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 339 (CH 4)

Good

Over: THE BIG FOUR

880N,1000E, Ford, IL

Built 2006 Load: 32.4 t ADT: 500

TR 60B

Good

Over: TRIB TO KELLY CREEK

2.5 MILES S IL 116, Ford, IL

Built 2003 Load: 32.4 t ADT: 25

TR 42

Good

Over: STREAM

1200 E & 3950 N, Ford, IL

Built 2006 Load: 32.4 t ADT: 50

TR 32 PEACH ORCHAR

Good

Over: STREAM

1160N,900E, Ford, IL

Built 2005 Load: 32.4 t ADT: 225

TR 25

Good

Over: STREAM

2650N & 1290E, Ford, IL

Built 2005 Load: 32.4 t ADT: 25

TR 82 BUTTON

Good

Over: STREAM

2280E,150N, Ford, IL

Built 2007 Load: 32.4 t ADT: 100

TR 60A LYMAN

Good

Over: STREAM

1560N,1600E, Ford, IL

Built 2007 Load: 32.4 t ADT: 50

FAS 515 BASE LINE

Good

Over: STREAM

2620E,00N, Ford, IL

Built 2007 Load: 32.4 t ADT: 200

TR 24 DIX

Good

Over: STREAM

560N,600E, Ford, IL

Built 2008 Load: 32.4 t ADT: 100

TR 35 BRENTON

Good

Over: STREAM

1360E,2450N, Ford, IL

Built 2009 Load: 32.4 t ADT: 75

TR 36

Good

Over: DRAINAGE DITCH

430N, 1100 E, Ford, IL

Built 2012 Load: 32.4 t ADT: 25

TR 32, N 900 E RD

Good

Over: BIG FOUR DITCH TRIB

1000N & 900E, Ford, IL

Built 2012 Load: 32.4 t ADT: 225

TR 31/ 2500 N RD

Good

Over: unnamed stream

1350 E 2500 N Rd, Ford, IL

Built 2013 Load: 32.4 t ADT: 200

TR 105A

Good

Over: Unnamed Stream

790 E 200 N, Ford, IL

Built 2013 Load: 32.4 t ADT: 25

TR 13, Mona

Good

Over: Stream

1640 E, 3200 N, Ford, IL

Built 2015 Load: 32.4 t ADT: 50

TR-88

Good

Over: Stream

2490E 100N, Ford, IL

Built 2017 Load: 32.4 t ADT: 25

TR 19A PELLA

Good

Over: STREAM

2900N,1730E, Ford, IL

Built 2020 Load: 32.4 t ADT: 25

PELLS ST/MS 1600

Good

Over: I C RAILROAD

650 FT E OF MKT ST., Ford, IL

Built 1999 Load: 32.4 t ADT: 3,200

HOLMES ST. FAU 3

Good

Over: CN RAILROAD

130FT W ILL 9, Ford, IL

Built 2010 Load: 32.4 t ADT: 700

ILL 37

Good

Over: HAMILTON BR (REND L)

1.6 MI N ILL 154, Franklin, IL

Built 1965 Load: 32.4 t ADT: 3,500

CH26 ORIENT RD

Good

Over: MIDDLE FORK CK

ORIENT ROAD, Franklin, IL

Built 1963 Load: 32.4 t ADT: 850

CH 15

Good

Over: LITTLE MUDDY RIVER

PEACH ORCHARD RD, Franklin, IL

Built 1900 Load: 32.4 t ADT: 200

TR 288

Good

Over: STEPHENS CREEK

2MI NW OF T-SONVILLE, Franklin, IL

Built 1977 Load: 32.4 t ADT: 250

TR 80

Good

Over: L. INDIAN CR. TRIB.

