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

FAS 519 (CH 1)

Good

Over: BIG DITCH

1.5 M South of Dewey, Champaign, IL

Built 2020 Load: 32.4 t ADT: 2,550

FAS 519 (CH 1)

Good

Over: DITCH

2 MI S of DEWEY, Champaign, IL

Built 2020 Load: 32.4 t ADT: 2,550

TR 126 H

Good

Over: Stream

1.8 MI W of Tolono, Champaign, IL

Built 2015 Load: 32.4 t ADT: 250

TR 137B

Good

Over: Stream

1.2 mi E of Royal, Champaign, IL

Built 2016 Load: 32.4 t ADT: 350

TR 265

Good

Over: East Lake Fork Ditch

3 mi NW of Sadorus, Champaign, IL

Built 2016 Load: 32.4 t ADT: 25

FAS-527 (CH-16)

Good

Over: E Br Embarras River

W OF IL 130, Champaign, IL

Built 2018 Load: 32.4 t ADT: 750

FAS-531(CH-18)

Good

Over: Kaskaskia River

610E, 1000N, Champaign, IL

Built 2017 Load: 32.4 t ADT: 3,000

FAS-531 (CH-18)

Good

Over: East Lake Fork

375E, 1000N, Champaign, IL

Built 2017 Load: 32.4 t ADT: 2,450

TR 320 (2500)E

Good

Over: WATERWAY

0.2 MI S US 130, Champaign, IL

Built 2017 Load: 32.4 t ADT: 75

FAS-517 (CH-11)

Good

Over: Saline Branch

1 MI E OF THOMASBORO, Champaign, IL

Built 2018 Load: 32.4 t ADT: 1,650

FAS-517(CH-11)

Good

Over: Drainage Ditch

3 MI W OF FLATVILLE, Champaign, IL

Built 2018 Load: 32.4 t ADT: 1,650

TR-79

Good

Over: Trib. to Big Ditch

3 MI NNE OF MAHOMET, Champaign, IL

Built 1900 Load: 32.4 t ADT: 275

TR-62B

Good

Over: STREAM

3 MI NE MAHOMET, Champaign, IL

Built 2020 Load: 32.4 t ADT: 900

2ND ST (MS 7600A)

