD, Franklin, IL

Built 2001 Load: 32.4 t ADT: 25

TR 352-TRESTLE RD

Good

Over: TRIB SALINE RIVER

NEAR FRANK/WMSON CL, Franklin, IL

Built 2001 Load: 32.4 t ADT: 100

TR345-CAMBON LAKE

Good

Over: CAMBON LAKE

NEAR PLUMFIELD, Franklin, IL

Built 2001 Load: 32.4 t ADT: 50

TR 53

Good

Over: LITTLE INDIAN CREEK

TR 53 OV L INDIAN CR, Franklin, IL

Built 2001 Load: 32.4 t ADT: 50

TR 99

Good

Over: CARLTON BRANCH

EAST HEARD ROAD, Franklin, IL

Built 2001 Load: 32.4 t ADT: 25

TR 2-MORGAN ROAD

Good

Over: TRIB TO LITTLE MUDDY

0.8 MI N FAS 869, Franklin, IL

Built 2001 Load: 32.4 t ADT: 25

TR 222-S MARION RD

Good

Over: POND CREEK

0.7 M S WEST FRKFORT, Franklin, IL

Built 2002 Load: 32.4 t ADT: 900

TR 242-CYRILJAMES

Good

Over: TRIB TO JORDAN CREEK

3 MI SE OF EWING, Franklin, IL

Built 2002 Load: 32.4 t ADT: 75

TR 209-ST JOSEPH R

Good

Over: TRIB-BIG MUDDY RIVER

0.75 M S IL 14, Franklin, IL

Built 2001 Load: 32.4 t ADT: 200

TR 84-EAST CENTER

Good

Over: TRIB-ANDY CREEK

0.9 MI NW VALIER, Franklin, IL

Built 2002 Load: 32.4 t ADT: 25

MACE RD - TR 271

Good

Over: TRIB TO EWING CREEK

NE OF HANAFORD, Franklin, IL

Built 2002 Load: 32.4 t ADT: 50

ROSSBRILEY RD-TR 2

Good

Over: TRIB-LT BESSIE CREEK

N OF HANAFORD, Franklin, IL

Built 2002 Load: 32.4 t ADT: 200

FAS-1877

Good

Over: Prairie Creek

0.7 MI W IL 148, Franklin, IL

Built 2002 Load: 32.4 t ADT: 350

TR 368

Good

Over: CARLTON CREEK TRIB

SNOWFLAKE RD, Franklin, IL

Built 2003 Load: 32.4 t ADT: 50

TR 11

Good

Over: REND LAKE TRIB

HORSE PRAIRIE RD, Franklin, IL

Built 2003 Load: 32.4 t ADT: 25

TR 194

Good

Over: SUGAR CREEK

SUGAR CREEK ROAD, Franklin, IL

Built 2003 Load: 32.4 t ADT: 125

FAS 1878 S.MCLEANS

Good

Over: TRIB-BIG MUDDY RIVER

1MI S.OF BENTON, Franklin, IL

Built 2002 Load: 32.4 t ADT: 1,050

Showing 17,101-17,150 of 27,743 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
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.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.

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.