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 500

Good

Over: PAINTER CREEK

JUST S OF BISMARCK, Vermilion, IL

Built 1993 Load: 45.0 t ADT: 2,300

IL 251 NB

Good

Over: KILBUCK CREEK

.6 MI N. OGLE CO.LN., Winnebago, IL

Built 1989 Load: 45.0 t ADT: 4,450

IL 173

Good

Over: PISCASAW CREEKTRIB.

AT MCHENRY CO. LN., Boone, IL

Built 2001 Load: 45.4 t ADT: 5,000

FAS 245/CH 9

Good

Over: BR. WEST BUREAU CRK.

4.5 MI. N. WYANET, Bureau, IL

Built 1995 Load: 45.4 t ADT: 475

IL 29

Good

Over: DRAINAGE

0.29 mi SE FAS 1634, Christian, IL

Built 2012 Load: 45.4 t ADT: 8,100

IL 127

Good

Over: KASKASKIA RIVER

2.5 M SE CARLYLE, Clinton, IL

Built 2015 Load: 45.4 t ADT: 3,550

IL 177/160

Good

Over: KASKASKIA OVERFLOW

1.2M E of NEW MEMPHI, Clinton, IL

Built 1997 Load: 45.4 t ADT: 1,750

SBI 16(FAS 1669)

Good

Over: RILEY CREEK BRANCH

.75 MI NW OF LOXA, Coles, IL

Built 1986 Load: 45.4 t ADT: 2,200

I- 55 EB RMP US41

Good

Over: MCCORMICK PARKING

1.5 M E of I-94, Cook, IL

Built 2017 Load: 45.4 t ADT: 33,600

135TH ST

Good

Over: TINLEY CREEK

1.5 M W OF IL 50, Cook, IL

Built 2003 Load: 45.4 t ADT: 12,800

TOWER RD

Good

Over: SKOKIE RIVER

0.2 M E I-94, Cook, IL

Built 2002 Load: 45.4 t ADT: 5,100

GRANVILLE AV

Good

Over: SILVER CREEK

0.15 M S of Grand Av, Cook, IL

Built 2004 Load: 45.4 t ADT: 375

FAP 116 (IL 130)

Good

Over: LOST CREEK

7 MI S COLES CO LINE, Cumberland, IL

Built 2010 Load: 45.4 t ADT: 2,950

US 45(FAS 1671)

Good

Over: HAYES BRANCH

4.2 MI N OF TUSCOLA, Douglas, IL

Built 1924 Load: 45.4 t ADT: 3,050

FERRY RD

Good

Over: EJ&E RR

1.4 MI W IL 59, DuPage, IL

Built 2003 Load: 45.4 t ADT: 5,000

WEST ENTRANCE ROAD

Good

Over: W. BR. DUPAGE RIVER

0.06 MI E RAYMOND DR, DuPage, IL

Built 2018 Load: 45.4 t ADT: 400

FAP-750 (ILL-185)

Good

Over: HICKORY CREEK

5 MI SE US 40, Fayette, IL

Built 1988 Load: 45.4 t ADT: 1,000

ILL 115

Good

Over: N FK VERMILLION R.