Good

Over: OWL CREEK

IN FISHER, Champaign, IL

Built 1997 Load: 32.4 t ADT: 150

FAU 7177/LINCOLN

Good

Over: SALINE BRANCH

LINCOLN AVE & OAK RD, Champaign, IL

Built 2004 Load: 32.4 t ADT: 2,300

Race St. (FAU 7181

Good

Over: Boneyard Creek

600 ft S o US 45, Champaign, IL

Built 2014 Load: 32.4 t ADT: 2,500

TR 1

Good

Over: KASKASKIA RIVER

5.5 MI NE ATWOOD, Champaign, IL

Built 1981 Load: 32.4 t ADT: 50

TR 1

Good

Over: DRY FORK

5.7 MI N OF ATWOOD, Champaign, IL

Built 1985 Load: 32.4 t ADT: 25

TR 1 B

Good

Over: DRAINAGE DITCH

1.25 MI NW VILLA GRO, Champaign, IL

Built 1976 Load: 32.4 t ADT: 50

TR 1 B

Good

Over: EMBARRAS RIVER

1.3 MI NW VILLA GROV, Champaign, IL

Built 1988 Load: 32.4 t ADT: 75

OLD IL 29

Good

Over: LAKE BERTINETTI

.80MI SO FAS 642, Christian, IL

Built 2001 Load: 32.4 t ADT: 400

IL 48

Good

Over: BUCKHART CREEK

NE CH4 IN STONINGTON, Christian, IL

Built 2005 Load: 32.4 t ADT: 3,600

IL 48

Good

Over: BUCKHART CR

SW EDGE STONINGTON, Christian, IL

Built 2007 Load: 32.4 t ADT: 4,200

CH 9 FAS 1647

Good

Over: OAK BRANCH

4MI NW ASSUMPTION, Christian, IL

Built 1977 Load: 32.4 t ADT: 175

TR 154

Good

Over: SPRING BRANCH

4 MI SE EDINBURG, Christian, IL

Built 1992 Load: 32.4 t ADT: 50

TR 256 MERIDIAN RO

Good

Over: FLAT BRANCH

2MI SE STONINGTON, Christian, IL

Built 1980 Load: 32.4 t ADT: 50

FAS 624

Good

Over: S FRK SANGAMON RIVER

2.0 MI W. EDINBURG, Christian, IL

Built 1985 Load: 32.4 t ADT: 200

TR 190

Good

Over: GROVE CITY CREEK

2.75MIS MT AUBURN, Christian, IL

Built 1991 Load: 32.4 t ADT: 175

TR 51A

Good

Over: GROVE CITY CREEK

3.0MI S MT. AUBURN, Christian, IL

Built 1991 Load: 32.4 t ADT: 50

TR 126

Good

Over: WILLOW BRANCH

6.0 SE MORRISONVILLE, Christian, IL

Built 1998 Load: 32.4 t ADT: 50

TR 256

Good

Over: LONG BRANCH

4 MI W ASSUMPTION, Christian, IL

Built 2004 Load: 32.4 t ADT: 100

TR 4B

Good

Over: Prairie Fork

1 mi NE Harvel, Christian, IL

Built 2012 Load: 32.4 t ADT: 20

TR 329

Good

Over: Prairie Fork

1 MI NE Harvel, Christian, IL

Built 2012 Load: 32.4 t ADT: 20

TR 268

Good

Over: Drainage Ditch

0.06 mi W US 51, Christian, IL

Built 2015 Load: 32.4 t ADT: 20

TR 243

Good

Over: LAKE FORK DRAINAGE

2 M S ASSUMPTION, Christian, IL

Built 2019 Load: 32.4 t ADT: 275

TR 329A

Good

Over: Lowis Branch

0.32 mi E TR 68, Christian, IL

Built 2015 Load: 32.4 t ADT: 10

TR 329A

Good

Over: LOWIS BRANCH

3.5 SE MORRISONVILLE, Christian, IL

Built 1990 Load: 32.4 t ADT: 10

MS 5790

Good

Over: TAYLORVILLE LAKE

NEAR BOYD DAPPERT PK, Christian, IL

Built 1998 Load: 32.4 t ADT: 125

4TH ST

Good

Over: DIEHL CREEK

MORRISONVILLE, Christian, IL

Built 2004 Load: 32.4 t ADT: 125

FAU7901 W Lake Sho

Good

Over: Lake Tville Spillway

Lake Taylorville, Christian, IL

Built 2014 Load: 32.4 t ADT: 1,350

FAS 691(CH 5)

Good

Over: WILLOW CREEK

4 MI SE MARTINSVILLE, Clark, IL

Built 1977 Load: 32.4 t ADT: 650

CH 5 (FAS 691)

Good

Over: STOCKWELL BRANCH

MARTINSVILLE, Clark, IL

Built 1977 Load: 32.4 t ADT: 1,500

FAS 689(CH 9)

Good

Over: DOYLES CREEK

5 MI N MARTINSVILLE, Clark, IL

Built 1977 Load: 32.4 t ADT: 300

FAS 688 (CH 8)

Good

Over: MILL CREEK

0.8 MI NW CLARSVL, Clark, IL

Built 1979 Load: 32.4 t ADT: 1,500

TR 58

Good

Over: LAMBS BRANCH

3.5 MI SE WESTFIELD, Clark, IL

Built 1977 Load: 32.4 t ADT: 75

TR 95

Good

Over: FOX CREEK

1.5 MI SE CLARKSVILL, Clark, IL

Built 1978 Load: 32.4 t ADT: 200

FAS 696(TR 142)

Good

Over: WILLOW CREEK TRIB

2 MI E NEADMORE, Clark, IL

Built 1979 Load: 32.4 t ADT: 575

TR 87

Good

Over: DOYLES CREEK

0.5 MI NE CLEONE, Clark, IL

Built 1979 Load: 32.4 t ADT: 50

TR 274 A

Good

Over: SNYDER CREEK

2 MI E WALNUT PRAIRI, Clark, IL

Built 1979 Load: 32.4 t ADT: 150

FAS 2657(CH 24)

Good

Over: LAMB CREEK BRANCH

4 MI SE WESTFIELD, Clark, IL

Built 1979 Load: 32.4 t ADT: 200

Showing 15,751-15,800 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.