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 614

Good

Over: LITTLE INDIAN CREEK

0.5 MI NO PRENTICE, Morgan, IL

Built 1981 Load: 36.0 t ADT: 1,500

FAP 323 (US 36)

Good

Over: HAMMOND MUTUAL DITCH

.5 MI E OF HAMMOND, Moultrie, IL

Built 1999 Load: 36.0 t ADT: 2,750

IL 38

Good

Over: DRAINAGE DITCH

0.5 MI W OF ROCHELLE, Ogle, IL

Built 1993 Load: 36.0 t ADT: 3,100

FREEPORT RD

Good

Over: ELKHORN CREEK

4.0 MI SW FORRESTON, Ogle, IL

Built 1961 Load: 36.0 t ADT: 1,400

FLAGG ROAD

Good

Over: DRY RUN CREEK

1.5 MI NW ROCHELLE, Ogle, IL

Built 2010 Load: 36.0 t ADT: 5,100

ILL 154

Good

Over: BONNIE CREEK

2.2 MI.E OF150, Perry, IL

Built 1992 Load: 36.0 t ADT: 2,150

ILL 106

Good

Over: TRIB KISER CREEK

1.75MI SE OF BARRY, Pike, IL

Built 1986 Load: 36.0 t ADT: 1,600

US 54

Good

Over: SIX MILE CREEK

.3M SW IL 106, Pike, IL

Built 1997 Load: 36.0 t ADT: 2,900

TR-47A (Wilson Rd)

Good

Over: Trib to Plum Creek

2 Mi S of Tilden, Randolph, IL

Built 2017 Load: 36.0 t ADT: 200

ILL 92

Good

Over: STREAM

.02 MI E ARCHER DR, Rock Island, IL

Built 1985 Load: 36.0 t ADT: 10,900

OLD IL 92

Good

Over: DRAINAGE DITCH

1 MI. W. OF I-88, Rock Island, IL

Built 1999 Load: 36.0 t ADT: 650

FAS 606

Good

Over: N PLUM CK

1.5 MI SE EXETER, Scott, IL

Built 1983 Load: 36.0 t ADT: 375

OLD LINCOLN TRAIL

Good

Over: HOLLOW CREEK

.1 MI E ILL 161, St. Clair, IL

Built 1977 Load: 36.0 t ADT: 2,600

IL 15 - FA 817

Good

Over: TRIB OF L MUD CREEK

0.5 NW OF ST. LIBORY, St. Clair, IL

Built 1990 Load: 36.0 t ADT: 3,450

ILL 26

Good

Over: TRIB. OF CEDAR CREEK

S EDGE OF CEDARVILLE, Stephenson, IL

Built 1982 Load: 36.0 t ADT: 6,500

FAS 464-CH 1

Good

Over: TRIB TO MACKINAW RIV

SE-10-T23NR4W, Tazewell, IL

Built 1996 Load: 36.0 t ADT: 1,550

FAI 57 RAMP 219 ON

Good

Over: STREAM

0.2 MI E DONGOLA, Union, IL

Built 1959 Load: 36.0 t ADT: 175

TR 392

Good

Over: PAINTER CREEK

N EDGE OF BISMARCK, Vermilion, IL

Built 1987 Load: 36.0 t ADT: 50

FAP 332(IL 1)

Good

Over: STREAM

1.75 MI E OF HENNING, Vermilion, IL

Built 1993 Load: 36.0 t ADT: 4,550

FAS 499(CH 23)

Good

Over: LITTLE VERMILION RIV

E OF GEORGETOWN, Vermilion, IL

Built 1948 Load: 36.0 t ADT: 1,650

IL 9(FAP 697)

