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 6/SAND HILL RD

Good

Over: QUEENS LAKE BRANCH

0.5 SO. RT160 RT 177, Clinton, IL

Built 1984 Load: 32.4 t ADT: 50

PIONEER ROAD

Good

Over: TRIB. SANTA FE DITCH

1300E PIONEER RD, Clinton, IL

Built 1997 Load: 32.4 t ADT: 350

BECKEMEYER FAS 178

Good

Over: TRIB TO BEAVER CR.

.75 N OF BECKEMEYER, Clinton, IL

Built 2002 Load: 32.4 t ADT: 450

WIEDLE RD/TR 81

Good

Over: BR. OF CARLYLE LK

4MI SW OF BOULDER, Clinton, IL

Built 2005 Load: 32.4 t ADT: 100

DRIVE IN RD/TR 70

Good

Over: GRASSY BRANCH

2MI S OF BREESE, Clinton, IL

Built 2005 Load: 32.4 t ADT: 850

TR 37/SPRING RD

Good

Over: DRAINAGE DITCH

1 MI E STOLLETOWN, Clinton, IL

Built 2008 Load: 32.4 t ADT: 275

EMERALD RD/CH 17

Good

Over: BEAVER CK OVERFLOW

1590E EMERALD RD, Clinton, IL

Built 1996 Load: 32.4 t ADT: 350

EMERALD RD

Good

Over: BEAVER CREEK OVERFLO

1575E EMERALD RD, Clinton, IL

Built 1996 Load: 32.4 t ADT: 350

CH 19/DIAMOND SPRI

Good

Over: COLES CREEK

1580N DIAMOND SPRING, Clinton, IL

Built 1997 Load: 32.4 t ADT: 325

EMERALD RD CH 17

Good

Over: FLAT BRANCH

0.7 MILES W. ILL127, Clinton, IL

Built 1999 Load: 32.4 t ADT: 350

WRINGE RD. CH 9

Good

Over: BEAVER CREEK

3.5 MI W OF ILL 127, Clinton, IL

Built 2000 Load: 32.4 t ADT: 225

Wringe Rd

Good

Over: Trib. to Beaver Cr

2 Mi NW of Carlyle, Clinton, IL

Built 2014 Load: 32.4 t ADT: 225

CH9 WRINGE RD

Good

Over: TRIB TO BEAVER CREEK

2M WEST OF CARLYLE, Clinton, IL

Built 2008 Load: 32.4 t ADT: 225

Emerald Road, CH 1

Good

Over: Beaver Creek

4 Mi NW of Carlyle, Clinton, IL

Built 2016 Load: 32.4 t ADT: 350

SO 4TH ST

Good

Over: DRAINAGE DITCH

SO 4TH ST, Clinton, IL

Built 1991 Load: 32.4 t ADT: 850

OLD CARLYLE RD

Good

Over: TRIB TO SHOAL CREEK

BREESE, Clinton, IL

Built 1994 Load: 32.4 t ADT: 350

MSS6100

Good

Over: TRIB TO SUGAR CK

1MI N OF AVISTION, Clinton, IL

Built 2003 Load: 32.4 t ADT: 1,000

SBI 16(FAS 1669)

Good

Over: CASSEL CREEK

1.0 MI W CHARLESTON, Coles, IL

Built 1980 Load: 32.4 t ADT: 3,450

FAS 676(CH 5)

