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 39

Good

Over: DRAINAGE DITCH

1 MI W GALESVILLE, Piatt, IL

Built 1999 Load: 32.4 t ADT: 50

TR 80

Good

Over: DRAINAGE DITCH

1 MI W GALESVILLE, Piatt, IL

Built 1999 Load: 32.4 t ADT: 25

TR 14

Good

Over: STREAM

1.25MI N LA PLACE, Piatt, IL

Built 2000 Load: 32.4 t ADT: 50

TR 14

Good

Over: STREAM

1.25 MI N LA PLACE, Piatt, IL

Built 2000 Load: 32.4 t ADT: 50

CH 18 (FAS 1530)

Good

Over: CAMP CREEK

2.2 MI SE WHITE HEAT, Piatt, IL

Built 2003 Load: 32.4 t ADT: 250

TR 105

Good

Over: WOLF RUN DITCH

2 MI E OF CISCO, Piatt, IL

Built 2001 Load: 32.4 t ADT: 225

TR 105

Good

Over: WOLF RUN DITCH

2 MI E OF CISCO, Piatt, IL

Built 2001 Load: 32.4 t ADT: 225

TR 39

Good

Over: GOOSE CREEK

2 MI NNE OF DELAND, Piatt, IL

Built 1999 Load: 32.4 t ADT: 50

TR 211

Good

Over: STREAM

.5 MI E OF LAPLACE, Piatt, IL

Built 2001 Load: 32.4 t ADT: 75

TR 72

Good

Over: UNNAMED TRIB

MI. SSW LODGE, Piatt, IL

Built 2002 Load: 32.4 t ADT: 25

TR 8A

Good

Over: CAMP CREEK

2.5 MI SW SEYMOUR, Piatt, IL

Built 2003 Load: 32.4 t ADT: 25

TR 178

Good

Over: TRIB TO CAMP CREEK

5 MI. ENE MONTICELLO, Piatt, IL

Built 2002 Load: 32.4 t ADT: 75

TR 43

Good

Over: UNAMED STREAM

1.0 MI. N. DELAND, Piatt, IL

Built 2004 Load: 32.4 t ADT: 50

T.R. 124

Good

Over: Lake Fork Drainage

1400N, 1200E, Piatt, IL

Built 2015 Load: 32.4 t ADT: 50

TR 54

Good

Over: SANGAMON RIVER

2250 N, 1300 E, Piatt, IL

Built 2010 Load: 32.4 t ADT: 350

TR 43

Good

Over: UNNAMED STREAM

1.0 MI N DELAND, Piatt, IL

Built 2004 Load: 32.4 t ADT: 50

TR 43

Good

Over: GOOSE CREEK

1.5 MI NE DELAND, Piatt, IL

Built 2006 Load: 32.4 t ADT: 50

TR 66

Good

Over: GOOSE CREEK

2.7 MI NW MONTICELLO, Piatt, IL

Built 2005 Load: 32.4 t ADT: 25

TR 115

Good

Over: TRIB SANGAMON RV

2.0 MI SSE CISCO, Piatt, IL

Built 2006 Load: 32.4 t ADT: 10

TR65

Good

Over: UNNAMED STREAM

0.5 MI SW LODGE, Piatt, IL

Built 2005 Load: 32.4 t ADT: 25

TR 125

Good

Over: Unnamed tributary

3 mi S of Cisco, Piatt, IL

Built 2007 Load: 32.4 t ADT: 100

TR 167

Good

Over: LAKE FORK

2.5 MI SE BEMENT, Piatt, IL

Built 2006 Load: 32.4 t ADT: 75

TR 33

Good

Over: CREEK

3.5 MI NNE DELAND, Piatt, IL

Built 2011 Load: 32.4 t ADT: 25

TR 40A

Good

Over: WILDCAT CREEK

2.5 MI W MONTICELLO, Piatt, IL

Built 2010 Load: 32.4 t ADT: 75

TR 129

Good

Over: WILLOW BRANCH

1200N 525E, Piatt, IL

Built 2013 Load: 32.4 t ADT: 50

TR-73

Good

Over: Goose Creek