5.07 MI S OF ILL 116, Ford, IL

Built 1981 Load: 45.4 t ADT: 675

ILL 115

Good

Over: KELLY CREEK

2.30 MI S OF ILL 116, Ford, IL

Built 1981 Load: 45.4 t ADT: 675

ILL 9

Good

Over: SUGAR CREEK

5.71 MI E US 45, Ford, IL

Built 1997 Load: 45.4 t ADT: 1,900

IL 116

Good

Over: LITTLERS CR

2.4 MI W FARMINGTON, Fulton, IL

Built 2009 Load: 45.4 t ADT: 1,350

FAS-272 Braceville

Good

Over: MAZON RIVER

0.2MI E at Gorman Rd, Grundy, IL

Built 1970 Load: 45.4 t ADT: 1,450

US 136 WB

Good

Over: PRAIRIE CREEK

2.5 MI E CARTHAGE, Hancock, IL

Built 2007 Load: 45.4 t ADT: 4,000

US 136 EB

Good

Over: PRAIRIE CREEK

2.5 MI E CARTHAGE, Hancock, IL

Built 2007 Load: 45.4 t ADT: 4,000

CH-3

Good

Over: KANKAKEE RIVER

AROMA PARK, Kankakee, IL

Built 1914 Load: 45.4 t ADT: 2,800

IL 47

Good

Over: West Aux Sable Creek

0.66 M S of US 52, Kendall, IL

Built 2018 Load: 45.4 t ADT: 5,550

CENTRAL AV

Good

Over: RAVINE

0.1 W LAKE MICHIGAN, Lake, IL

Built 2022 Load: 45.4 t ADT: 1,200

ILL 157

Good

Over: BURDICK BRANCH

3.5 N I-70, Madison, IL

Built 1933 Load: 45.4 t ADT: 6,300

IL 111 NB

Good

Over: CAHOKIA CANAL

.5MI N JCT 70, Madison, IL

Built 2002 Load: 45.4 t ADT: 4,050

US 67

Good

Over: TRIB S BR PIASA CRK

1.4MI S JERSEY CO LN, Madison, IL

Built 1988 Load: 45.4 t ADT: 11,200

FAP 315

Good

Over: DITCH

SW OF LEROY, McLean, IL

Built 2010 Load: 45.4 t ADT: 1,600

TR 348

Good

Over: BUCK CREEK

0.5 MI SE GRIDLEY, McLean, IL

Built 2000 Load: 45.4 t ADT: 100

C.H. 12

Good

Over: Trib Mackinaw River

3.2 MI SSE Clarksvil, McLean, IL

Built 2013 Load: 45.4 t ADT: 325

ILL 78

Good

Over: LITTLE INDIAN CR

0.2 S CASS CO LINE, Morgan, IL

Built 2005 Load: 45.4 t ADT: 1,900

US 36(FAP 323)

Good

Over: DITCH #4

2.4 MI W HAMMOND, Moultrie, IL

Built 2016 Load: 45.4 t ADT: 2,050

CHANA RD

Good

Over: BR. OF KYTE RIVER

3.5 MI. N. ASHTON, Ogle, IL

Built 1999 Load: 45.4 t ADT: 425

CH-22 Akron Road

Good

Over: Br Kickapoo Creek

NE1/4 35 AKRON TWP, Peoria, IL

Built 2018 Load: 45.4 t ADT: 275

ILL 10(FAP 721)

Good

Over: GOOSE CREEK

E EDGE OF DELAND, Piatt, IL

Built 1932 Load: 45.4 t ADT: 1,950

IL 4

Good

Over: PLUM CREEK

1.7 MI S OF IL 13, Randolph, IL

Built 2011 Load: 45.4 t ADT: 4,450

FAS 1857-CH7

Good

Over: PRAIRIE DU ROCHER CR

PRAIRIE DU ROCHER, Randolph, IL

Built 2009 Load: 45.4 t ADT: 650

HARCO BLACKTOP

Good

Over: STREAM

1.5 MI S OF ILL 34, Saline, IL

Built 2009 Load: 45.4 t ADT: 1,400

MS 7490A Drawbridg

Good

Over: Jacksonville Branch

0.08 mi S Wabash Av, Sangamon, IL

Built 2021 Load: 45.4 t ADT: 1,600

TR 455

Good

Over: Pond Creek

1.0 W Fairfield Muni, Wayne, IL

Built 2016 Load: 45.4 t ADT: 50

US 6

Good

Over: ROCK RUN CREEK

1.3 M E I-55, Will, IL

Built 2003 Load: 45.4 t ADT: 10,250

COMLY ROAD

Good

Over: GROVE CREEK

2 MI S OF PECATONICA, Winnebago, IL

Built 1987 Load: 45.4 t ADT: 150

ROCKTON RD

Good

Over: DRY RUN CREEK

.5 MI E IL 251, Winnebago, IL

Built 2013 Load: 45.4 t ADT: 9,150

CH 48

Good

Over: WALNUT FORK

5.2 M NE LIBERTY, Adams, IL

Built 1959 Load: 45.7 t ADT: 750

I-80 EB

Good

Over: BN RR

2.6 MI W JCT I-180, Bureau, IL

Built 2012 Load: 45.7 t ADT: 9,300

I-80 WB

Good

Over: BN RR

2.6 MI W JCT I-180, Bureau, IL

Built 2012 Load: 45.7 t ADT: 9,300

COUNTY HIGHWAY NO

Good

Over: ADAMS CREEK

2.0 MI NW LADD, Bureau, IL

Built 2008 Load: 45.7 t ADT: 600

Showing 24,251-24,300 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.