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

TR125

Good

Over: SCATTERING POINT CR

630E, 1800N, Livingston, IL

Built 1992 Load: 32.4 t ADT: 100

TR 2 KKK

Good

Over: DRAINAGE DITCH

2830 N, 3600 E, Livingston, IL

Built 1988 Load: 32.4 t ADT: 25

TR 2

Good

Over: MOON CREEK

3150 N, 00 E, Livingston, IL

Built 1989 Load: 32.4 t ADT: 50

TR 85A

Good

Over: BAYOU

965 E, 2350N, Livingston, IL

Built 1991 Load: 32.4 t ADT: 20

TR 41D

Good

Over: W FORK MAZON RIVER

2160E, 2800N, Livingston, IL

Built 1991 Load: 32.4 t ADT: 25

TR 135

Good

Over: FIVE MILE CREEK

2695E, 1700N, Livingston, IL

Built 1990 Load: 32.4 t ADT: 50

TR 107

Good

Over: TRIB SHORT POINT CR

495E, 2100N, Livingston, IL

Built 1991 Load: 32.4 t ADT: 50

TR 141

Good

Over: DITCH

3530E, 1600N, Livingston, IL

Built 1992 Load: 32.4 t ADT: 75

FAU 6344

Good

Over: WOLF CREEK

1410E, 2000N, Livingston, IL

Built 1994 Load: 32.4 t ADT: 100

TR 111B

Good

Over: MOREHOUSE CREEK

805 E, 2000N, Livingston, IL

Built 1992 Load: 32.4 t ADT: 50

TR 85

Good

Over: SHORT POINT CREEK

3 MI SW CORNELL, Livingston, IL

Built 1990 Load: 32.4 t ADT: 25

TR 224B

Good

Over: FIVE MILE CREEK

1460N, 2600E, Livingston, IL

Built 1994 Load: 32.4 t ADT: 50

TR 136

Good

Over: TRIB TO SMITH BRANCH

183 N, 1750 E, Livingston, IL

Built 1992 Load: 32.4 t ADT: 375

TR 29

Good

Over: E FORK MAZON RIVER

3004E, 3000N, Livingston, IL

Built 1993 Load: 32.4 t ADT: 25

TR166

Good

Over: SMITH BRANCH

1775N,2000E, Livingston, IL

Built 1994 Load: 32.4 t ADT: 25

TR 190

Good

Over: TRIB.S.FORK VERM.