Good

Over: HURRICANE CREEK

2.5 MI S OF HUTTON, Coles, IL

Built 1979 Load: 32.4 t ADT: 75

TR 100

Good

Over: FLAT BRANCH

.5 E HUMBOLDT, Coles, IL

Built 1980 Load: 32.4 t ADT: 175

TR 261

Good

Over: E BR HURRICANE CREEK

2 MI E OF HUTTON, Coles, IL

Built 1980 Load: 32.4 t ADT: 75

CH 8

Good

Over: FLAT BRANCH

5 MI E OF HUMBOLDT, Coles, IL

Built 1985 Load: 32.4 t ADT: 100

TR 240

Good

Over: GREASY CREEK

2 MI N OF RARDIN, Coles, IL

Built 1980 Load: 32.4 t ADT: 25

TR 24

Good

Over: LITTLE WABASH RIVER

2 MI W OF MATTOON, Coles, IL

Built 1980 Load: 32.4 t ADT: 275

CH 16

Good

Over: FLAT BRANCH CREEK

3 MI NE COOKS MILL, Coles, IL

Built 1980 Load: 32.4 t ADT: 325

TR 108

Good

Over: DRAINAGE DITCH

1.5 MI NE HUMBOLDT, Coles, IL

Built 1981 Load: 32.4 t ADT: 25

TR 302

Good

Over: E BR HURRICANE CREEK

6.5 MI E FOX RIDGE, Coles, IL

Built 1981 Load: 32.4 t ADT: 50

TR 66

Good

Over: KASKASKIA RIVER TRIB

4 MI NW HUMBOLDT, Coles, IL

Built 1985 Load: 32.4 t ADT: 75

TR 69

Good

Over: FLAT BRANCH CREEK

.5 MI S HUMBOLDT, Coles, IL

Built 1983 Load: 32.4 t ADT: 50

TR 69

Good

Over: FLAT BRANCH CREEK

.5 MI S HUMBOLDT, Coles, IL

Built 1983 Load: 32.4 t ADT: 50

FAU 7699

Good

Over: RILEY CREEK

1 MI N MATTOON, Coles, IL

Built 1983 Load: 32.4 t ADT: 300

TR 7

Good

Over: LITTLE EMBARRAS R

2.25 MI E OAKLAND, Coles, IL

Built 1990 Load: 32.4 t ADT: 50

TR 10

Good

Over: KASKASKIA RIVER

3.3 MI SW COOKS MILL, Coles, IL

Built 1988 Load: 32.4 t ADT: 100

TR 55

Good

Over: GREASY CREEK TRIB

.25 MI W BUSHTON, Coles, IL

Built 1983 Load: 32.4 t ADT: 125

TR 119 A

Good

Over: UNION DRAIN DIT #3

3.5 MI NW CHARLESTON, Coles, IL

Built 1983 Load: 32.4 t ADT: 25

TR 272 A

Good

Over: WHETSTONE CREEK

2 MI NW OF WESTFIELD, Coles, IL

Built 1985 Load: 32.4 t ADT: 50

TR 55

Good

Over: GREASY CREEK

1.5 MI W BUSHTON, Coles, IL

Built 1985 Load: 32.4 t ADT: 125

TR 241 A

Good

Over: INDIAN CREEK

4 MI E OF LERNA, Coles, IL

Built 1986 Load: 32.4 t ADT: 75

TR 86

Good

Over: KICKAPOO CREEK

1 MI S OF MATTOON, Coles, IL

Built 1986 Load: 32.4 t ADT: 550

TR 225 A

Good

Over: IC RR

0.5 MI S OF MAGNET, Coles, IL

Built 1986 Load: 32.4 t ADT: 1,000

TR 276

Good

Over: POLECAT CREEK

1.5 MI SW ASHMORE, Coles, IL

Built 1987 Load: 32.4 t ADT: 175

TR 43

Good

Over: FLAT BRANCH

1.3 MI E HUMBOLDT, Coles, IL

Built 1986 Load: 32.4 t ADT: 50

TR 279

Good

Over: OPOSSUM CREEK

1 MI E FOX RIDGE PRK, Coles, IL

Built 1989 Load: 32.4 t ADT: 125

TR 71

Good

Over: DRAINAGE DITCH

1.25 MI S HUMBOLDT, Coles, IL

Built 1991 Load: 32.4 t ADT: 50

TR 88C

Good

Over: RILEY CREEK

3.2 MI NE OF MATTOON, Coles, IL

Built 1988 Load: 32.4 t ADT: 50

TR 11 A

Good

Over: KASKASKIA RIVER

4.4 MI NW HUMBOLDT, Coles, IL

Built 1993 Load: 32.4 t ADT: 75

TR 4

Good

Over: WHITLEY CREEK

1.25 MI S COLES STA, Coles, IL

Built 1993 Load: 32.4 t ADT: 275

TR 182

Good

Over: CASSELL CREEK

1 MI N CHARLESTON, Coles, IL

Built 1989 Load: 32.4 t ADT: 300

FAS 1605(CH 11)

Good

Over: STREAM

IN ETNA, Coles, IL

Built 1988 Load: 32.4 t ADT: 600

TR 88

Good

Over: FLAT BRANCH

.2 MI S HUMBOLDT, Coles, IL

Built 1994 Load: 32.4 t ADT: 275

Showing 16,001-16,050 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.