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 292/GARDNER RD

Good

Over: TRIB E FK MAZON RIV.

0.67 MI E GORMAN RD, Grundy, IL

Built 1999 Load: 37.6 t ADT: 2,400

TR 71

Good

Over: WILDCAT CREEK

4.5 MI SW LAHARPE, Hancock, IL

Built 1980 Load: 37.6 t ADT: 50

TR 396

Good

Over: BAPTIST CREEK

3.1 NE FOUNTAINGREEN, Hancock, IL

Built 1985 Load: 37.6 t ADT: 50

FAS 334 (CH 9)

Good

Over: TRIB. TO LOUIS CREEK

0.5 MI W BUCKLEY, Iroquois, IL

Built 2001 Load: 37.6 t ADT: 1,050

TR 353

Good

Over: FOUNTAIN CR

1 MI E OF CH 6, Iroquois, IL

Built 1994 Load: 37.6 t ADT: 25

FAS-1916 (CH-8)

Good

Over: Trib to Glen Creek

NE 1/4 SEC 23-7-2, Jackson, IL

Built 1985 Load: 37.6 t ADT: 1,100

FAS 748

Good

Over: LITTLE PIASA CREEK

2.2 MI W ILL 67, Jersey, IL

Built 1901 Load: 37.6 t ADT: 475

I-90

Good

Over: STREAM

1.2 M W US-20, Kane, IL

Built 1958 Load: 37.6 t ADT: 57,000

INDIAN TRAIL ROAD

Good

Over: INDIAN CREEK

.05MI E OF FARNSWRTH, Kane, IL

Built 2005 Load: 37.6 t ADT: 12,800

INTERSTATE 94 SB

Good

Over: E J & E RR

I94 .5M S ILL 176, Lake, IL

Built 1958 Load: 37.6 t ADT: 72,350

TR 108

Good

Over: TOMAHAWK CREEK

E 6TH RD N 3510, LaSalle, IL

Built 1987 Load: 37.6 t ADT: 175

TR 439

Good

Over: CAHOKIA CR

1/4 M S SAWYERVILLE, Macoupin, IL

Built 1980 Load: 37.6 t ADT: 175

LEBANON RD/FAU 912

Good

Over: CANTEEN CREEK

2M EAST 159, Madison, IL

Built 2003 Load: 37.6 t ADT: 1,750

US 51 NB

Good

Over: BNSFRR

1 mi S of Centralia, Marion, IL

Built 1993 Load: 37.6 t ADT: 6,900

US 51 SB (FAP 60)

Good

Over: BURLINGTON NORTHERN

1 MI S CENTRALIA, Marion, IL

Built 1993 Load: 37.6 t ADT: 6,900

FAS-1786

Good

Over: WARREN BRANCH

2 MI NE ALMA, Marion, IL

Built 1985 Load: 37.6 t ADT: 450

TR-218A

Good

Over: TRIB DAVISON CREEK

0.5 MI N TONTI, Marion, IL

Built 1993 Load: 37.6 t ADT: 275

FAS-371 (CH-12)

Good

Over: CROW CREEK

2.5MI NWOF WASHBURN, Marshall, IL

Built 1999 Load: 37.6 t ADT: 725

US 150

Good

Over: TRIB. OF SALT CREEK

2.0 M S OF LEROY, McLean, IL

Built 2001 Load: 37.6 t ADT: 900

FAS 1480 CH 36

Good

Over: LITTLE KICKAPOO CR

5.0 MI N HEYWORTH, McLean, IL

Built 1986 Load: 37.6 t ADT: 375

TR 205

Good

Over: PIKE RUN

NE-1-T13NR4W, Mercer, IL

Built 1980 Load: 37.6 t ADT: 50

TR 52

Good

Over: TRIB MCCRANEY CREEK

2200N 1130E, Pike, IL

Built 1987 Load: 37.6 t ADT: 125

TR 115

Good

Over: TRIB TO HESS BAYOU

1 MI E MERIDIAN RD, Pulaski, IL

Built 1999 Load: 37.6 t ADT: 75

FAS 859

Good

Over: LITTLE MARYS RIVER

3.5 MI W STEELVILLE, Randolph, IL

Built 1992 Load: 37.6 t ADT: 900

ANDALUSIA RD

Good

Over: DRAINAGE DITCH

0.3MI W JCT US67, Rock Island, IL

Built 2001 Load: 37.6 t ADT: 10,400

TR 4 (18W)