2160E, 1125N, Livingston, IL

Built 1995 Load: 32.4 t ADT: 25

TR 187

Good

Over: CREEK

2935E, 1250N, Livingston, IL

Built 1994 Load: 32.4 t ADT: 25

TR 111B

Good

Over: SCATTERING PT. CREEK

2000N,660E, Livingston, IL

Built 1995 Load: 32.4 t ADT: 50

TR86

Good

Over: BAKER RUN

2240N,1125E, Livingston, IL

Built 1995 Load: 32.4 t ADT: 25

TR 60

Good

Over: TRIB OF VERMILLION

3030N 900E, Livingston, IL

Built 1996 Load: 32.4 t ADT: 50

TR 237A

Good

Over: TRIB S FORK VERMIL.R

2805E, 600N, Livingston, IL

Built 1997 Load: 32.4 t ADT: 50

TR10

Good

Over: LONG PT CREEK

2560N, 190E, Livingston, IL

Built 1997 Load: 32.4 t ADT: 100

TR 102

Good

Over: ROOKS CREEK

1085 N,1300E, Livingston, IL

Built 1997 Load: 32.4 t ADT: 100

TR 151

Good

Over: TRIB TO VERMILLION R

2205E,1450N, Livingston, IL

Built 1997 Load: 32.4 t ADT: 50

TR 113B

Good

Over: TRIB FIVE MILE CRK

2805E, 2000N, Livingston, IL

Built 1998 Load: 32.4 t ADT: 75

TR 201

Good

Over: TRIB. TO VERMILLION

3030E, 1100N, Livingston, IL

Built 1997 Load: 32.4 t ADT: 50

TR 10A

Good

Over: MOON CREEK

3035N, 200E, Livingston, IL

Built 1998 Load: 32.4 t ADT: 50

TR 84

Good

Over: TRIB TO VERMILLION

4.8 MI N OF CORNELL, Livingston, IL

Built 1998 Load: 32.4 t ADT: 75

TR 21

Good

Over: MOON CREEK

375E, 3050N, Livingston, IL

Built 1999 Load: 32.4 t ADT: 100

TR 19

Good

Over: W FORK MAZON RIVER

1.5 MI W OF DWIGHT, Livingston, IL

Built 2000 Load: 32.4 t ADT: 75

TR 28A

Good

Over: CONRAIL RR&ATSF RR

1 MI SE OF STREATOR, Livingston, IL

Built 2001 Load: 32.4 t ADT: 300

TR 145

Good

Over: MOREHOUSE CREEK

2S, 1.8E OF FLANAGAN, Livingston, IL

Built 1999 Load: 32.4 t ADT: 50

TR 18C

Good

Over: TRIB SCATTERING PTCK

1685 N, 400 E, Livingston, IL

Built 2000 Load: 32.4 t ADT: 275

TR 52

Good

Over: CREEK

2980N, 800E, Livingston, IL

Built 2000 Load: 32.4 t ADT: 275

TR 238

Good

Over: TRIB TO FIVE MILE CK

.3E, 1.2N SAUNEMIN, Livingston, IL

Built 2001 Load: 32.4 t ADT: 50

TR 0036

Good

Over: SCATTERING PT CR

700E,2045N, Livingston, IL

Built 2001 Load: 32.4 t ADT: 25

TR 268A

Good

Over: STREAM

.7W,3.7N, CHATSWORTH, Livingston, IL

Built 2002 Load: 32.4 t ADT: 25

TR 145

Good

Over: ROOKS CREEK

1295E, 1500N, Livingston, IL

Built 2002 Load: 32.4 t ADT: 25

TR 282

Good

Over: DRAINAGE DITCH

3500E,3235N, Livingston, IL

Built 2002 Load: 32.4 t ADT: 25

TR 171

Good

Over: DRAINAGE DITCH

2865E, 1300N, Livingston, IL

Built 2003 Load: 32.4 t ADT: 50

TR 48

Good

Over: PIKE CREEK

1150N, 800E, Livingston, IL

Built 2003 Load: 32.4 t ADT: 75

TR 282A

Good

Over: DRAINAGE DITCH

1310 N, 3500 E, Livingston, IL

Built 2003 Load: 32.4 t ADT: 100

TR 254A

Good

Over: TRIB SFRK VERMILLION

3100E, 525N, Livingston, IL

Built 2003 Load: 32.4 t ADT: 50

TR 113B

Good

Over: TRIB FIVE MILE CR

3285 E, 2000 N, Livingston, IL

Built 2005 Load: 32.4 t ADT: 25

TR 69

Good

Over: UNNAMED STREAM

6.1 MI E ODELL, Livingston, IL

Built 2004 Load: 32.4 t ADT: 50

TR 212

Good

Over: TRIB TO VERMILION RI

1085N, 2400E, Livingston, IL

Built 2005 Load: 32.4 t ADT: 125

TR 121

Good

Over: FELKY SLOUGH

2405 E, 1900N, Livingston, IL

Built 2003 Load: 32.4 t ADT: 25

TR 224B

Good

Over: N FORK VERMILION R

1370 N, 2600 E, Livingston, IL

Built 2009 Load: 32.4 t ADT: 50

TR 29

Good

Over: TRIB W FORK MAZON RI

2700E, 3000N, Livingston, IL

Built 2005 Load: 32.4 t ADT: 75

TR92A 1200 E

Good

Over: MUD CREEK

2610 N, 1200 E, Livingston, IL

Built 2009 Load: 32.4 t ADT: 25

Showing 18,851-18,900 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.