3.50mi SE of Deland, Piatt, IL

Built 2017 Load: 32.4 t ADT: 75

ILLINOIS ST(MS 710

Good

Over: GOOSE CREEK

VILLAGE OF DELAND, Piatt, IL

Built 1989 Load: 32.4 t ADT: 100

IL 104

Good

Over: MCGEE DRAINAGE DITCH

.2M E IL 99, Pike, IL

Built 1988 Load: 32.4 t ADT: 2,850

I-72/US36 EB ENT R

Good

Over: DRAINAGE DITCH

IL 96/HULL INTCHG, Pike, IL

Built 1987 Load: 32.4 t ADT: 150

IL 104

Good

Over: TRIB MCKEE CREEK

1.2M E IL 107, Pike, IL

Built 1991 Load: 32.4 t ADT: 725

OLD US 36

Good

Over: HADLEY CREEK

.5MI NW BARRY, Pike, IL

Built 1995 Load: 32.4 t ADT: 125

ILL 96

Good

Over: BREWSTER CREEK

2MI SE NEW CANTON, Pike, IL

Built 2008 Load: 32.4 t ADT: 1,100

TR 89

Good

Over: Ditch to Sny

3.0 MI NW HULL, Pike, IL

Built 1983 Load: 32.4 t ADT: 50

TR 426

Good

Over: FLINT CREEK

2.0 MI E GRIGGSVILLE, Pike, IL

Built 2005 Load: 32.4 t ADT: 25

TR 105

Good

Over: S FORK MCREE CREEK

2.5 M SE OF PERRY, Pike, IL

Built 2008 Load: 32.4 t ADT: 25

TR 47

Good

Over: SPRING BRANCH

2.62 M E IL 107, Pike, IL

Built 2009 Load: 32.4 t ADT: 25

TR 47

Good

Over: SPRING BRANCH TRIB

2 M EAST PERRY, Pike, IL

Built 2009 Load: 32.4 t ADT: 25

CH 10

Good

Over: TRIB TO BAY CREEK

3 M W NEBO, Pike, IL

Built 2013 Load: 32.4 t ADT: 725

TR 47

Good

Over: McKee Creek

0.26 mi W TR 404, Pike, IL

Built 2016 Load: 32.4 t ADT: 50

FAS-596

Good

Over: Hadley Creek

1.70 mi N I-72, Pike, IL

Built 2017 Load: 32.4 t ADT: 600

TR-200

Good

Over: E Br Kiser Creek

0.50 mi N IL 106, Pike, IL

Built 2017 Load: 32.4 t ADT: 75

CH 14

Good

Over: FLINT CREEK

1.0 MI S GRIGGSVILLE, Pike, IL

Built 1978 Load: 32.4 t ADT: 125

FAS 596

Good

Over: UNNAMED STREAM

1.5MI NE NEW CANTON, Pike, IL

Built 1991 Load: 32.4 t ADT: 500

FAS 596

Good

Over: UNNAMED STREAM

2.5MI NE NEW CANTON, Pike, IL

Built 1991 Load: 32.4 t ADT: 500

TR 130

Good

Over: BRANCH OF BAY CREEK

SOUTH EDGEOF HOMBERG, Pope, IL

Built 1980 Load: 32.4 t ADT: 75

TR 139

Good

Over: MILLER CREEK

1.5 MI NE OF HOMBERG, Pope, IL

Built 1980 Load: 32.4 t ADT: 75

TR 57

Good

Over: BAY CREEK

0.3 M N OF ILL 147, Pope, IL

Built 1982 Load: 32.4 t ADT: 75

TR 88A

Good

Over: TRIB TO FLAT LICK CR

5 MI N GOLCONDA, Pope, IL

Built 1992 Load: 32.4 t ADT: 75

TR 115

Good

Over: FLAT LICK BRANCH

1 MI W OLD BROWNSFLD, Pope, IL

Built 1986 Load: 32.4 t ADT: 25

TR 71A

Good

Over: HAYES CREEK

GLENDALE, Pope, IL

Built 1989 Load: 32.4 t ADT: 75

Showing 20,151-20,200 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.