Good

Over: Spring Creek

0.32 mi N of I-72, Sangamon, IL

Built 2022 Load: 37.6 t ADT: 75

TR 164

Good

Over: Lick Creek

0.02 mi. S TR 283, Sangamon, IL

Built 2017 Load: 37.6 t ADT: 250

TR 162

Good

Over: BIG SANDY CREEK

6MI ENE WINCHESTER, Scott, IL

Built 1989 Load: 37.6 t ADT: 50

ROCK CITY RD

Good

Over: PECATONICA RIVER

7.0 MI E FREEPORT, Stephenson, IL

Built 1950 Load: 37.6 t ADT: 1,100

TR 195/KENTUCKY RD

Good

Over: BEAUCOUP CREEK

2MI S OF BEAUCOUP, Washington, IL

Built 2002 Load: 37.6 t ADT: 50

FAP 855 - IL 14

Good

Over: STREAM

4 MI E ENFIELD JCT, White, IL

Built 2006 Load: 37.6 t ADT: 3,050

CH 13

Good

Over: TRIB TO LIMEKILN CR

3 MI W CENTERVILLE, White, IL

Built 2014 Load: 37.6 t ADT: 75

US 45

Good

Over: HICKORY CREEK

50 FT N US-30, Will, IL

Built 1999 Load: 37.6 t ADT: 33,700

CONDON ROAD

Good

Over: CANAL CREEK

0.3 MI E ROTHWELL RD, Winnebago, IL

Built 1976 Load: 37.6 t ADT: 275

TR 118

Good

Over: SAND BRANCH

2.75 MI S W MENDON, Adams, IL

Built 1979 Load: 37.9 t ADT: 125

CH 4

Good

Over: PIGEON CREEK

2.5 MI E PAYSON, Adams, IL

Built 2000 Load: 37.9 t ADT: 575

TR 13

Good

Over: BEARCAT CREEK

.61 MI S. PANAMA, Bond, IL

Built 1996 Load: 37.9 t ADT: 25

FAS 522

Good

Over: LONG POINT SLOUGH

.09 MI N OF LONGVIEW, Champaign, IL

Built 1988 Load: 37.9 t ADT: 500

WILLOW RD

Good

Over: SKOKIE RIVER

0.4 M E I-94, Cook, IL

Built 1935 Load: 37.9 t ADT: 17,300

ED BOSSERT DR

Good

Over: I&M CANAL

.16 MI. N. OF MAIN, Cook, IL

Built 1991 Load: 37.9 t ADT: 600

FAP-332 (ILL-1)

Good

Over: BR SUGAR CREEK

0.5 MI S TRIMBLE, Crawford, IL

Built 1989 Load: 37.9 t ADT: 2,500

US 51 (SB)(FAP 322

Good

Over: TEN MILE CREEK

1.5 MI S WAPELLA, De Witt, IL

Built 1979 Load: 37.9 t ADT: 10,300

FAP 323(US 36)

Good

Over: DRAINAGE DITCH

1.25 MI W OF NEWMAN, Douglas, IL

Built 1989 Load: 37.9 t ADT: 2,600

FAP 323(US 36)

Good

Over: BRUSHY FORK TRIB

2.06 MI W OF NEWMAN, Douglas, IL

Built 1991 Load: 37.9 t ADT: 2,100

FAP 323(US 36)

Good

Over: STREAM

1 MI E OF IL 49, Edgar, IL

Built 1989 Load: 37.9 t ADT: 1,650

FAP 323(US 36)

Good

Over: STREAM

2.1 MI E OF IL 49, Edgar, IL

Built 1989 Load: 37.9 t ADT: 1,650

TR-62

Good

Over: BIG CREEK

3 MI S DEXTER, Effingham, IL

Built 1984 Load: 37.9 t ADT: 125

TR 217

Good

Over: SALT CREEK

1.25 MI SE WATSON WY, Effingham, IL

Built 1986 Load: 37.9 t ADT: 350

TR 34A

Good

Over: FULFER CREEK

1.25 MI SW GILMORE, Effingham, IL

Built 2013 Load: 37.9 t ADT: 50

CH 14

Good

Over: PRARIE CK

JIM BROWNING RD, Franklin, IL

Built 1979 Load: 37.9 t ADT: 350

Showing 22,851-22,900 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.