Good

Over: FOUNTAIN CREEK

.8 MI E OF CH 10, Vermilion, IL

Built 1984 Load: 36.0 t ADT: 2,050

TR 133A

Good

Over: STONY CREEK DITCH

.25 MI W STATE LINE, Vermilion, IL

Built 1988 Load: 36.0 t ADT: 75

CAMERON RD-FAS 407

Good

Over: CEDAR CREEK

SW-23-T11NR1W, Warren, IL

Built 1979 Load: 36.0 t ADT: 375

IL 40 LOCUST ST

Good

Over: STREAM

.1 MI S LYNN BLVD, Whiteside, IL

Built 1987 Load: 36.0 t ADT: 11,100

PLAINFIEL_NAPERVIL

Good

Over: DUPAGE RIVER

0.6M N OF 111TH ST, Will, IL

Built 2003 Load: 36.0 t ADT: 14,200

CH 13-S MARKET ST

Good

Over: TRIB CRAB ORCHARD CR

SCL OF MARION, Williamson, IL

Built 1986 Load: 36.0 t ADT: 3,550

IL 251

Good

Over: DRAINAGE DITCH

1.5 MI S US20 BYPASS, Winnebago, IL

Built 2019 Load: 36.0 t ADT: 7,600

CUNNINGHAM RD

Good

Over: SO BR KENT CREEK

0.25 MI E PIERPONT, Winnebago, IL

Built 2011 Load: 36.0 t ADT: 2,250

IL 61

Good

Over: THURMAN CREEK

.2M E LORAINE RD, Adams, IL

Built 1996 Load: 36.3 t ADT: 750

IL 78

Good

Over: SANGAMON RIVER

.5 N CHANDLERVILLE, Cass, IL

Built 2011 Load: 36.3 t ADT: 1,450

TR 360

Good

Over: CROOKED CREEK

3.4 MI SE WEAVER, Clark, IL

Built 1909 Load: 36.3 t ADT: 100

TR 191

Good

Over: East Mill Creek

3 Mi. SW Marshall, Clark, IL

Built 2020 Load: 36.3 t ADT: 150

FAP 328 (US 45)

Good

Over: GROVE CREEK

1.5 MI S LOUISVILLE, Clay, IL

Built 2009 Load: 36.3 t ADT: 5,200

FAS-719 (CH-7)

Good

Over: CROOKED CREEK

1 MI W IOLA, Clay, IL

Built 1936 Load: 36.3 t ADT: 450

FAP-781 (ILL-33)

Good

Over: BRUSH CREEK

1.5 MI E OBLONG, Crawford, IL

Built 1996 Load: 36.3 t ADT: 5,400

TR 150

Good

Over: DRAINAGE DITCH

1.4 MI NW HINDSBORO, Douglas, IL

Built 1988 Load: 36.3 t ADT: 50

FAS-1884 (CH-6)

Good

Over: TRIB HARPER CREEK

4 MI S ALBION, Edwards, IL

Built 1984 Load: 36.3 t ADT: 600

TR-89

Good

Over: LILY CREEK

2.5 MI N DEXTER, Effingham, IL

Built 1989 Load: 36.3 t ADT: 75

TR 266

Good

Over: LUCAS CREEK

1.7 MI SW EBERLE, Effingham, IL

Built 2012 Load: 36.3 t ADT: 50

FAP 752 (US 40)

Good

Over: CAMP CREEK

.75 MI E US 51, Fayette, IL

Built 2010 Load: 36.3 t ADT: 3,950

TR 99 DRUMMER

Good

Over: W BR DRUMMER CR

330E 300N, Ford, IL

Built 1975 Load: 36.3 t ADT: 125

FAS 873-AKIN RD

Good

Over: LITTLE BESSIE CK

850N-1860E, Franklin, IL

Built 1980 Load: 36.3 t ADT: 850

FAS 2870

Good

Over: ICG RAILROAD

NE Q SEC 15 T75 R4E, Franklin, IL

Built 1985 Load: 36.3 t ADT: 400

KEDRON RD

Good

Over: SUGARCAMP CREEK

4.0MI N LEAMINGTON, Gallatin, IL

Built 2018 Load: 36.3 t ADT: 10

Hillview Eldred Ro

Good

Over: Robley Hollow

2.7 M N OF ELDRED, Greene, IL

Built 1940 Load: 36.3 t ADT: 400

TR-129

Good

Over: APPLE CREEK

4 MI SE WHITE HALL, Greene, IL

Built 1890 Load: 36.3 t ADT: 25

CH 37, Livingston

Good

Over: REDDICK RUN

0.25 Mi E Reddick, Grundy, IL

Built 2013 Load: 36.3 t ADT: 350

FAP-776 (ILL-242)

Good

Over: STREAM

5 MI S WAYNE CO LN, Hamilton, IL

Built 2011 Load: 36.3 t ADT: 1,250

FAS 423 / CH 15

Good

Over: RILEY'S CREEK

.5MI S POWELLTON, Hancock, IL

Built 1994 Load: 36.3 t ADT: 300

C.H. 33

Good

Over: SLATER CREEK

1 M W BOWEN, Hancock, IL

Built 2003 Load: 36.3 t ADT: 850

Showing 22,501-22,550 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.