3/4 MI. W OF SESSER, Franklin, IL

Built 1977 Load: 32.4 t ADT: 100

TR 227

Good

Over: ANDY CREEK

3/4 MI SO.OF BUCKNER, Franklin, IL

Built 1977 Load: 32.4 t ADT: 75

TR 362

Good

Over: AKIN CREEK

2 MI NORTH OF AKIN, Franklin, IL

Built 1977 Load: 32.4 t ADT: 50

TR 244

Good

Over: TRIB TO GUN CREEK

2 MI NW OF EWING, Franklin, IL

Built 1978 Load: 32.4 t ADT: 150

TR 378

Good

Over: TRIB MID FK SALT CR

2 MI NE THOMPSONVILL, Franklin, IL

Built 1978 Load: 32.4 t ADT: 75

TR 157

Good

Over: MOSES LAKE OVERFLOW

0.5 MI S OF ILL 14, Franklin, IL

Built 1978 Load: 32.4 t ADT: 50

TR 222

Good

Over: POND CREEK

1 MI S W. FRANKFORT, Franklin, IL

Built 1979 Load: 32.4 t ADT: 900

TR 273

Good

Over: BRANCH L. MUDDY RIV.

1.5 M.S. MULKEYTOWN, Franklin, IL

Built 1978 Load: 32.4 t ADT: 50

TR 53

Good

Over: LITTLE INDIAN CREEK

2 MI SW SESSER, Franklin, IL

Built 1978 Load: 32.4 t ADT: 50

TR 235

Good

Over: TR B MUDDY

1.5 M SW CITY, Franklin, IL

Built 1980 Load: 32.4 t ADT: 75

TR 288

Good

Over: TR EWING CREEK

.5 MI SE LOGAN, Franklin, IL

Built 1980 Load: 32.4 t ADT: 225

TR 187

Good

Over: TR MIDDLE FORK

.5 MI EAST BENTON, Franklin, IL

Built 1980 Load: 32.4 t ADT: 100

TR 7

Good

Over: TR GUN CK

2 MI NORTH EWING, Franklin, IL

Built 1980 Load: 32.4 t ADT: 25

TR 366

Good

Over: AKIN CREEK

TR 366 OV AKIN CREEK, Franklin, IL

Built 1981 Load: 32.4 t ADT: 75

TR 21

Good

Over: SUGAR CAMP CREEK

EAST OF FRISCO, Franklin, IL

Built 1981 Load: 32.4 t ADT: 50

TR272

Good

Over: TR LITTLE BESSIE CK

N HANAFORD, Franklin, IL

Built 1981 Load: 32.4 t ADT: 75

FAS 1881

Good

Over: LITTLE MUDDY RV

DAVID DEESOV LITTLE, Franklin, IL

Built 1981 Load: 32.4 t ADT: 900

TR 353

Good

Over: TR TILLEY CREEK

E WEST FRANKFORT, Franklin, IL

Built 1982 Load: 32.4 t ADT: 100

TR 116

Good

Over: TRIBLITTLEINDIAN CK

NE SESSER, Franklin, IL

Built 1981 Load: 32.4 t ADT: 50

TR 244

Good

Over: TR GUN CK

NW EWING, Franklin, IL

Built 1982 Load: 32.4 t ADT: 150

TR 38

Good

Over: BR LITTLE INDIAN CK

SW SESSER, Franklin, IL

Built 1982 Load: 32.4 t ADT: 50

FAS 1881

Good

Over: ANDY CREEK

E VALIER, Franklin, IL

Built 1938 Load: 32.4 t ADT: 1,350

TR 12

Good

Over: TRIB LITTLE MUDDY

WEST CHRISTOPHER, Franklin, IL

Built 1983 Load: 32.4 t ADT: 25

TR 317

Good

Over: TRIB LITTLE MUDDY

NW OF ROYALTON, Franklin, IL

Built 1983 Load: 32.4 t ADT: 10

TR 140

Good

Over: TRIB TO POND CREEK

NORTH FREEMAN SPUR, Franklin, IL

Built 1983 Load: 32.4 t ADT: 75

TR 257

Good

Over: TR EWINGCREEK

SE AKIN, Franklin, IL

Built 1983 Load: 32.4 t ADT: 100

FAS 868

Good

Over: EWING CK

1 MIS AKIN, Franklin, IL

Built 1984 Load: 32.4 t ADT: 1,600

Showing 17,001-17,050 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.